{"id":"https://data.mapsnap.org/runs/v1.3/iiif/loc/sanborn03985_052.main.iiif.json","type":"AnnotationPage","@context":["http://www.w3.org/ns/anno.jsonld"],"label":"Detroit, Michigan | 1950 | mapsnap generated fit (2026-09-21)","creator":{"type":"Software","name":"mapsnap","homepage":"https://mapsnap.org"},"rights":"https://opendatacommons.org/licenses/odbl/1-0/","metadata":[{"label":"generated","value":"2026-09-21"},{"label":"run","value":"corpus-v1"},{"label":"pages","value":"118"},{"label":"placed","value":"108"},{"label":"unplaced","value":"10"},{"label":"fit sources","value":"georef 62, georef-snap 42, georef-street 3, snap:1 1"},{"label":"key map","value":"georeferenced"},{"label":"split sheets","value":"4 sheet(s) cut into 8 panels"},{"label":"unplaced pages","value":"p0 (tier 1, 42.36010,-83.03756 +/-235m); p102__2 (tier 2, 42.37010,-83.05827 +/-887m); p107 (tier 2, 42.37631,-83.05037 +/-162m); p108 (tier 1, 42.37366,-83.04710 +/-187m); p12 (tier 2, 42.34296,-83.04365 +/-900m); p15__2 (tier 1, 42.34229,-83.05419 +/-100m); p31__2 (tier 1, 42.34899,-83.05676 +/-100m); p34 (tier 2, 42.35585,-83.05484 +/-1900m); p35 (tier 1, 42.35094,-83.05082 +/-260m); p48 (tier 1, 42.35434,-83.05748 +/-254m)"}],"items":[{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0001/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Detroit, Michigan | 1950 | sanborn03985_052 p1","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T07:17:22Z","modified":"2026-09-21T07:17:22Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0001/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0001/info.json","type":"ImageService2","height":7796,"width":6560},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"5196.6,2592.2 3618.4,7259.2 1147.8,7796.0 -0.0,7796.0 -0.0,2295.7 4648.7,2173.4 5196.6,2592.2\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0001/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.05134342421587,42.33645933498319]}},{"type":"Feature","properties":{"resourceCoords":[6560.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.04786364219233,42.33793073465851]}},{"type":"Feature","properties":{"resourceCoords":[6560.0,7796.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.04551467822033,42.33485221222599]}},{"type":"Feature","properties":{"resourceCoords":[0.0,7796.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.04899446024388,42.33338081255067]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0010/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Detroit, Michigan | 1950 | sanborn03985_052 p10","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T07:17:22Z","modified":"2026-09-21T07:17:22Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0010/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0010/info.json","type":"ImageService2","height":7796,"width":6476},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"-0.0,5698.3 -0.0,1271.7 6476.0,1378.1 6476.0,6646.7 2516.0,6653.5 2506.0,5836.9 -0.0,5851.8 -0.0,5698.3\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0010/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.05158908377705,42.34214330134784]}},{"type":"Feature","properties":{"resourceCoords":[6476.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.04818790444816,42.343574978339085]}},{"type":"Feature","properties":{"resourceCoords":[6476.0,7796.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.04587250292647,42.34052723603939]}},{"type":"Feature","properties":{"resourceCoords":[0.0,7796.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.04927368225536,42.33909555904815]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0100/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Detroit, Michigan | 1950 | sanborn03985_052 p100","metadata":[{"label":"streets","value":"3"},{"label":"intersections","value":"2"}],"created":"2026-09-21T07:17:22Z","modified":"2026-09-21T07:17:22Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0100/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0100/info.json","type":"ImageService2","height":7796,"width":6612},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"6000.0,7638.0 1519.4,7677.1 1460.0,-0.0 5975.4,-0.0 6000.0,7638.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0100/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[6000.0,4604.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-83.0519775,42.3668116]}},{"type":"Feature","properties":{"resourceCoords":[6000.0,7640.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-83.0536177,42.3662183]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0101/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Detroit, Michigan | 1950 | sanborn03985_052 p101","metadata":[{"label":"streets","value":"7"},{"label":"intersections","value":"7"}],"created":"2026-09-21T07:17:22Z","modified":"2026-09-21T07:17:22Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0101/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0101/info.json","type":"ImageService2","height":7796,"width":6504},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1045.7,7433.6 847.0,3061.1 1124.8,3060.9 1155.8,2757.9 849.2,238.5 6504.0,209.2 6504.0,7399.7 1045.7,7433.6\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0101/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[3304.0,3060.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-83.0491776,42.3717041]}},{"type":"Feature","properties":{"resourceCoords":[5884.0,212.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-83.046956,42.371224]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0102__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Detroit, Michigan | 1950 | sanborn03985_052 p102 [1]","metadata":[{"label":"streets","value":"7"},{"label":"intersections","value":"7"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"6612.0"},{"label":"split_canvas_h","value":"7796.0"}],"created":"2026-09-21T07:17:22Z","modified":"2026-09-21T07:17:22Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0102__1/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0102/info.json","type":"ImageService2","height":7796,"width":6612},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1443.3,7333.4 6011.8,7389.0 6015.7,417.5 1476.2,372.4 1443.3,7333.4\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0102__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[3440.0,3052.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-83.047811,42.369622]}},{"type":"Feature","properties":{"resourceCoords":[3440.0,228.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-83.046265,42.370182]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0103/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Detroit, Michigan | 1950 | sanborn03985_052 p103","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"9"}],"created":"2026-09-21T07:17:22Z","modified":"2026-09-21T07:17:22Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0103/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0103/info.json","type":"ImageService2","height":7796,"width":6512},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"5908.0,7632.0 942.9,7633.2 774.9,6609.8 824.0,-0.0 5897.1,19.8 5908.0,7632.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0103/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[3340.0,236.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-83.04359,42.3737354]}},{"type":"Feature","properties":{"resourceCoords":[5908.0,7632.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-83.046956,42.371224]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0104/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Detroit, Michigan | 1950 | sanborn03985_052 p104","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T07:17:22Z","modified":"2026-09-21T07:17:22Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0104/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0104/info.json","type":"ImageService2","height":7796,"width":6612},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"5904.6,-0.0 5953.8,7796.0 805.8,7796.0 757.6,-0.0 5904.6,-0.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0104/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.04298246837024,42.37305016236682]}},{"type":"Feature","properties":{"resourceCoords":[6612.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.0412427146959,42.37036108624002]}},{"type":"Feature","properties":{"resourceCoords":[6612.0,7796.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.04550422112965,42.368834906506514]}},{"type":"Feature","properties":{"resourceCoords":[0.0,7796.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.04724397480399,42.37152398263332]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0105/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Detroit, Michigan | 1950 | sanborn03985_052 p105","metadata":[{"label":"streets","value":"4"},{"label":"intersections","value":"2"}],"created":"2026-09-21T07:17:22Z","modified":"2026-09-21T07:17:22Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0105/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0105/info.json","type":"ImageService2","height":7796,"width":6512},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"4656.3,6945.3 1031.8,7081.0 730.0,7020.0 757.2,6740.6 -0.0,6701.2 -0.0,210.9 1275.7,323.8 1302.8,0.0 6512.0,0.0 6512.0,959.0 6294.2,933.4 5883.2,4284.4 6512.0,4383.5 6512.0,7131.1 4656.3,6945.3\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0105/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[3596.0,7020.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-83.048293,42.373236]}},{"type":"Feature","properties":{"resourceCoords":[728.0,7020.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-83.0497511,42.3725778]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0106/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Detroit, Michigan | 1950 | sanborn03985_052 p106","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T07:17:22Z","modified":"2026-09-21T07:17:22Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0106/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0106/info.json","type":"ImageService2","height":7796,"width":6612},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"6612.0,6752.3 6313.8,6757.3 4176.7,6793.5 3156.4,6810.7 2918.9,6814.8 2549.0,6826.3 1088.9,6845.7 713.7,3798.3 -0.0,3770.2 0.0,0.0 6612.0,0.0 6612.0,6752.3\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0106/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.04881230529983,42.37614339997783]}},{"type":"Feature","properties":{"resourceCoords":[6612.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.045620692746,42.3772296929148]}},{"type":"Feature","properties":{"resourceCoords":[6612.0,7796.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.04389906717205,42.37443009032718]}},{"type":"Feature","properties":{"resourceCoords":[0.0,7796.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.04709067972588,42.373343797390206]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0109/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Detroit, Michigan | 1950 | sanborn03985_052 p109","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T07:17:22Z","modified":"2026-09-21T07:17:22Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0109/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0109/info.json","type":"ImageService2","height":7796,"width":6512},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"196.8,5417.7 159.6,7796.0 -0.0,7796.0 0.0,0.0 5913.9,-0.0 6019.9,1077.7 6334.3,1071.2 6377.3,5297.9 196.8,5417.7\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0109/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.05264197770313,42.37803460551591]}},{"type":"Feature","properties":{"resourceCoords":[6512.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.05091609831311,42.37535819317575]}},{"type":"Feature","properties":{"resourceCoords":[6512.0,7796.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.0552230093081,42.373821056636096]}},{"type":"Feature","properties":{"resourceCoords":[0.0,7796.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.05694888869812,42.376497468976254]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0011/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Detroit, Michigan | 1950 | sanborn03985_052 p11","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T07:17:22Z","modified":"2026-09-21T07:17:22Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0011/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0011/info.json","type":"ImageService2","height":7796,"width":6560},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"-0.0,7796.0 101.2,4322.5 1735.5,4318.9 1762.3,455.1 6093.7,470.2 6094.1,4959.5 6560.0,4963.7 6560.0,7796.0 -0.0,7796.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0011/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.07127701334797,42.37179824909373]}},{"type":"Feature","properties":{"resourceCoords":[6560.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.06949086553139,42.36914018942964]}},{"type":"Feature","properties":{"resourceCoords":[6560.0,7796.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.07373654582273,42.36756086695199]}},{"type":"Feature","properties":{"resourceCoords":[0.0,7796.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.0755226936393,42.370218926616076]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0110/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Detroit, Michigan | 1950 | sanborn03985_052 p110","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T07:17:22Z","modified":"2026-09-21T07:17:22Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0110/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0110/info.json","type":"ImageService2","height":7796,"width":6612},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"6612.0,6026.7 128.4,5869.8 240.3,2779.3 6612.0,2409.6 6612.0,6026.7\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0110/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.05083142351664,42.3756554246146]}},{"type":"Feature","properties":{"resourceCoords":[6612.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.04894162036403,42.373042334414635]}},{"type":"Feature","properties":{"resourceCoords":[6612.0,7796.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.05308289288963,42.37138459932538]}},{"type":"Feature","properties":{"resourceCoords":[0.0,7796.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.05497269604224,42.373997689525346]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0111/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Detroit, Michigan | 1950 | sanborn03985_052 p111","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T07:17:22Z","modified":"2026-09-21T07:17:22Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0111/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0111/info.json","type":"ImageService2","height":7796,"width":6512},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"313.6,4454.8 729.6,0.0 5412.8,0.0 6512.0,4561.8 4571.7,7796.0 42.1,7796.0 65.1,6024.9 324.7,6018.8 313.6,4454.8\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0111/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.07399773486829,42.370733483116815]}},{"type":"Feature","properties":{"resourceCoords":[6512.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.07047865585245,42.3720555078022]}},{"type":"Feature","properties":{"resourceCoords":[6512.0,7796.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.06835144467574,42.3689209747481]}},{"type":"Feature","properties":{"resourceCoords":[0.0,7796.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.07187052369157,42.367598950062714]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0112/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Detroit, Michigan | 1950 | sanborn03985_052 p112","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T07:17:22Z","modified":"2026-09-21T07:17:22Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0112/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0112/info.json","type":"ImageService2","height":7796,"width":6612},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1142.4,4588.6 1140.0,4333.1 -0.0,4333.0 0.0,0.0 6612.0,0.0 6612.0,1411.4 5904.1,1410.7 5916.6,4334.7 3694.9,4333.3 3695.3,4558.9 1142.4,4588.6\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0112/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.07108297896976,42.371847930574475]}},{"type":"Feature","properties":{"resourceCoords":[6612.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.06749192438885,42.37316511193008]}},{"type":"Feature","properties":{"resourceCoords":[6612.0,7796.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.06540452432384,42.37001489936616]}},{"type":"Feature","properties":{"resourceCoords":[0.0,7796.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.06899557890475,42.36869771801056]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0113__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Detroit, Michigan | 1950 | sanborn03985_052 p113 [1]","metadata":[{"label":"streets","value":"3"},{"label":"intersections","value":"3"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"3258.0"},{"label":"split_canvas_h","value":"7796.0"}],"created":"2026-09-21T07:17:22Z","modified":"2026-09-21T07:17:22Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0113__1/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0113/info.json","type":"ImageService2","height":7796,"width":6472},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"2775.8,607.2 392.9,551.3 -0.0,689.7 -0.0,4374.6 0.0,7210.0 -0.0,7618.8 2834.3,7620.0 2775.8,607.2\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0113__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[227.9,7620.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-83.0636671,42.3737441]}},{"type":"Feature","properties":{"resourceCoords":[2834.3,7620.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-83.062933,42.372642]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0113__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Detroit, Michigan | 1950 | sanborn03985_052 p113 [2]","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"12"},{"label":"split_canvas_x","value":"3206.0"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"3266.0"},{"label":"split_canvas_h","value":"7796.0"}],"created":"2026-09-21T07:17:22Z","modified":"2026-09-21T07:17:22Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0113__2/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0113/info.json","type":"ImageService2","height":7796,"width":6472},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"3209.1,459.0 3255.6,7241.2 3256.3,7397.2 6139.1,7398.4 6168.5,467.8 3209.1,459.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0113__2/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[6140.2,4320.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-83.065035,42.371887]}},{"type":"Feature","properties":{"resourceCoords":[6140.2,2420.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-83.064002,42.372265]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0013/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Detroit, Michigan | 1950 | sanborn03985_052 p13","metadata":[{"label":"streets","value":"4"},{"label":"intersections","value":"8"}],"created":"2026-09-21T07:17:22Z","modified":"2026-09-21T07:17:22Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0013/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0013/info.json","type":"ImageService2","height":7796,"width":6560},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"-0.0,7503.6 -0.0,5486.6 985.7,5182.2 869.7,178.7 1832.3,192.5 1833.9,-0.0 6560.0,-0.0 6560.0,7796.0 358.8,7796.0 -0.0,7503.6\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0013/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1728.0,2840.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-83.041684,42.345441]}},{"type":"Feature","properties":{"resourceCoords":[876.0,2840.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-83.04192,42.345799]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0014/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Detroit, Michigan | 1950 | sanborn03985_052 p14","metadata":[{"label":"streets","value":"4"},{"label":"intersections","value":"0"}],"created":"2026-09-21T07:17:22Z","modified":"2026-09-21T07:17:22Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0014/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0014/info.json","type":"ImageService2","height":7796,"width":6476},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"2982.0,7126.9 2977.5,7796.0 745.4,7796.0 838.9,263.7 1944.6,329.1 1844.3,-0.0 6476.0,-0.0 6476.0,7170.0 2982.0,7126.9\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0014/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.038991,42.3443227]}},{"type":"Feature","properties":{"resourceCoords":[6476.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.0372089,42.3417023]}},{"type":"Feature","properties":{"resourceCoords":[6476.0,7796.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.0414766,42.3401166]}},{"type":"Feature","properties":{"resourceCoords":[0.0,7796.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.0432587,42.342737]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0015__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Detroit, Michigan | 1950 | sanborn03985_052 p15 [1]","metadata":[{"label":"streets","value":"7"},{"label":"intersections","value":"4"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"6560.0"},{"label":"split_canvas_h","value":"7796.0"}],"created":"2026-09-21T07:17:22Z","modified":"2026-09-21T07:17:22Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0015__1/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0015/info.json","type":"ImageService2","height":7796,"width":6560},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"5413.9,7551.0 5424.4,6453.2 5573.8,6455.3 5296.3,1760.3 5254.7,1671.5 -0.0,1657.1 -0.0,7796.0 5413.9,7551.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0015__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1288.0,5224.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-83.054021,42.3417562]}},{"type":"Feature","properties":{"resourceCoords":[1284.0,244.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-83.055459,42.3437694]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0016/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Detroit, Michigan | 1950 | sanborn03985_052 p16","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T07:17:22Z","modified":"2026-09-21T07:17:22Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0016/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0016/info.json","type":"ImageService2","height":7796,"width":6476},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"-0.0,1859.0 6161.0,2215.4 5977.9,5599.2 6476.0,5636.5 6476.0,7796.0 212.0,7796.0 -0.0,1859.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0016/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.05338233297074,42.344747134479995]}},{"type":"Feature","properties":{"resourceCoords":[6476.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.04994324835444,42.346185218725886]}},{"type":"Feature","properties":{"resourceCoords":[6476.0,7796.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.04761738666707,42.34310363986698]}},{"type":"Feature","properties":{"resourceCoords":[0.0,7796.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.05105647128337,42.34166555562109]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0017/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Detroit, Michigan | 1950 | sanborn03985_052 p17","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"6"}],"created":"2026-09-21T07:17:22Z","modified":"2026-09-21T07:17:22Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0017/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0017/info.json","type":"ImageService2","height":7796,"width":6560},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"-0.0,5904.4 -0.0,489.8 5602.8,465.5 5567.3,7269.7 5241.9,7338.0 2568.3,7342.3 2810.6,7276.6 1054.4,7281.1 1044.5,5887.8 -0.0,5904.4\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0017/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[4052.0,4276.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-83.0489089,42.3476107]}},{"type":"Feature","properties":{"resourceCoords":[5556.0,4276.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-83.0485078,42.3469951]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0018/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Detroit, Michigan | 1950 | sanborn03985_052 p18","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T07:17:22Z","modified":"2026-09-21T07:17:22Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0018/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0018/info.json","type":"ImageService2","height":7796,"width":6516},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"6397.8,-0.0 6516.0,7333.9 -0.0,7453.2 325.2,7379.8 282.8,-0.0 6397.8,-0.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0018/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.04616612825926,42.3479538717845]}},{"type":"Feature","properties":{"resourceCoords":[6516.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.04448207325318,42.345272132996755]}},{"type":"Feature","properties":{"resourceCoords":[6516.0,7796.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.04879286120972,42.343772456466084]}},{"type":"Feature","properties":{"resourceCoords":[0.0,7796.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.0504769162158,42.34645419525383]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0019/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Detroit, Michigan | 1950 | sanborn03985_052 p19","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T07:17:22Z","modified":"2026-09-21T07:17:22Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0019/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0019/info.json","type":"ImageService2","height":7796,"width":6560},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"-0.0,2819.7 1547.8,2852.9 1550.5,285.6 5021.8,125.9 5033.7,606.3 5183.7,606.5 5280.9,6985.5 5204.7,7521.6 -0.0,7575.0 -0.0,2819.7\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0019/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.04361391054854,42.35133081442401]}},{"type":"Feature","properties":{"resourceCoords":[6560.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.0418890924282,42.34864376554462]}},{"type":"Feature","properties":{"resourceCoords":[6560.0,7796.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.04617966920964,42.34711817082585]}},{"type":"Feature","properties":{"resourceCoords":[0.0,7796.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.04790448732997,42.34980521970524]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0002/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Detroit, Michigan | 1950 | sanborn03985_052 p2","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"11"}],"created":"2026-09-21T07:17:22Z","modified":"2026-09-21T07:17:22Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0002/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0002/info.json","type":"ImageService2","height":7796,"width":6452},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"-0.0,7796.0 -0.0,4466.9 631.1,4467.7 627.1,3312.0 2705.1,3268.0 2073.6,1152.4 3211.1,515.9 4292.8,2360.3 4451.5,2264.0 5804.9,4763.2 5495.7,4789.3 4328.9,5474.6 5106.7,6734.2 6452.0,5903.5 6452.0,7796.0 -0.0,7796.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0002/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[644.0,6200.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-83.0478434,42.3329519]}},{"type":"Feature","properties":{"resourceCoords":[2704.0,3268.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-83.0476396,42.3345892]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0020/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Detroit, Michigan | 1950 | sanborn03985_052 p20","metadata":[{"label":"streets","value":"7"},{"label":"intersections","value":"0"}],"created":"2026-09-21T07:17:22Z","modified":"2026-09-21T07:17:22Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0020/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0020/info.json","type":"ImageService2","height":7796,"width":6516},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"6516.0,5018.2 5575.5,5298.2 5561.0,6712.2 -0.0,6549.9 -0.0,239.6 6454.7,258.6 6516.0,5018.2\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0020/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.0421747,42.3492404]}},{"type":"Feature","properties":{"resourceCoords":[6516.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.0402368,42.3463764]}},{"type":"Feature","properties":{"resourceCoords":[6516.0,7796.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.0448731,42.344662799999995]}},{"type":"Feature","properties":{"resourceCoords":[0.0,7796.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.046811,42.3475268]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0021/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Detroit, Michigan | 1950 | sanborn03985_052 p21","metadata":[{"label":"streets","value":"8"},{"label":"intersections","value":"11"}],"created":"2026-09-21T07:17:22Z","modified":"2026-09-21T07:17:22Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0021/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0021/info.json","type":"ImageService2","height":7796,"width":6560},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"6117.9,882.8 6151.8,5985.1 552.4,6116.9 457.3,3887.6 -0.0,3898.0 -0.0,3747.4 455.1,3836.0 334.9,1019.2 6117.9,882.8\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0021/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[3312.0,960.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-83.0415215,42.3509285]}},{"type":"Feature","properties":{"resourceCoords":[480.0,3732.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-83.0423628,42.3492492]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0022/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Detroit, Michigan | 1950 | sanborn03985_052 p22","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"7"}],"created":"2026-09-21T07:17:22Z","modified":"2026-09-21T07:17:22Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0022/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0022/info.json","type":"ImageService2","height":7796,"width":6516},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"6312.8,1653.5 6345.4,7796.0 110.5,7796.0 122.5,1672.5 6312.8,1653.5\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0022/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[6320.0,3668.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-83.035866,42.351596]}},{"type":"Feature","properties":{"resourceCoords":[88.0,3668.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-83.0392822,42.3503731]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0023/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Detroit, Michigan | 1950 | sanborn03985_052 p23","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T07:17:22Z","modified":"2026-09-21T07:17:22Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0023/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0023/info.json","type":"ImageService2","height":7796,"width":6560},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"-0.0,6780.5 -0.0,1118.0 1796.5,1138.3 1802.0,2026.7 5928.8,1503.7 5825.9,6812.1 -0.0,6780.5\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0023/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.03803576650047,42.349646763503394]}},{"type":"Feature","properties":{"resourceCoords":[6560.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.0362708814765,42.347007984145485]}},{"type":"Feature","properties":{"resourceCoords":[6560.0,7796.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.04048425998971,42.34544690471257]}},{"type":"Feature","properties":{"resourceCoords":[0.0,7796.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.04224914501368,42.348085684070476]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0024/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Detroit, Michigan | 1950 | sanborn03985_052 p24","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T07:17:22Z","modified":"2026-09-21T07:17:22Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0024/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0024/info.json","type":"ImageService2","height":7796,"width":6516},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"6516.0,6904.4 5501.8,6895.6 5500.9,6547.8 560.3,6587.4 591.1,1105.0 1244.8,1090.9 1278.2,584.8 1549.7,230.9 2035.7,871.1 1918.9,-0.0 6516.0,-0.0 6516.0,6904.4\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0024/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.03661501031074,42.34748188053381]}},{"type":"Feature","properties":{"resourceCoords":[6516.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.03491681929161,42.344852638952275]}},{"type":"Feature","properties":{"resourceCoords":[6516.0,7796.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.03914317626075,42.343340358405875]}},{"type":"Feature","properties":{"resourceCoords":[0.0,7796.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.04084136727988,42.34596959998741]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0025/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Detroit, Michigan | 1950 | sanborn03985_052 p25","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"7"}],"created":"2026-09-21T07:17:22Z","modified":"2026-09-21T07:17:22Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0025/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0025/info.json","type":"ImageService2","height":7796,"width":6560},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"6560.0,7422.5 6171.5,6737.2 5861.8,7042.5 5763.5,7527.5 5127.2,7452.2 5078.9,7796.0 989.9,7796.0 1884.8,832.1 3443.5,961.9 2938.7,-0.0 6560.0,-0.0 6560.0,7422.5\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0025/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[3452.0,7240.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-83.037521,42.347719]}},{"type":"Feature","properties":{"resourceCoords":[948.0,716.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-83.035017,42.350314]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0026/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Detroit, Michigan | 1950 | sanborn03985_052 p26","metadata":[{"label":"streets","value":"9"},{"label":"intersections","value":"14"}],"created":"2026-09-21T07:17:22Z","modified":"2026-09-21T07:17:22Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0026/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0026/info.json","type":"ImageService2","height":7796,"width":6516},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"5733.8,6168.5 6357.2,7070.0 670.8,7105.8 705.8,620.1 2034.4,636.1 2018.2,-0.0 6516.0,-0.0 6516.0,6072.7 5733.8,6168.5\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0026/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[2208.0,4308.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-83.033915,42.351539]}},{"type":"Feature","properties":{"resourceCoords":[5464.0,7128.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-83.0345687,42.3496524]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0027/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Detroit, Michigan | 1950 | sanborn03985_052 p27","metadata":[{"label":"streets","value":"8"},{"label":"intersections","value":"15"}],"created":"2026-09-21T07:17:22Z","modified":"2026-09-21T07:17:22Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0027/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0027/info.json","type":"ImageService2","height":7796,"width":6560},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"6070.8,646.1 6082.8,7146.2 445.0,7142.2 428.3,641.6 6070.8,646.1\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0027/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[3288.0,4324.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-83.03507,42.353288]}},{"type":"Feature","properties":{"resourceCoords":[436.0,4324.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-83.035836,42.354443]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0028/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Detroit, Michigan | 1950 | sanborn03985_052 p28","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T07:17:22Z","modified":"2026-09-21T07:17:22Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0028/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0028/info.json","type":"ImageService2","height":7796,"width":6516},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1399.9,7796.0 1367.0,837.3 6516.0,822.6 6516.0,7796.0 1399.9,7796.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0028/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.03478740395013,42.3552473074925]}},{"type":"Feature","properties":{"resourceCoords":[6516.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.03123367639819,42.356532059951036]}},{"type":"Feature","properties":{"resourceCoords":[6516.0,7796.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.02916821812782,42.353367825378626]}},{"type":"Feature","properties":{"resourceCoords":[0.0,7796.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.03272194567977,42.35208307292009]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0029/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Detroit, Michigan | 1950 | sanborn03985_052 p29","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T07:17:22Z","modified":"2026-09-21T07:17:22Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0029/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0029/info.json","type":"ImageService2","height":7796,"width":6560},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"-0.0,7558.5 -0.0,-0.0 1538.7,0.0 1510.0,1750.6 5402.5,1598.2 5361.6,6218.0 5478.5,7796.0 130.1,7796.0 128.0,7552.5 -0.0,7558.5\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0029/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.0580091713616,42.346019223302655]}},{"type":"Feature","properties":{"resourceCoords":[6560.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.05447896229553,42.34738759906601]}},{"type":"Feature","properties":{"resourceCoords":[6560.0,7796.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.05229414080961,42.34426493098993]}},{"type":"Feature","properties":{"resourceCoords":[0.0,7796.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.05582434987568,42.342896555226574]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0003/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Detroit, Michigan | 1950 | sanborn03985_052 p3","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"7"}],"created":"2026-09-21T07:17:22Z","modified":"2026-09-21T07:17:22Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0003/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0003/info.json","type":"ImageService2","height":7796,"width":6560},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1656.0,324.9 4017.2,1086.2 4313.7,922.1 4107.7,1249.8 6560.0,6456.2 6560.0,7796.0 0.0,7796.0 0.0,6349.7 1656.0,324.9\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0003/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1592.0,6516.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-83.0455085,42.3347021]}},{"type":"Feature","properties":{"resourceCoords":[5280.0,2524.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-83.0466229,42.3371176]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0030/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Detroit, Michigan | 1950 | sanborn03985_052 p30","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T07:17:22Z","modified":"2026-09-21T07:17:22Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0030/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0030/info.json","type":"ImageService2","height":7796,"width":6516},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"790.0,0.0 810.1,1503.2 4266.6,1302.0 4272.2,1976.0 6450.6,1986.8 6445.2,7796.0 279.5,7796.0 87.7,6143.6 8.9,-0.0 790.0,0.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0030/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.05507517022404,42.34713907913227]}},{"type":"Feature","properties":{"resourceCoords":[6516.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.0514990823355,42.348438241722015]}},{"type":"Feature","properties":{"resourceCoords":[6516.0,7796.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.04941072738737,42.34525368576793]}},{"type":"Feature","properties":{"resourceCoords":[0.0,7796.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.05298681527591,42.34395452317818]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0031__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Detroit, Michigan | 1950 | sanborn03985_052 p31 [1]","metadata":[{"label":"streets","value":"7"},{"label":"intersections","value":"4"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"6560.0"},{"label":"split_canvas_h","value":"7796.0"}],"created":"2026-09-21T07:17:22Z","modified":"2026-09-21T07:17:22Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0031__1/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0031/info.json","type":"ImageService2","height":7796,"width":6560},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"-0.0,5412.3 886.0,5391.4 888.4,7116.6 4704.4,6876.4 4717.0,5334.9 5488.3,5336.9 5463.6,562.0 4636.9,614.4 4642.4,1610.4 -0.0,1630.3 -0.0,5412.3\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0031__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[888.0,2680.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-83.057924,42.347452]}},{"type":"Feature","properties":{"resourceCoords":[888.0,7660.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-83.056557,42.34541]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0032/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Detroit, Michigan | 1950 | sanborn03985_052 p32","metadata":[{"label":"streets","value":"7"},{"label":"intersections","value":"11"}],"created":"2026-09-21T07:17:22Z","modified":"2026-09-21T07:17:22Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0032/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0032/info.json","type":"ImageService2","height":7796,"width":6516},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"-0.0,7023.2 -0.0,-0.0 6516.0,0.0 6516.0,6040.6 5710.9,6033.6 5687.4,7796.0 5638.0,7552.0 3450.5,7524.1 3453.9,6848.2 -0.0,7023.2\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0032/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[5640.0,4352.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-83.051874,42.348911]}},{"type":"Feature","properties":{"resourceCoords":[5640.0,7552.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-83.0509958,42.3476161]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0033/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Detroit, Michigan | 1950 | sanborn03985_052 p33","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T07:17:22Z","modified":"2026-09-21T07:17:22Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0033/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0033/info.json","type":"ImageService2","height":7796,"width":6556},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"-0.0,7796.0 -0.0,1114.0 1127.7,1038.0 1795.8,1253.9 5284.3,1070.9 5285.5,1399.2 6556.0,1354.6 6556.0,6048.1 6099.8,6048.5 6104.3,6735.8 5263.4,6787.0 5270.2,7796.0 -0.0,7796.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0033/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.06111148833091,42.35075187988271]}},{"type":"Feature","properties":{"resourceCoords":[6556.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.05754229407039,42.35207112137057]}},{"type":"Feature","properties":{"resourceCoords":[6556.0,7796.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.05543448008888,42.34891227883963]}},{"type":"Feature","properties":{"resourceCoords":[0.0,7796.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.0590036743494,42.347593037351764]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0036/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Detroit, Michigan | 1950 | sanborn03985_052 p36","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T07:17:22Z","modified":"2026-09-21T07:17:22Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0036/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0036/info.json","type":"ImageService2","height":7796,"width":6532},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"5515.0,6467.2 -0.0,6601.1 -0.0,598.7 4467.5,565.1 4482.9,5908.7 5509.2,5883.8 5515.0,6467.2\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0036/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.04876672957401,42.35199604399063]}},{"type":"Feature","properties":{"resourceCoords":[6532.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.04702450898147,42.34926423044872]}},{"type":"Feature","properties":{"resourceCoords":[6532.0,7796.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.05140529388451,42.34771664878583]}},{"type":"Feature","properties":{"resourceCoords":[0.0,7796.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.05314751447706,42.35044846232774]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0037/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Detroit, Michigan | 1950 | sanborn03985_052 p37","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T07:17:22Z","modified":"2026-09-21T07:17:22Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0037/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0037/info.json","type":"ImageService2","height":7796,"width":6556},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"6556.0,926.6 6556.0,7482.2 5796.6,7518.0 5791.2,7796.0 751.2,7796.0 750.8,732.8 6556.0,926.6\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0037/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.04658718687328,42.355742619001944]}},{"type":"Feature","properties":{"resourceCoords":[6556.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.04480752487348,42.35308856932818]}},{"type":"Feature","properties":{"resourceCoords":[6556.0,7796.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.04904827859899,42.35151361018129]}},{"type":"Feature","properties":{"resourceCoords":[0.0,7796.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.0508279405988,42.35416765985506]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0038/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Detroit, Michigan | 1950 | sanborn03985_052 p38","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T07:17:22Z","modified":"2026-09-21T07:17:22Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0038/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0038/info.json","type":"ImageService2","height":7796,"width":6532},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"684.6,7557.4 551.9,281.3 6532.0,163.6 6532.0,2785.8 4958.6,2741.3 4963.8,7575.2 684.6,7557.4\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0038/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.04496053633142,42.35330457967306]}},{"type":"Feature","properties":{"resourceCoords":[6532.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.04327476403803,42.350671240877816]}},{"type":"Feature","properties":{"resourceCoords":[6532.0,7796.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.04749775505938,42.34917384442583]}},{"type":"Feature","properties":{"resourceCoords":[0.0,7796.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.04918352735277,42.35180718322107]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0039/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Detroit, Michigan | 1950 | sanborn03985_052 p39","metadata":[{"label":"streets","value":"8"},{"label":"intersections","value":"14"}],"created":"2026-09-21T07:17:22Z","modified":"2026-09-21T07:17:22Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0039/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0039/info.json","type":"ImageService2","height":7796,"width":6556},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"473.1,1727.0 6180.9,1855.5 6205.6,6954.1 572.5,7040.9 473.1,1727.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0039/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[6304.0,2464.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-83.041212,42.353314]}},{"type":"Feature","properties":{"resourceCoords":[3552.0,7004.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-83.0415215,42.3509285]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0004/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Detroit, Michigan | 1950 | sanborn03985_052 p4","metadata":[{"label":"streets","value":"9"},{"label":"intersections","value":"14"}],"created":"2026-09-21T07:17:22Z","modified":"2026-09-21T07:17:22Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0004/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0004/info.json","type":"ImageService2","height":7796,"width":6452},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"4104.1,7493.9 2332.6,7623.8 1618.4,7279.2 1809.5,7287.7 1570.0,3941.7 1842.6,3940.2 1804.7,529.8 1670.9,334.9 1888.2,356.2 1798.8,-0.0 6452.0,-0.0 6452.0,5203.5 5151.9,3406.0 5037.8,3408.1 4792.2,2908.6 3638.6,3746.7 4919.6,5605.3 5285.0,5586.2 6452.0,7103.7 6452.0,7321.8 6173.8,7342.2 5661.4,6639.0 4104.1,7493.9\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0004/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1052.0,3476.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-83.044567,42.337852]}},{"type":"Feature","properties":{"resourceCoords":[2356.0,5644.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-83.0454,42.336915]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0040/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Detroit, Michigan | 1950 | sanborn03985_052 p40","metadata":[{"label":"streets","value":"7"},{"label":"intersections","value":"6"}],"created":"2026-09-21T07:17:22Z","modified":"2026-09-21T07:17:22Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0040/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0040/info.json","type":"ImageService2","height":7796,"width":6532},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"137.9,7039.1 -0.0,7040.5 -0.0,982.3 376.8,967.5 375.4,1263.1 1739.7,958.9 6256.8,949.5 6258.2,7796.0 140.3,7796.0 137.9,7039.1\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0040/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[6256.0,5676.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-83.03698,42.353277]}},{"type":"Feature","properties":{"resourceCoords":[6256.0,2572.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-83.037819,42.354547]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0041/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Detroit, Michigan | 1950 | sanborn03985_052 p41","metadata":[{"label":"streets","value":"5"},{"label":"intersections","value":"5"}],"created":"2026-09-21T07:17:22Z","modified":"2026-09-21T07:17:22Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0041/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0041/info.json","type":"ImageService2","height":7796,"width":6556},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"594.8,6468.9 -0.0,6492.1 -0.0,837.4 6556.0,564.0 6556.0,6700.2 6518.4,6787.5 6525.4,7100.3 6276.0,7140.0 6297.8,7796.0 624.3,7796.0 594.8,6468.9\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0041/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[6276.0,7140.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-83.0415547,42.3538336]}},{"type":"Feature","properties":{"resourceCoords":[516.0,1864.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-83.04622,42.354956]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0042/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Detroit, Michigan | 1950 | sanborn03985_052 p42","metadata":[{"label":"streets","value":"8"},{"label":"intersections","value":"7"}],"created":"2026-09-21T07:17:22Z","modified":"2026-09-21T07:17:22Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0042/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0042/info.json","type":"ImageService2","height":7796,"width":6532},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"283.2,7104.0 -0.0,7114.8 324.5,7015.1 491.4,1107.3 1631.0,1100.0 1631.0,0.0 6227.7,0.0 6229.8,7090.9 1661.6,7096.5 281.4,7426.6 283.2,7104.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0042/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[6228.0,5448.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-83.038698,42.355875]}},{"type":"Feature","properties":{"resourceCoords":[6228.0,2152.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-83.03958,42.357207]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0043/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Detroit, Michigan | 1950 | sanborn03985_052 p43","metadata":[{"label":"streets","value":"7"},{"label":"intersections","value":"12"}],"created":"2026-09-21T07:17:22Z","modified":"2026-09-21T07:17:22Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0043/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0043/info.json","type":"ImageService2","height":7796,"width":6556},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1137.0,7100.6 883.6,5253.3 869.5,611.5 6556.0,606.2 6556.0,7098.7 1137.0,7100.6\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0043/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[6040.0,4284.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-83.037157,42.356439]}},{"type":"Feature","properties":{"resourceCoords":[4392.0,608.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-83.035582,42.357837]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0044/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Detroit, Michigan | 1950 | sanborn03985_052 p44","metadata":[{"label":"streets","value":"7"},{"label":"intersections","value":"12"}],"created":"2026-09-21T07:17:22Z","modified":"2026-09-21T07:17:22Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0044/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0044/info.json","type":"ImageService2","height":7796,"width":6532},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"5967.7,7180.7 1538.5,7166.7 1559.8,660.1 5965.4,672.8 5967.7,7180.7\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0044/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[2680.0,4344.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-83.036714,42.355773]}},{"type":"Feature","properties":{"resourceCoords":[2680.0,7168.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-83.0382571,42.355211]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0045/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Detroit, Michigan | 1950 | sanborn03985_052 p45","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T07:17:22Z","modified":"2026-09-21T07:17:22Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0045/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0045/info.json","type":"ImageService2","height":7796,"width":6556},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"5896.2,2025.5 5958.8,7796.0 -0.0,7796.0 -0.0,6018.3 728.9,6050.5 711.0,1808.5 5896.2,2025.5\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0045/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.06002992300054,42.356348109290785]}},{"type":"Feature","properties":{"resourceCoords":[6556.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.0581077101644,42.35378557646581]}},{"type":"Feature","properties":{"resourceCoords":[6556.0,7796.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.06220227374628,42.35208447953114]}},{"type":"Feature","properties":{"resourceCoords":[0.0,7796.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.06412448658241,42.35464701235612]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0046/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Detroit, Michigan | 1950 | sanborn03985_052 p46","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T07:17:22Z","modified":"2026-09-21T07:17:22Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0046/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0046/info.json","type":"ImageService2","height":7796,"width":6532},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"702.7,-0.0 6532.0,-0.0 6532.0,2295.9 6203.6,2285.5 6263.9,5780.5 6024.6,6441.0 6060.8,7571.4 6532.0,7588.0 6532.0,7796.0 908.5,7716.0 702.7,-0.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0046/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.05851796867275,42.35433963374771]}},{"type":"Feature","properties":{"resourceCoords":[6532.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.0566291733745,42.35174257278492]}},{"type":"Feature","properties":{"resourceCoords":[6532.0,7796.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.06079402124291,42.35006485385912]}},{"type":"Feature","properties":{"resourceCoords":[0.0,7796.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.06268281654116,42.35266191482191]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0047/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Detroit, Michigan | 1950 | sanborn03985_052 p47","metadata":[{"label":"streets","value":"5"},{"label":"intersections","value":"0"}],"created":"2026-09-21T07:17:22Z","modified":"2026-09-21T07:17:22Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0047/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0047/info.json","type":"ImageService2","height":7796,"width":6556},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"5923.2,1581.2 6556.0,1608.4 6556.0,5448.2 5863.5,5435.5 5908.0,7424.1 -0.0,7134.5 0.0,0.0 6012.9,-0.0 5923.2,1581.2\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0047/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.0571677,42.3575835]}},{"type":"Feature","properties":{"resourceCoords":[6556.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.0551996,42.3549923]}},{"type":"Feature","properties":{"resourceCoords":[6556.0,7796.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.0593694,42.353262900000004]}},{"type":"Feature","properties":{"resourceCoords":[0.0,7796.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.0613375,42.3558541]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0049/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Detroit, Michigan | 1950 | sanborn03985_052 p49","metadata":[{"label":"streets","value":"3"},{"label":"intersections","value":"1"}],"created":"2026-09-21T07:17:22Z","modified":"2026-09-21T07:17:22Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0049/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0049/info.json","type":"ImageService2","height":7796,"width":6556},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"-0.0,193.3 6556.0,285.9 6556.0,7784.0 5886.6,7784.0 5909.2,6150.0 -0.0,6447.2 -0.0,193.3\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0049/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.05361979006737,42.358848919493646]}},{"type":"Feature","properties":{"resourceCoords":[6556.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.05181216606036,42.35620914418929]}},{"type":"Feature","properties":{"resourceCoords":[6556.0,7796.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.05605727620134,42.3546196758902]}},{"type":"Feature","properties":{"resourceCoords":[0.0,7796.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.05786490020836,42.35725945119455]}},{"type":"Feature","properties":{"resourceCoords":[5924.0,4332.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-83.0543453,42.3555804]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0005/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Detroit, Michigan | 1950 | sanborn03985_052 p5","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T07:17:22Z","modified":"2026-09-21T07:17:22Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0005/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0005/info.json","type":"ImageService2","height":7796,"width":6560},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"-0.0,-0.0 1117.4,0.0 1086.8,2210.7 2396.2,2236.9 2344.1,5505.9 5182.6,7796.0 -0.0,7796.0 -0.0,-0.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0005/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.05329062042757,42.33842552573457]}},{"type":"Feature","properties":{"resourceCoords":[6560.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.04992778671112,42.33993586347057]}},{"type":"Feature","properties":{"resourceCoords":[6560.0,7796.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.04751658652388,42.33696089628342]}},{"type":"Feature","properties":{"resourceCoords":[0.0,7796.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.05087942024034,42.33545055854742]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0050/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Detroit, Michigan | 1950 | sanborn03985_052 p50","metadata":[{"label":"streets","value":"2"},{"label":"intersections","value":"1"}],"created":"2026-09-21T07:17:22Z","modified":"2026-09-21T07:17:22Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0050/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0050/info.json","type":"ImageService2","height":7796,"width":6532},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"6532.0,369.6 6532.0,7796.0 1016.0,7796.0 1016.0,297.9 6532.0,369.6\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0050/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.05208576386214,42.35662068347492]}},{"type":"Feature","properties":{"resourceCoords":[6532.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.05028475714862,42.35399057177754]}},{"type":"Feature","properties":{"resourceCoords":[6532.0,7796.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.0545298672896,42.35240110347844]}},{"type":"Feature","properties":{"resourceCoords":[0.0,7796.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.05633087400312,42.35503121517583]}},{"type":"Feature","properties":{"resourceCoords":[384.0,4344.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-83.0543453,42.3555804]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0051/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Detroit, Michigan | 1950 | sanborn03985_052 p51","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T07:17:22Z","modified":"2026-09-21T07:17:22Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0051/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0051/info.json","type":"ImageService2","height":7796,"width":6556},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"5887.0,7585.9 -0.0,7545.0 -0.0,5587.5 700.3,5603.3 746.8,123.1 5986.2,178.1 5887.0,7585.9\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0051/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.04964901305638,42.36026028693833]}},{"type":"Feature","properties":{"resourceCoords":[6556.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.04787867816682,42.35764552281265]}},{"type":"Feature","properties":{"resourceCoords":[6556.0,7796.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.0520569641008,42.35607893205314]}},{"type":"Feature","properties":{"resourceCoords":[0.0,7796.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.05382729899036,42.35869369617881]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0052/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Detroit, Michigan | 1950 | sanborn03985_052 p52","metadata":[{"label":"streets","value":"4"},{"label":"intersections","value":"1"}],"created":"2026-09-21T07:17:22Z","modified":"2026-09-21T07:17:22Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0052/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0052/info.json","type":"ImageService2","height":7796,"width":6532},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"353.4,7536.8 434.9,1116.0 6474.0,1116.0 6532.0,7796.0 6454.5,7613.3 353.4,7536.8\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0052/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.04811741239433,42.358065520454915]}},{"type":"Feature","properties":{"resourceCoords":[6532.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.04631805913846,42.35543479002137]}},{"type":"Feature","properties":{"resourceCoords":[6532.0,7796.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.05056416794545,42.35384678097198]}},{"type":"Feature","properties":{"resourceCoords":[0.0,7796.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.05236352120133,42.35647751140552]}},{"type":"Feature","properties":{"resourceCoords":[444.0,244.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-83.048128,42.357837]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0053/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Detroit, Michigan | 1950 | sanborn03985_052 p53","metadata":[{"label":"streets","value":"4"},{"label":"intersections","value":"3"}],"created":"2026-09-21T07:17:22Z","modified":"2026-09-21T07:17:22Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0053/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0053/info.json","type":"ImageService2","height":7796,"width":6556},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"6052.0,6876.0 -0.0,6873.2 -0.0,0.0 6020.1,-0.0 6052.0,6876.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0053/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[820.0,6876.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-83.0495133,42.3599377]}},{"type":"Feature","properties":{"resourceCoords":[6052.0,6876.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-83.048128,42.357837]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0054/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Detroit, Michigan | 1950 | sanborn03985_052 p54","metadata":[{"label":"streets","value":"3"},{"label":"intersections","value":"1"}],"created":"2026-09-21T07:17:22Z","modified":"2026-09-21T07:17:22Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0054/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0054/info.json","type":"ImageService2","height":7796,"width":6532},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"492.9,7796.0 574.8,-0.0 6532.0,-0.0 6532.0,7796.0 492.9,7796.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0054/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.04449511259013,42.35944956469011]}},{"type":"Feature","properties":{"resourceCoords":[6532.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.04269575933425,42.356818834256565]}},{"type":"Feature","properties":{"resourceCoords":[6532.0,7796.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.04694186814125,42.35523082520717]}},{"type":"Feature","properties":{"resourceCoords":[0.0,7796.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.04874122139712,42.35786155564072]}},{"type":"Feature","properties":{"resourceCoords":[504.0,6924.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-83.048128,42.357837]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0055/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Detroit, Michigan | 1950 | sanborn03985_052 p55","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T07:17:22Z","modified":"2026-09-21T07:17:22Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0055/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0055/info.json","type":"ImageService2","height":7796,"width":6556},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"647.2,-0.0 5896.2,-0.0 5920.8,5985.9 -0.0,6021.2 -0.0,763.2 650.8,759.2 647.2,-0.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0055/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.04272219008949,42.36271774659821]}},{"type":"Feature","properties":{"resourceCoords":[6556.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.04102030421082,42.36009751075423]}},{"type":"Feature","properties":{"resourceCoords":[6556.0,7796.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.04520749622775,42.35859154979978]}},{"type":"Feature","properties":{"resourceCoords":[0.0,7796.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.04690938210642,42.36121178564376]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0056/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Detroit, Michigan | 1950 | sanborn03985_052 p56","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T07:17:22Z","modified":"2026-09-21T07:17:22Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0056/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0056/info.json","type":"ImageService2","height":7796,"width":6532},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"5481.8,693.5 5452.9,5222.4 6532.0,5223.3 6532.0,6346.0 6123.6,6334.1 6118.4,5593.2 260.2,5664.3 282.0,690.7 5481.8,693.5\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0056/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.04127169866491,42.36047770646956]}},{"type":"Feature","properties":{"resourceCoords":[6532.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.03948585005965,42.357786347066344]}},{"type":"Feature","properties":{"resourceCoords":[6532.0,7796.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.04380234389824,42.35620022531988]}},{"type":"Feature","properties":{"resourceCoords":[0.0,7796.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.0455881925035,42.3588915847231]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0057/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Detroit, Michigan | 1950 | sanborn03985_052 p57","metadata":[{"label":"streets","value":"7"},{"label":"intersections","value":"14"}],"created":"2026-09-21T07:17:22Z","modified":"2026-09-21T07:17:22Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0057/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0057/info.json","type":"ImageService2","height":7796,"width":6556},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"680.9,578.9 5943.4,600.2 5930.6,6506.5 669.5,6442.3 680.9,578.9\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0057/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[3308.0,4344.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-83.040728,42.361825]}},{"type":"Feature","properties":{"resourceCoords":[668.0,7200.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-83.042961,42.362311]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0058/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Detroit, Michigan | 1950 | sanborn03985_052 p58","metadata":[{"label":"streets","value":"7"},{"label":"intersections","value":"12"}],"created":"2026-09-21T07:17:22Z","modified":"2026-09-21T07:17:22Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0058/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0058/info.json","type":"ImageService2","height":7796,"width":6532},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"338.0,634.5 5941.9,638.3 5949.8,5325.6 6203.1,7191.4 347.7,7187.5 338.0,634.5\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0058/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[2756.0,4352.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-83.039394,42.359813]}},{"type":"Feature","properties":{"resourceCoords":[5952.0,4352.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-83.038543,42.358531]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0059/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Detroit, Michigan | 1950 | sanborn03985_052 p59","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"7"}],"created":"2026-09-21T07:17:22Z","modified":"2026-09-21T07:17:22Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0059/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0059/info.json","type":"ImageService2","height":7796,"width":6516},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"5923.7,-0.0 5926.4,5732.3 712.0,5728.0 709.3,1971.9 708.0,1069.2 -0.0,1114.1 -0.0,0.0 5923.7,-0.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0059/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[3320.0,1972.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-83.036675,42.363299]}},{"type":"Feature","properties":{"resourceCoords":[712.0,5728.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-83.039406,42.363605]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0006/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Detroit, Michigan | 1950 | sanborn03985_052 p6","metadata":[{"label":"streets","value":"4"},{"label":"intersections","value":"4"}],"created":"2026-09-21T07:17:22Z","modified":"2026-09-21T07:17:22Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0006/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0006/info.json","type":"ImageService2","height":7796,"width":6452},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"560.7,6729.6 -0.0,6910.8 -0.0,2046.8 1970.1,2042.2 1981.5,0.0 6452.0,0.0 6452.0,4529.1 4531.8,4534.7 4553.2,5602.8 3314.9,7796.0 1188.4,7796.0 560.7,6729.6\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0006/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1988.0,2932.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-83.0500278,42.338228]}},{"type":"Feature","properties":{"resourceCoords":[1988.0,4588.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-83.049514,42.3375706]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0060/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Detroit, Michigan | 1950 | sanborn03985_052 p60","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"8"}],"created":"2026-09-21T07:17:22Z","modified":"2026-09-21T07:17:22Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0060/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0060/info.json","type":"ImageService2","height":7796,"width":6532},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"6080.5,-0.0 6079.8,5733.2 490.5,5719.0 496.1,-0.0 6080.5,-0.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0060/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[4488.0,5728.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-83.036953,42.359906]}},{"type":"Feature","properties":{"resourceCoords":[4488.0,1988.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-83.034918,42.360647]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0061/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Detroit, Michigan | 1950 | sanborn03985_052 p61","metadata":[{"label":"streets","value":"7"},{"label":"intersections","value":"8"}],"created":"2026-09-21T07:17:22Z","modified":"2026-09-21T07:17:22Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0061/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0061/info.json","type":"ImageService2","height":7796,"width":6516},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"828.3,5775.0 901.9,41.9 6101.8,-0.0 6070.9,2126.9 6516.0,2134.5 6516.0,5859.1 828.3,5775.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0061/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[4376.0,5828.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-83.035582,42.357837]}},{"type":"Feature","properties":{"resourceCoords":[2760.0,2076.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-83.033998,42.359245]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0062/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Detroit, Michigan | 1950 | sanborn03985_052 p62","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"8"}],"created":"2026-09-21T07:17:22Z","modified":"2026-09-21T07:17:22Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0062/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0062/info.json","type":"ImageService2","height":7796,"width":6532},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"5946.1,5894.1 1476.2,5892.8 1418.5,2166.6 973.1,2166.0 971.0,37.7 6532.0,-0.0 6532.0,740.4 5931.6,737.0 5946.1,5894.1\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0062/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[4280.0,2168.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-83.032235,42.356581]}},{"type":"Feature","properties":{"resourceCoords":[988.0,5896.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-83.035141,42.357172]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0063/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Detroit, Michigan | 1950 | sanborn03985_052 p63","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T07:17:22Z","modified":"2026-09-21T07:17:22Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0063/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0063/info.json","type":"ImageService2","height":7796,"width":6516},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"-0.0,6725.3 -0.0,-0.0 5643.8,0.0 5612.4,1356.3 6516.0,1377.3 6516.0,2168.1 6052.1,2204.5 5859.8,6607.7 4515.7,6612.3 4473.8,7408.6 4123.4,7419.3 286.5,7443.7 315.3,6724.0 -0.0,6725.3\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0063/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.06534142583578,42.357634262493164]}},{"type":"Feature","properties":{"resourceCoords":[6516.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.06186648121086,42.35906391576529]}},{"type":"Feature","properties":{"resourceCoords":[6516.0,7796.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.05956797970788,42.355969951250344]}},{"type":"Feature","properties":{"resourceCoords":[0.0,7796.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.0630429243328,42.35454029797822]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0064/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Detroit, Michigan | 1950 | sanborn03985_052 p64","metadata":[{"label":"streets","value":"5"},{"label":"intersections","value":"5"}],"created":"2026-09-21T07:17:22Z","modified":"2026-09-21T07:17:22Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0064/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0064/info.json","type":"ImageService2","height":7796,"width":6548},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"-0.0,2264.4 504.4,2199.3 466.7,1333.0 5234.4,1208.5 5141.5,6826.8 -0.0,7098.9 -0.0,2264.4\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0064/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[3220.0,4900.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-83.059199,42.3577]}},{"type":"Feature","properties":{"resourceCoords":[3220.0,2304.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-83.059841,42.358661]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0065/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Detroit, Michigan | 1950 | sanborn03985_052 p65","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T07:17:22Z","modified":"2026-09-21T07:17:22Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0065/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0065/info.json","type":"ImageService2","height":7796,"width":6516},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"-0.0,6414.0 -0.0,1458.4 905.4,1459.0 935.8,965.5 4991.0,976.7 4926.5,2132.3 5739.2,2160.9 5573.5,6497.2 -0.0,6414.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0065/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.06719618209547,42.36016038951873]}},{"type":"Feature","properties":{"resourceCoords":[6516.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.06378542016493,42.361613535702695]}},{"type":"Feature","properties":{"resourceCoords":[6516.0,7796.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.06144905372125,42.358576840087935]}},{"type":"Feature","properties":{"resourceCoords":[0.0,7796.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.06485981565179,42.35712369390397]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0066/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Detroit, Michigan | 1950 | sanborn03985_052 p66","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T07:17:22Z","modified":"2026-09-21T07:17:22Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0066/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0066/info.json","type":"ImageService2","height":7796,"width":6548},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"-0.0,7796.0 -0.0,1959.7 3554.6,2045.8 3580.9,864.9 5784.6,925.7 5621.8,4193.9 5542.0,4331.8 5219.2,4360.3 5189.8,5680.0 5663.3,5924.2 5607.3,7796.0 -0.0,7796.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0066/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.0641567258916,42.36146989176665]}},{"type":"Feature","properties":{"resourceCoords":[6548.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.0606097052246,42.36285005134086]}},{"type":"Feature","properties":{"resourceCoords":[6548.0,7796.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.05840148678027,42.35970753671406]}},{"type":"Feature","properties":{"resourceCoords":[0.0,7796.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.06194850744727,42.35832737713986]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0067/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Detroit, Michigan | 1950 | sanborn03985_052 p67","metadata":[{"label":"streets","value":"4"},{"label":"intersections","value":"7"}],"created":"2026-09-21T07:17:22Z","modified":"2026-09-21T07:17:22Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0067/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0067/info.json","type":"ImageService2","height":7796,"width":6516},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"3604.7,7311.5 3370.2,7796.0 2029.0,7796.0 1990.9,7470.2 1848.6,7392.6 807.6,7389.7 804.0,4260.0 -0.0,4251.5 -0.0,328.7 1066.2,324.5 1055.9,-0.0 6250.6,-0.0 6251.7,294.4 6516.0,296.4 6516.0,6469.2 6270.2,6469.6 6313.1,7695.6 5894.7,7689.4 5868.0,7318.8 3604.7,7311.5\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0067/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[804.0,4260.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-83.0585011,42.3620011]}},{"type":"Feature","properties":{"resourceCoords":[804.0,7344.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-83.0601759,42.3613931]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0068/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Detroit, Michigan | 1950 | sanborn03985_052 p68","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T07:17:22Z","modified":"2026-09-21T07:17:22Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0068/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0068/info.json","type":"ImageService2","height":7796,"width":6548},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"5139.2,7796.0 15.5,7796.0 2.3,7441.2 358.3,7428.8 388.0,7796.0 801.3,7796.0 747.8,6580.7 990.5,6576.7 934.3,454.4 685.4,456.5 678.7,-0.0 5201.7,-0.0 5210.9,419.1 5058.3,420.3 5139.2,7796.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0068/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.0548196018105,42.36096149278711]}},{"type":"Feature","properties":{"resourceCoords":[6548.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.05310344695741,42.35828185557649]}},{"type":"Feature","properties":{"resourceCoords":[6548.0,7796.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.05739067393816,42.35676136996409]}},{"type":"Feature","properties":{"resourceCoords":[0.0,7796.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.05910682879124,42.35944100717471]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0069/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Detroit, Michigan | 1950 | sanborn03985_052 p69","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T07:17:22Z","modified":"2026-09-21T07:17:22Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0069/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0069/info.json","type":"ImageService2","height":7796,"width":6500},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"6050.6,170.3 6077.5,-0.0 6500.0,-0.0 6498.2,7213.7 1384.4,7255.5 1395.4,7576.2 -0.0,7588.0 -0.0,209.8 6050.6,170.3\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0069/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.05249924343342,42.3647456489833]}},{"type":"Feature","properties":{"resourceCoords":[6500.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.05076659621231,42.36208556879622]}},{"type":"Feature","properties":{"resourceCoords":[6500.0,7796.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.05505420587046,42.36053922312864]}},{"type":"Feature","properties":{"resourceCoords":[0.0,7796.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.05678685309157,42.363199303315724]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0007/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Detroit, Michigan | 1950 | sanborn03985_052 p7","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T07:17:22Z","modified":"2026-09-21T07:17:22Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0007/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0007/info.json","type":"ImageService2","height":7796,"width":6560},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"-0.0,6180.8 722.4,4871.2 689.2,3790.2 949.4,3788.4 2708.6,3775.8 2600.1,0.0 6560.0,0.0 6560.0,5752.7 5567.2,5669.2 5449.0,7796.0 1686.1,7796.0 1706.8,7610.1 1600.8,7796.0 -0.0,7796.0 -0.0,6180.8\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0007/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.04966976778034,42.33951601491894]}},{"type":"Feature","properties":{"resourceCoords":[6560.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.04619281624463,42.34098542144557]}},{"type":"Feature","properties":{"resourceCoords":[6560.0,7796.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.04384692196922,42.337909550226684]}},{"type":"Feature","properties":{"resourceCoords":[0.0,7796.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.04732387350494,42.33644014370005]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0070/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Detroit, Michigan | 1950 | sanborn03985_052 p70","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T07:17:22Z","modified":"2026-09-21T07:17:22Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0070/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0070/info.json","type":"ImageService2","height":7796,"width":6548},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"5857.2,197.8 5909.7,5624.5 5216.0,5621.4 5243.3,7122.6 696.9,7105.2 622.6,165.0 215.1,175.6 242.4,-0.0 5043.6,-0.0 5044.0,192.7 5857.2,197.8\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0070/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.05094475772263,42.36235657121755]}},{"type":"Feature","properties":{"resourceCoords":[6548.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.04922374163925,42.359695662756465]}},{"type":"Feature","properties":{"resourceCoords":[6548.0,7796.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.05348110004839,42.35817090458432]}},{"type":"Feature","properties":{"resourceCoords":[0.0,7796.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.05520211613177,42.36083181304541]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0071/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Detroit, Michigan | 1950 | sanborn03985_052 p71","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"6"}],"created":"2026-09-21T07:17:22Z","modified":"2026-09-21T07:17:22Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0071/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0071/info.json","type":"ImageService2","height":7796,"width":6500},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"457.7,1837.2 5799.5,1784.2 5806.6,2233.0 6500.0,2288.3 6500.0,6518.8 484.4,6602.2 457.7,1837.2\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0071/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[296.0,2216.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-83.0508712,42.3620713]}},{"type":"Feature","properties":{"resourceCoords":[296.0,7412.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-83.0495133,42.3599377]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0072/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Detroit, Michigan | 1950 | sanborn03985_052 p72","metadata":[{"label":"streets","value":"7"},{"label":"intersections","value":"8"}],"created":"2026-09-21T07:17:22Z","modified":"2026-09-21T07:17:22Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0072/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0072/info.json","type":"ImageService2","height":7796,"width":6548},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"628.7,6601.9 695.9,2351.0 -0.0,2284.4 -0.0,1833.4 6329.9,1902.7 6321.2,6757.1 1181.3,6744.9 1181.6,6603.0 628.7,6601.9\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0072/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[6320.0,464.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-83.044824,42.365122]}},{"type":"Feature","properties":{"resourceCoords":[6320.0,7396.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-83.042961,42.362311]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0073/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Detroit, Michigan | 1950 | sanborn03985_052 p73","metadata":[{"label":"streets","value":"7"},{"label":"intersections","value":"9"}],"created":"2026-09-21T07:17:22Z","modified":"2026-09-21T07:17:22Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0073/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0073/info.json","type":"ImageService2","height":7796,"width":6500},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"458.9,7416.3 484.0,412.0 6500.0,419.4 6500.0,7424.7 458.9,7416.3\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0073/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[3328.0,412.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-83.043282,42.365685]}},{"type":"Feature","properties":{"resourceCoords":[484.0,412.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-83.044824,42.365122]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0074/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Detroit, Michigan | 1950 | sanborn03985_052 p74","metadata":[{"label":"streets","value":"7"},{"label":"intersections","value":"10"}],"created":"2026-09-21T07:17:22Z","modified":"2026-09-21T07:17:22Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0074/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0074/info.json","type":"ImageService2","height":7796,"width":6548},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1494.9,7362.6 1465.3,447.4 5539.3,435.0 5905.8,433.7 6548.0,431.0 6548.0,7348.0 1494.9,7362.6\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0074/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[2000.0,4788.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-83.040098,42.364651]}},{"type":"Feature","properties":{"resourceCoords":[2000.0,7360.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-83.039406,42.363605]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0075/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Detroit, Michigan | 1950 | sanborn03985_052 p75","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T07:17:22Z","modified":"2026-09-21T07:17:22Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0075/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0075/info.json","type":"ImageService2","height":7796,"width":6500},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"234.1,0.0 263.5,1398.1 1492.8,1560.2 5816.6,1425.6 5683.4,7587.2 5806.1,7796.0 4989.7,7796.0 5013.6,6634.1 944.3,6766.1 931.2,7262.3 22.7,7293.6 -0.0,-0.0 234.1,0.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0075/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.06881330339439,42.36247236364226]}},{"type":"Feature","properties":{"resourceCoords":[6500.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.06535841013961,42.363826586200126]}},{"type":"Feature","properties":{"resourceCoords":[6500.0,7796.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.06317565614943,42.36074313674201]}},{"type":"Feature","properties":{"resourceCoords":[0.0,7796.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.06663054940421,42.359388914184144]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0076/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Detroit, Michigan | 1950 | sanborn03985_052 p76","metadata":[{"label":"streets","value":"5"},{"label":"intersections","value":"6"}],"created":"2026-09-21T07:17:22Z","modified":"2026-09-21T07:17:22Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0076/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0076/info.json","type":"ImageService2","height":7796,"width":6548},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"3697.6,6604.5 3693.3,7796.0 -0.0,7796.0 -0.0,1686.2 5941.5,1463.1 5912.0,6612.0 3697.6,6604.5\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0076/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[3732.0,1468.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-83.063344,42.363955]}},{"type":"Feature","properties":{"resourceCoords":[5912.0,6612.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-83.060761,42.362316]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0077/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Detroit, Michigan | 1950 | sanborn03985_052 p77","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T07:17:22Z","modified":"2026-09-21T07:17:22Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0077/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0077/info.json","type":"ImageService2","height":7796,"width":6500},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1017.0,1197.4 5758.5,1097.0 5789.1,6303.8 1226.8,6349.5 -0.0,6161.5 -0.0,-0.0 320.7,0.0 244.5,1441.6 1013.7,1424.7 1017.0,1197.4\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0077/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.07007370904311,42.36438165601106]}},{"type":"Feature","properties":{"resourceCoords":[6500.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.06666069227711,42.36578823875128]}},{"type":"Feature","properties":{"resourceCoords":[6500.0,7796.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.06439347295218,42.36274225825186]}},{"type":"Feature","properties":{"resourceCoords":[0.0,7796.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.06780648971818,42.36133567551165]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0078/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Detroit, Michigan | 1950 | sanborn03985_052 p78","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T07:17:22Z","modified":"2026-09-21T07:17:22Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0078/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0078/info.json","type":"ImageService2","height":7796,"width":6548},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"5754.6,6420.5 -0.0,6320.2 -0.0,1148.0 6548.0,1299.4 6548.0,1416.9 5586.6,1363.6 5519.4,2711.6 5977.9,2737.7 5754.6,6420.5\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0078/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.06707067424549,42.36564925807399]}},{"type":"Feature","properties":{"resourceCoords":[6548.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.06362062437044,42.36709083014809]}},{"type":"Feature","properties":{"resourceCoords":[6548.0,7796.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.06131399188318,42.364034433962516]}},{"type":"Feature","properties":{"resourceCoords":[0.0,7796.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.06476404175822,42.36259286188841]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0079/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Detroit, Michigan | 1950 | sanborn03985_052 p79","metadata":[{"label":"streets","value":"5"},{"label":"intersections","value":"4"}],"created":"2026-09-21T07:17:22Z","modified":"2026-09-21T07:17:22Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0079/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0079/info.json","type":"ImageService2","height":7796,"width":6512},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"6006.5,7377.9 1357.9,7336.2 1357.2,7796.0 -0.0,7796.0 -0.0,740.6 6094.4,659.1 6006.5,7377.9\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0079/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[5068.0,4288.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-83.060466,42.36501]}},{"type":"Feature","properties":{"resourceCoords":[5068.0,7376.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-83.062139,42.364399]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0008/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Detroit, Michigan | 1950 | sanborn03985_052 p8","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T07:17:22Z","modified":"2026-09-21T07:17:22Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0008/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0008/info.json","type":"ImageService2","height":7796,"width":6476},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"6182.8,7330.8 4064.6,7340.5 4088.2,6350.1 -0.0,6596.1 -0.0,0.0 6476.0,-0.0 6476.0,4286.4 6347.9,4273.1 6476.0,4464.2 6476.0,7796.0 6210.8,7796.0 6182.8,7330.8\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0008/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.04207181184157,42.34166648280022]}},{"type":"Feature","properties":{"resourceCoords":[6476.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.04032312682557,42.339014132357775]}},{"type":"Feature","properties":{"resourceCoords":[6476.0,7796.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.04461255748305,42.337447118551864]}},{"type":"Feature","properties":{"resourceCoords":[0.0,7796.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.04636124249905,42.34009946899431]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0080/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Detroit, Michigan | 1950 | sanborn03985_052 p80","metadata":[{"label":"streets","value":"5"},{"label":"intersections","value":"8"}],"created":"2026-09-21T07:17:22Z","modified":"2026-09-21T07:17:22Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0080/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0080/info.json","type":"ImageService2","height":7796,"width":6548},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"5577.9,623.2 5621.7,4284.1 6416.0,4284.0 6452.5,7350.1 -0.0,7349.1 -0.0,860.5 5577.9,623.2\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0080/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[4168.0,4284.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-83.059095,42.362919]}},{"type":"Feature","properties":{"resourceCoords":[6416.0,4284.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-83.0585011,42.3620011]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0081/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Detroit, Michigan | 1950 | sanborn03985_052 p81","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"7"}],"created":"2026-09-21T07:17:22Z","modified":"2026-09-21T07:17:22Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0081/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0081/info.json","type":"ImageService2","height":7796,"width":6512},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"5908.1,7796.0 -0.0,7796.0 112.0,272.0 6512.0,223.3 6512.0,7611.0 5908.1,7796.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0081/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[5140.0,2816.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-83.055761,42.366724]}},{"type":"Feature","properties":{"resourceCoords":[112.0,272.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-83.0557297,42.3693161]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0082/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Detroit, Michigan | 1950 | sanborn03985_052 p82","metadata":[{"label":"streets","value":"5"},{"label":"intersections","value":"4"}],"created":"2026-09-21T07:17:22Z","modified":"2026-09-21T07:17:22Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0082/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0082/info.json","type":"ImageService2","height":7796,"width":6548},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"613.1,167.0 5419.4,316.9 5169.9,7571.1 5511.4,7585.6 5500.3,7796.0 3.3,7796.0 9.3,7654.9 398.7,7557.7 613.1,167.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0082/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1688.0,2800.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-83.055068,42.365683]}},{"type":"Feature","properties":{"resourceCoords":[4272.0,280.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-83.0529304,42.3651773]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0083/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Detroit, Michigan | 1950 | sanborn03985_052 p83","metadata":[{"label":"streets","value":"5"},{"label":"intersections","value":"7"}],"created":"2026-09-21T07:17:22Z","modified":"2026-09-21T07:17:22Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0083/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0083/info.json","type":"ImageService2","height":7796,"width":6512},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"794.1,7647.8 800.8,418.3 6512.0,420.2 6512.0,7670.1 794.1,7647.8\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0083/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[3392.0,4636.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-83.0512937,42.3657754]}},{"type":"Feature","properties":{"resourceCoords":[3392.0,7664.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-83.0529304,42.3651773]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0084/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Detroit, Michigan | 1950 | sanborn03985_052 p84","metadata":[{"label":"streets","value":"4"},{"label":"intersections","value":"3"}],"created":"2026-09-21T07:17:22Z","modified":"2026-09-21T07:17:22Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0084/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0084/info.json","type":"ImageService2","height":7796,"width":6548},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"2232.2,508.3 6548.0,528.8 6466.1,7709.8 2233.5,7684.0 2232.2,508.3\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0084/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1412.0,4676.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-83.050695,42.36485]}},{"type":"Feature","properties":{"resourceCoords":[5136.0,4676.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-83.0497008,42.363364]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0085/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Detroit, Michigan | 1950 | sanborn03985_052 p85","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"9"}],"created":"2026-09-21T07:17:22Z","modified":"2026-09-21T07:17:22Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0085/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0085/info.json","type":"ImageService2","height":7796,"width":6512},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"855.5,242.3 4252.7,256.0 4216.7,7796.0 829.5,7796.0 855.5,242.3\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0085/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[3436.0,3076.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-83.046425,42.367534]}},{"type":"Feature","properties":{"resourceCoords":[3436.0,252.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-83.044883,42.368097]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0086/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Detroit, Michigan | 1950 | sanborn03985_052 p86","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"7"}],"created":"2026-09-21T07:17:22Z","modified":"2026-09-21T07:17:22Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0086/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0086/info.json","type":"ImageService2","height":7796,"width":6548},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"6501.5,7795.5 -0.0,7722.5 -0.0,253.1 5104.7,242.5 5118.0,3040.0 6548.0,3028.5 6501.5,7795.5\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0086/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[5120.0,3040.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-83.044824,42.365122]}},{"type":"Feature","properties":{"resourceCoords":[1428.0,252.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-83.044279,42.367184]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0087/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Detroit, Michigan | 1950 | sanborn03985_052 p87","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"9"}],"created":"2026-09-21T07:17:22Z","modified":"2026-09-21T07:17:22Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0087/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0087/info.json","type":"ImageService2","height":7796,"width":6512},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"4116.2,-0.0 4121.0,7632.6 862.8,7623.3 863.2,58.0 4116.2,-0.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0087/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[3436.0,7632.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-83.044883,42.368097]}},{"type":"Feature","properties":{"resourceCoords":[3436.0,240.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-83.040834,42.369571]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0088/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Detroit, Michigan | 1950 | sanborn03985_052 p88","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"9"}],"created":"2026-09-21T07:17:22Z","modified":"2026-09-21T07:17:22Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0088/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0088/info.json","type":"ImageService2","height":7796,"width":6548},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"-0.0,7593.8 -0.0,0.0 5209.0,-0.0 5200.4,7605.3 -0.0,7593.8\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0088/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[3452.0,7604.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-83.04376,42.366402]}},{"type":"Feature","properties":{"resourceCoords":[3452.0,308.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-83.039712,42.367878]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0089/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Detroit, Michigan | 1950 | sanborn03985_052 p89","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T07:17:22Z","modified":"2026-09-21T07:17:22Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0089/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0089/info.json","type":"ImageService2","height":7796,"width":6472},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"765.9,6987.6 -0.0,7045.1 0.0,0.0 186.4,0.0 187.5,633.8 428.6,645.5 437.8,2307.7 740.5,2422.7 737.8,1076.1 5513.9,1021.4 5603.7,6402.7 757.2,6760.9 765.9,6987.6\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0089/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.07137999689066,42.366705576074885]}},{"type":"Feature","properties":{"resourceCoords":[6472.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.06788073147666,42.367972801863154]}},{"type":"Feature","properties":{"resourceCoords":[6472.0,7796.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.06582922511929,42.364836450841324]}},{"type":"Feature","properties":{"resourceCoords":[0.0,7796.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.06932849053328,42.363569225053055]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0009/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Detroit, Michigan | 1950 | sanborn03985_052 p9","metadata":[{"label":"streets","value":"8"},{"label":"intersections","value":"6"}],"created":"2026-09-21T07:17:22Z","modified":"2026-09-21T07:17:22Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0009/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0009/info.json","type":"ImageService2","height":7796,"width":6560},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"216.6,0.0 164.1,1304.1 1363.1,1298.2 1362.5,1264.5 5349.5,1274.8 5285.5,5757.0 3254.9,5752.3 3239.2,7796.0 -0.0,7796.0 -0.0,-0.0 216.6,0.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0009/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[3252.0,5620.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-83.0509837,42.3394422]}},{"type":"Feature","properties":{"resourceCoords":[5796.0,1276.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-83.0509717,42.3417484]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0090/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Detroit, Michigan | 1950 | sanborn03985_052 p90","metadata":[{"label":"streets","value":"4"},{"label":"intersections","value":"4"}],"created":"2026-09-21T07:17:22Z","modified":"2026-09-21T07:17:22Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0090/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0090/info.json","type":"ImageService2","height":7796,"width":6572},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"-0.0,1100.8 5831.3,1096.8 5794.7,6146.4 6572.0,6151.2 6572.0,6291.0 6295.2,6175.4 -0.0,6375.7 -0.0,1100.8\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0090/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[5788.0,3692.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-83.064197,42.367494]}},{"type":"Feature","properties":{"resourceCoords":[3616.0,1084.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-83.066112,42.368121]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0091/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Detroit, Michigan | 1950 | sanborn03985_052 p91","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T07:17:22Z","modified":"2026-09-21T07:17:22Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0091/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0091/info.json","type":"ImageService2","height":7796,"width":6512},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"247.8,7796.0 241.4,6131.4 -0.0,6119.3 -0.0,3328.4 4566.2,3269.4 4551.9,1501.4 5229.4,1496.9 5254.0,2088.7 5333.4,6516.4 550.3,6563.1 552.2,7796.0 247.8,7796.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0091/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.07272542546427,42.36894348127619]}},{"type":"Feature","properties":{"resourceCoords":[6512.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.06921242225792,42.370221123106184]}},{"type":"Feature","properties":{"resourceCoords":[6512.0,7796.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.06715668729179,42.36709190796787]}},{"type":"Feature","properties":{"resourceCoords":[0.0,7796.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.07066969049814,42.365814266137875]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0092/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Detroit, Michigan | 1950 | sanborn03985_052 p92","metadata":[{"label":"streets","value":"4"},{"label":"intersections","value":"5"}],"created":"2026-09-21T07:17:22Z","modified":"2026-09-21T07:17:22Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0092/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0092/info.json","type":"ImageService2","height":7796,"width":6588},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"0.0,-0.0 5999.2,0.0 5935.1,5858.2 6588.0,5866.7 6588.0,6516.3 37.9,6436.8 0.0,-0.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0092/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[3772.0,1508.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-83.067448,42.370131]}},{"type":"Feature","properties":{"resourceCoords":[5928.0,6508.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-83.0648839,42.3685637]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0093/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Detroit, Michigan | 1950 | sanborn03985_052 p93","metadata":[{"label":"streets","value":"4"},{"label":"intersections","value":"3"}],"created":"2026-09-21T07:17:22Z","modified":"2026-09-21T07:17:22Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0093/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0093/info.json","type":"ImageService2","height":7796,"width":6512},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"6512.0,548.5 6512.0,7462.0 603.3,7474.0 607.5,7796.0 404.2,7796.0 431.0,535.4 6512.0,548.5\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0093/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[404.0,4392.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-83.065035,42.371887]}},{"type":"Feature","properties":{"resourceCoords":[404.0,7472.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-83.066709,42.371275]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0094/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Detroit, Michigan | 1950 | sanborn03985_052 p94","metadata":[{"label":"streets","value":"5"},{"label":"intersections","value":"6"}],"created":"2026-09-21T07:17:22Z","modified":"2026-09-21T07:17:22Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0094/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0094/info.json","type":"ImageService2","height":7796,"width":6612},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"6612.0,870.7 6583.7,7400.0 1486.8,7372.6 1485.4,6713.1 836.4,6722.7 826.2,725.1 1473.1,740.5 1472.6,525.9 4112.0,536.0 4111.9,803.4 6612.0,870.7\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0094/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[4112.0,4356.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-83.062519,42.368102]}},{"type":"Feature","properties":{"resourceCoords":[4112.0,536.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-83.060423,42.368865]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0095/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Detroit, Michigan | 1950 | sanborn03985_052 p95","metadata":[{"label":"streets","value":"5"},{"label":"intersections","value":"3"}],"created":"2026-09-21T07:17:22Z","modified":"2026-09-21T07:17:22Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0095/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0095/info.json","type":"ImageService2","height":7796,"width":6512},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"193.7,7638.8 131.9,182.0 -0.0,148.8 6512.0,188.5 6512.0,7638.7 193.7,7638.8\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0095/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[3396.0,184.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-83.058076,42.372827]}},{"type":"Feature","properties":{"resourceCoords":[1768.0,184.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-83.058507,42.373474]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0096/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Detroit, Michigan | 1950 | sanborn03985_052 p96","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T07:17:22Z","modified":"2026-09-21T07:17:22Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0096/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0096/info.json","type":"ImageService2","height":7796,"width":6612},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"4092.2,7528.3 1461.7,7581.3 1466.1,7796.0 821.2,7796.0 817.1,7596.4 984.8,7592.4 856.6,439.4 1316.1,430.7 1312.9,274.0 6444.3,137.9 6484.9,7796.0 4097.0,7796.0 4092.2,7528.3\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0096/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.05731623022156,42.371993712467265]}},{"type":"Feature","properties":{"resourceCoords":[6612.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.05561018327866,42.36927360439967]}},{"type":"Feature","properties":{"resourceCoords":[6612.0,7796.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.0599208368525,42.367776982884216]}},{"type":"Feature","properties":{"resourceCoords":[0.0,7796.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.0616268837954,42.37049709095181]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0097/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Detroit, Michigan | 1950 | sanborn03985_052 p97","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T07:17:22Z","modified":"2026-09-21T07:17:22Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0097/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0097/info.json","type":"ImageService2","height":7796,"width":6512},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"0.0,-0.0 6296.2,-0.0 6234.6,7677.8 564.4,7578.2 -0.0,7796.0 0.0,-0.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0097/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.05560577705712,42.376919419193584]}},{"type":"Feature","properties":{"resourceCoords":[6512.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.05381942824725,42.37428153406323]}},{"type":"Feature","properties":{"resourceCoords":[6512.0,7796.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.05806426313003,42.372690511933556]}},{"type":"Feature","properties":{"resourceCoords":[0.0,7796.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.05985061193991,42.37532839706391]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0098/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Detroit, Michigan | 1950 | sanborn03985_052 p98","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T07:17:22Z","modified":"2026-09-21T07:17:22Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0098/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0098/info.json","type":"ImageService2","height":7796,"width":6612},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"212.7,-0.0 5640.6,-0.0 5677.0,7629.6 3759.7,7638.4 3759.9,7796.0 3297.9,7796.0 3298.0,7638.7 237.2,7650.5 212.7,-0.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0098/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.05396954777825,42.374442765547364]}},{"type":"Feature","properties":{"resourceCoords":[6612.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.05220429418986,42.37176159580215]}},{"type":"Feature","properties":{"resourceCoords":[6612.0,7796.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.0564533831798,42.37021308743111]}},{"type":"Feature","properties":{"resourceCoords":[0.0,7796.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.05821863676819,42.37289425717633]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0099/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Detroit, Michigan | 1950 | sanborn03985_052 p99","metadata":[{"label":"streets","value":"2"},{"label":"intersections","value":"1"}],"created":"2026-09-21T07:17:22Z","modified":"2026-09-21T07:17:22Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0099/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0099/info.json","type":"ImageService2","height":7796,"width":6512},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"6512.0,7650.8 -0.0,7675.6 0.0,-0.0 6512.0,-0.0 6512.0,7650.8\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114dm:g03985195003:03985_03_1950-0099/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.05242010473594,42.37217155316171]}},{"type":"Feature","properties":{"resourceCoords":[6512.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.05064602356885,42.36954153751475]}},{"type":"Feature","properties":{"resourceCoords":[6512.0,7796.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.05490401601185,42.36797102352727]}},{"type":"Feature","properties":{"resourceCoords":[0.0,7796.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.05667809717895,42.370601039174225]}},{"type":"Feature","properties":{"resourceCoords":[880.0,7680.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-83.056375,42.370269]}}]}}]}