{"id":"https://data.mapsnap.org/runs/v1.3/iiif/chronoscope/sanborn03909_004.main.iiif.json","type":"AnnotationPage","@context":["http://www.w3.org/ns/anno.jsonld"],"label":"Ann Arbor, Michigan | 1908 | mapsnap generated fit (2026-09-23)","creator":{"type":"Software","name":"mapsnap","homepage":"https://mapsnap.org"},"rights":"https://opendatacommons.org/licenses/odbl/1-0/","metadata":[{"label":"generated","value":"2026-09-23"},{"label":"run","value":"corpus-v1"},{"label":"pages","value":"41"},{"label":"placed","value":"26"},{"label":"unplaced","value":"15"},{"label":"fit sources","value":"georef-snap 14, georef 12"},{"label":"key map","value":"georeferenced"},{"label":"split sheets","value":"7 sheet(s) cut into 23 panels"},{"label":"unplaced pages","value":"p1 (tier 1, 42.28306,-83.74190 +/-286m); p15__3 (tier 1, 42.26929,-83.74474 +/-100m); p17 (tier 2, 42.27637,-83.74062 +/-100m); p19__3 (tier 2, 42.27360,-83.74298 +/-477m); p22__2 (tier 1, 42.28264,-83.73611 +/-100m); p22__3 (tier 1, 42.28319,-83.73615 +/-140m); p24__2 (tier 1, 42.28723,-83.74365 +/-105m); p24__3 (tier 1, 42.28825,-83.74404 +/-138m); p25__2 (tier 1, 42.28028,-83.75704 +/-100m); p9__2 (tier 1, 42.29225,-83.73572 +/-100m); p9__3 (tier 1, 42.27892,-83.74570 +/-100m); p9__4 (tier 1, 42.26554,-83.74463 +/-100m); p9__5 (tier 1, 42.27870,-83.74631 +/-100m); p9__6 (tier 1, 42.26359,-83.74357 +/-100m); p9__7 (tier 1, 42.26400,-83.74347 +/-116m)"}],"items":[{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114am:g039091908:03909_1908-0010/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Ann Arbor, Michigan | 1908 | sanborn03909_004 p10","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-23T03:21:43Z","modified":"2026-09-23T03:21:43Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114am:g039091908:03909_1908-0010/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114am:g039091908:03909_1908-0010","type":"ImageService3","width":1628,"height":1927},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"230.4,1887.2 211.2,200.3 236.1,0.0 1430.4,15.1 1545.6,1441.1 1628.0,1434.8 1628.0,1927.0 1580.2,1927.0 1571.7,1803.2 230.4,1887.2\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114am:g039091908:03909_1908-0010/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.74448903367706,42.28135545974948]}},{"type":"Feature","properties":{"resourceCoords":[1628.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.7404068330142,42.28120653615994]}},{"type":"Feature","properties":{"resourceCoords":[1628.0,1927.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.74064341426255,42.27760629035022]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1927.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.7447256149254,42.277755213939756]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114am:g039091908:03909_1908-0011/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Ann Arbor, Michigan | 1908 | sanborn03909_004 p11","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-23T03:21:43Z","modified":"2026-09-23T03:21:43Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114am:g039091908:03909_1908-0011/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114am:g039091908:03909_1908-0011","type":"ImageService3","width":1628,"height":1927},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"91.6,506.2 -0.0,477.0 1066.2,497.1 1064.5,0.0 1628.0,0.0 1628.0,1883.0 1568.0,1882.5 1567.7,1918.0 1261.7,1927.0 98.1,1927.0 91.6,506.2\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114am:g039091908:03909_1908-0011/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.74117034583792,42.282144848119536]}},{"type":"Feature","properties":{"resourceCoords":[1628.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.73705630259133,42.28222791375065]}},{"type":"Feature","properties":{"resourceCoords":[1628.0,1927.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.7369243419338,42.278599637223905]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1927.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.74103838518039,42.27851657159279]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114am:g039091908:03909_1908-0012/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Ann Arbor, Michigan | 1908 | sanborn03909_004 p12","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-23T03:21:43Z","modified":"2026-09-23T03:21:43Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114am:g039091908:03909_1908-0012/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114am:g039091908:03909_1908-0012","type":"ImageService3","width":1628,"height":1927},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1557.2,120.7 1548.9,1927.0 -0.0,1927.0 0.0,0.0 575.0,0.0 577.6,116.2 1557.2,120.7\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114am:g039091908:03909_1908-0012/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.75625976168459,42.27819276745237]}},{"type":"Feature","properties":{"resourceCoords":[1628.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.75218238508504,42.27825073525992]}},{"type":"Feature","properties":{"resourceCoords":[1628.0,1927.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.75209030140589,42.27465456979348]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1927.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.75616767800544,42.274596601985934]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114am:g039091908:03909_1908-0013/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Ann Arbor, Michigan | 1908 | sanborn03909_004 p13","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"8"}],"created":"2026-09-23T03:21:43Z","modified":"2026-09-23T03:21:43Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114am:g039091908:03909_1908-0013/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114am:g039091908:03909_1908-0013","type":"ImageService3","width":1628,"height":1927},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1068.5,1927.0 194.6,1896.8 175.7,1550.4 93.5,75.7 1562.3,56.6 1562.7,1768.0 1067.8,1795.7 1068.5,1927.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114am:g039091908:03909_1908-0013/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1062.0,1016.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-83.7500328,42.2762119]}},{"type":"Feature","properties":{"resourceCoords":[1062.0,60.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-83.7499348,42.2779786]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114am:g039091908:03909_1908-0014/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Ann Arbor, Michigan | 1908 | sanborn03909_004 p14","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-23T03:21:43Z","modified":"2026-09-23T03:21:43Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114am:g039091908:03909_1908-0014/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114am:g039091908:03909_1908-0014","type":"ImageService3","width":1628,"height":1927},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1628.0,1880.8 58.2,1879.6 58.9,63.8 1628.0,59.9 1628.0,1880.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114am:g039091908:03909_1908-0014/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.74397747713334,42.27791328826703]}},{"type":"Feature","properties":{"resourceCoords":[1628.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.74414285112216,42.27487864634529]}},{"type":"Feature","properties":{"resourceCoords":[1628.0,1927.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.74896348081582,42.27502450275241]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1927.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.748798106827,42.278059144674145]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114am:g039091908:03909_1908-0015__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Ann Arbor, Michigan | 1908 | sanborn03909_004 p15 [1]","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"7"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"6512.0"},{"label":"split_canvas_h","value":"7708.0"}],"created":"2026-09-23T03:21:43Z","modified":"2026-09-23T03:21:43Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114am:g039091908:03909_1908-0015__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114am:g039091908:03909_1908-0015","type":"ImageService3","width":1628,"height":1927},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1214.9,1927.0 1208.7,1448.7 1208.3,1422.4 1628.0,1415.3 1628.0,798.4 1033.9,800.0 1024.5,151.2 1023.4,43.1 334.8,0.1 205.8,1820.5 827.5,1927.0 1214.9,1927.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114am:g039091908:03909_1908-0015__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[714.0,1352.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-83.7476401,42.2741079]}},{"type":"Feature","properties":{"resourceCoords":[714.0,30.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-83.7443379,42.274181]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114am:g039091908:03909_1908-0015__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Ann Arbor, Michigan | 1908 | sanborn03909_004 p15 [2]","metadata":[{"label":"streets","value":"3"},{"label":"intersections","value":"3"},{"label":"split_canvas_x","value":"4092.0"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"2420.0"},{"label":"split_canvas_h","value":"3200.0"}],"created":"2026-09-23T03:21:43Z","modified":"2026-09-23T03:21:43Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114am:g039091908:03909_1908-0015__2/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114am:g039091908:03909_1908-0015","type":"ImageService3","width":1628,"height":1927},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1024.8,171.4 1031.9,660.4 1152.1,666.5 1144.7,799.7 1628.0,798.4 1628.0,258.5 1024.8,171.4\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114am:g039091908:03909_1908-0015__2/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1398.4,233.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-83.7490028,42.2740783]}},{"type":"Feature","properties":{"resourceCoords":[1398.4,673.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-83.7501172,42.2740661]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114am:g039091908:03909_1908-0016/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Ann Arbor, Michigan | 1908 | sanborn03909_004 p16","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"7"}],"created":"2026-09-23T03:21:43Z","modified":"2026-09-23T03:21:43Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114am:g039091908:03909_1908-0016/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114am:g039091908:03909_1908-0016","type":"ImageService3","width":1628,"height":1927},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1532.0,74.0 1532.8,198.1 1580.2,201.0 1592.5,0.0 1628.0,0.0 1628.0,1625.5 1543.4,1625.6 1543.7,1927.0 105.4,1923.9 197.3,75.5 1532.0,74.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114am:g039091908:03909_1908-0016/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[565.0,74.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-83.7432136,42.2778198]}},{"type":"Feature","properties":{"resourceCoords":[1532.0,74.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-83.7407694,42.2778427]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114am:g039091908:03909_1908-0018/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Ann Arbor, Michigan | 1908 | sanborn03909_004 p18","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-23T03:21:43Z","modified":"2026-09-23T03:21:43Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114am:g039091908:03909_1908-0018/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114am:g039091908:03909_1908-0018","type":"ImageService3","width":1628,"height":1927},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1628.0,0.0 1628.0,1754.2 1292.2,1757.2 1296.4,1873.4 -0.0,1915.9 -0.0,-0.0 1628.0,0.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114am:g039091908:03909_1908-0018/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.73784914861348,42.278622137235274]}},{"type":"Feature","properties":{"resourceCoords":[1628.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.73368191022148,42.27857571556245]}},{"type":"Feature","properties":{"resourceCoords":[1628.0,1927.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.73375565358164,42.27490034749638]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1927.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.73792289197364,42.274946769169205]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114am:g039091908:03909_1908-0019__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Ann Arbor, Michigan | 1908 | sanborn03909_004 p19 [1]","metadata":[{"label":"streets","value":"11"},{"label":"intersections","value":"15"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"6512.0"},{"label":"split_canvas_h","value":"7708.0"}],"created":"2026-09-23T03:21:43Z","modified":"2026-09-23T03:21:43Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114am:g039091908:03909_1908-0019__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114am:g039091908:03909_1908-0019","type":"ImageService3","width":1628,"height":1927},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1200.5,1927.0 1200.0,1891.2 1343.7,1770.8 1177.6,1558.7 1572.1,1552.1 1567.8,335.1 1496.6,334.6 1496.3,242.2 162.6,240.8 157.3,233.8 127.8,919.8 459.8,919.1 598.6,1073.7 599.0,1618.6 0.0,1621.5 -0.0,1927.0 1200.5,1927.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114am:g039091908:03909_1908-0019__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[661.0,891.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-83.7430033,42.2731186]}},{"type":"Feature","properties":{"resourceCoords":[1570.0,806.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-83.7406667,42.2733034]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114am:g039091908:03909_1908-0019__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Ann Arbor, Michigan | 1908 | sanborn03909_004 p19 [2]","metadata":[{"label":"streets","value":"4"},{"label":"intersections","value":"5"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"3676.4"},{"label":"split_canvas_w","value":"2396.0"},{"label":"split_canvas_h","value":"2809.6"}],"created":"2026-09-23T03:21:43Z","modified":"2026-09-23T03:21:43Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114am:g039091908:03909_1908-0019__2/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114am:g039091908:03909_1908-0019","type":"ImageService3","width":1628,"height":1927},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"-0.0,966.9 139.7,1172.8 -0.0,1285.7 -0.0,1621.5 599.0,1618.6 598.6,1073.7 499.5,963.3 -0.0,966.9\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114am:g039091908:03909_1908-0019__2/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[362.0,967.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-83.7406352,42.271882]}},{"type":"Feature","properties":{"resourceCoords":[-16.0,967.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-83.7416506,42.2718592]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114am:g039091908:03909_1908-0002/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Ann Arbor, Michigan | 1908 | sanborn03909_004 p2","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-23T03:21:43Z","modified":"2026-09-23T03:21:43Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114am:g039091908:03909_1908-0002/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114am:g039091908:03909_1908-0002","type":"ImageService3","width":1628,"height":1927},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1443.2,1887.1 -0.0,1887.0 -0.0,-0.0 1442.8,0.0 1443.2,1887.1\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114am:g039091908:03909_1908-0002/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.75193984361584,42.285069139226884]}},{"type":"Feature","properties":{"resourceCoords":[1628.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.74784582378928,42.284947707215686]}},{"type":"Feature","properties":{"resourceCoords":[1628.0,1927.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.7480387431883,42.28133725287246]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1927.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.75213276301487,42.28145868488366]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114am:g039091908:03909_1908-0020/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Ann Arbor, Michigan | 1908 | sanborn03909_004 p20","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-23T03:21:43Z","modified":"2026-09-23T03:21:43Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114am:g039091908:03909_1908-0020/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114am:g039091908:03909_1908-0020","type":"ImageService3","width":1628,"height":1927},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"334.5,1804.3 75.5,1812.7 74.6,546.7 -0.0,545.9 -0.0,449.8 79.6,450.1 80.5,142.3 167.5,142.6 168.0,0.0 1211.5,0.0 1206.9,145.9 1524.5,146.9 1483.8,1927.0 336.2,1927.0 334.5,1804.3\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114am:g039091908:03909_1908-0020/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.74089448666832,42.27519938920034]}},{"type":"Feature","properties":{"resourceCoords":[1628.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.73689343196685,42.275248655624765]}},{"type":"Feature","properties":{"resourceCoords":[1628.0,1927.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.73681517436573,42.271719639603084]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1927.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.7408162290672,42.27167037317866]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114am:g039091908:03909_1908-0021__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Ann Arbor, Michigan | 1908 | sanborn03909_004 p21 [1]","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"9"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"6512.0"},{"label":"split_canvas_h","value":"7708.0"}],"created":"2026-09-23T03:21:43Z","modified":"2026-09-23T03:21:43Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114am:g039091908:03909_1908-0021__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114am:g039091908:03909_1908-0021","type":"ImageService3","width":1628,"height":1927},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1179.2,1927.0 1183.9,1927.0 1183.9,1508.1 1191.6,896.6 1194.1,896.6 1193.9,775.7 1586.2,766.7 1584.3,656.9 1628.0,656.9 1628.0,0.0 994.4,0.0 997.6,117.8 -0.0,142.9 -0.0,1927.0 1179.2,1927.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114am:g039091908:03909_1908-0021__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[547.0,787.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-83.73576,42.273757]}},{"type":"Feature","properties":{"resourceCoords":[1575.0,104.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-83.7331327,42.2750312]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114am:g039091908:03909_1908-0021__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Ann Arbor, Michigan | 1908 | sanborn03909_004 p21 [2]","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"split_canvas_x","value":"4735.6"},{"label":"split_canvas_y","value":"3586.4"},{"label":"split_canvas_w","value":"1776.4"},{"label":"split_canvas_h","value":"4121.6"}],"created":"2026-09-23T03:21:43Z","modified":"2026-09-23T03:21:43Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114am:g039091908:03909_1908-0021__2/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114am:g039091908:03909_1908-0021","type":"ImageService3","width":1628,"height":1927},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1628.0,1927.0 1628.0,896.7 1568.6,896.7 1570.9,1004.3 1190.2,1012.6 1183.9,1508.1 1183.9,1927.0 1628.0,1927.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114am:g039091908:03909_1908-0021__2/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[1183.9,896.6],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.73411176046824,42.27399354970724]}},{"type":"Feature","properties":{"resourceCoords":[1628.0,896.6],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.73296615812595,42.273989204210096]}},{"type":"Feature","properties":{"resourceCoords":[1628.0,1927.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.7329796691739,42.272011407568726]}},{"type":"Feature","properties":{"resourceCoords":[1183.9,1927.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.73412527151619,42.27201575306587]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114am:g039091908:03909_1908-0022__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Ann Arbor, Michigan | 1908 | sanborn03909_004 p22 [1]","metadata":[{"label":"streets","value":"3"},{"label":"intersections","value":"1"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"6512.0"},{"label":"split_canvas_h","value":"4746.4"}],"created":"2026-09-23T03:21:43Z","modified":"2026-09-23T03:21:43Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114am:g039091908:03909_1908-0022__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114am:g039091908:03909_1908-0022","type":"ImageService3","width":1628,"height":1927},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1628.0,0.0 -0.0,0.0 -0.0,1186.6 1104.0,1176.3 1628.0,1171.7 1628.0,0.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114am:g039091908:03909_1908-0022__1/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.73741451904446,42.28478404833274]}},{"type":"Feature","properties":{"resourceCoords":[1628.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.73326597910938,42.28496334927676]}},{"type":"Feature","properties":{"resourceCoords":[1628.0,1186.6],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.73308933343628,42.28272479574642]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1186.6],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.73723787337137,42.2825454948024]}},{"type":"Feature","properties":{"resourceCoords":[634.0,901.7],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-83.7356647,42.2831528]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114am:g039091908:03909_1908-0023/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Ann Arbor, Michigan | 1908 | sanborn03909_004 p23","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-23T03:21:43Z","modified":"2026-09-23T03:21:43Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114am:g039091908:03909_1908-0023/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114am:g039091908:03909_1908-0023","type":"ImageService3","width":1628,"height":1927},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"-0.0,1858.8 -0.0,-0.0 1628.0,0.0 1628.0,660.6 1399.5,1005.3 1394.5,1883.2 32.2,1893.1 32.2,1850.8 -0.0,1858.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114am:g039091908:03909_1908-0023/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.74692344038384,42.28839340391122]}},{"type":"Feature","properties":{"resourceCoords":[1628.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.74285160902018,42.28824766314877]}},{"type":"Feature","properties":{"resourceCoords":[1628.0,1927.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.74308315991063,42.28465696421111]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1927.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.74715499127429,42.28480270497356]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114am:g039091908:03909_1908-0024__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Ann Arbor, Michigan | 1908 | sanborn03909_004 p24 [1]","metadata":[{"label":"streets","value":"8"},{"label":"intersections","value":"11"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"5896.0"},{"label":"split_canvas_h","value":"7708.0"}],"created":"2026-09-23T03:21:43Z","modified":"2026-09-23T03:21:43Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114am:g039091908:03909_1908-0024__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114am:g039091908:03909_1908-0024","type":"ImageService3","width":1628,"height":1927},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"77.8,1819.1 1248.2,1823.6 1474.0,681.1 1147.3,681.9 840.7,178.0 839.6,0.0 762.8,0.0 344.3,0.0 332.6,604.0 99.7,943.3 77.8,1819.1\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114am:g039091908:03909_1908-0024__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[832.0,1832.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-83.7417575,42.2846952]}},{"type":"Feature","properties":{"resourceCoords":[1284.0,810.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-83.7405418,42.2865803]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114am:g039091908:03909_1908-0025__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Ann Arbor, Michigan | 1908 | sanborn03909_004 p25 [1]","metadata":[{"label":"streets","value":"8"},{"label":"intersections","value":"8"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"6512.0"},{"label":"split_canvas_h","value":"7708.0"}],"created":"2026-09-23T03:21:43Z","modified":"2026-09-23T03:21:43Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114am:g039091908:03909_1908-0025__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114am:g039091908:03909_1908-0025","type":"ImageService3","width":1628,"height":1927},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"-0.0,1927.0 1240.3,1927.0 1239.6,1364.9 1628.0,1364.7 1628.0,-0.0 -0.0,0.0 -0.0,1927.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114am:g039091908:03909_1908-0025__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[680.0,972.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-83.7388934,42.2893576]}},{"type":"Feature","properties":{"resourceCoords":[680.0,1313.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-83.739542,42.2890419]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114am:g039091908:03909_1908-0003/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Ann Arbor, Michigan | 1908 | sanborn03909_004 p3","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-23T03:21:43Z","modified":"2026-09-23T03:21:43Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114am:g039091908:03909_1908-0003/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114am:g039091908:03909_1908-0003","type":"ImageService3","width":1628,"height":1927},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1628.0,1799.0 1628.0,1837.2 324.7,1844.5 325.3,0.0 1302.7,33.7 1302.7,1796.8 1628.0,1799.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114am:g039091908:03909_1908-0003/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.74913377765515,42.28498777192238]}},{"type":"Feature","properties":{"resourceCoords":[1628.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.74501878953907,42.28486746976365]}},{"type":"Feature","properties":{"resourceCoords":[1628.0,1927.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.74520991360008,42.28123851738381]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1927.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.74932490171615,42.28135881954255]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114am:g039091908:03909_1908-0004/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Ann Arbor, Michigan | 1908 | sanborn03909_004 p4","metadata":[{"label":"streets","value":"4"},{"label":"intersections","value":"7"}],"created":"2026-09-23T03:21:43Z","modified":"2026-09-23T03:21:43Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114am:g039091908:03909_1908-0004/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114am:g039091908:03909_1908-0004","type":"ImageService3","width":1628,"height":1927},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"29.7,1927.0 15.8,51.5 1628.0,33.6 1628.0,1017.9 1498.9,1018.6 1511.9,1927.0 29.7,1927.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114am:g039091908:03909_1908-0004/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[287.0,48.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-83.745196,42.284812]}},{"type":"Feature","properties":{"resourceCoords":[928.0,48.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-83.7436619,42.2847594]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114am:g039091908:03909_1908-0005/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Ann Arbor, Michigan | 1908 | sanborn03909_004 p5","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-23T03:21:43Z","modified":"2026-09-23T03:21:43Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114am:g039091908:03909_1908-0005/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114am:g039091908:03909_1908-0005","type":"ImageService3","width":1628,"height":1927},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"-0.0,938.6 123.5,939.6 136.7,18.1 1628.0,0.0 1628.0,1311.5 1579.9,1314.4 1611.3,1815.3 -0.0,1880.6 -0.0,938.6\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114am:g039091908:03909_1908-0005/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.7423279161539,42.28474502102622]}},{"type":"Feature","properties":{"resourceCoords":[1628.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.73825370982183,42.284647078253705]}},{"type":"Feature","properties":{"resourceCoords":[1628.0,1927.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.73840931105708,42.28105408004299]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1927.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.74248351738915,42.281152022815505]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114am:g039091908:03909_1908-0006/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Ann Arbor, Michigan | 1908 | sanborn03909_004 p6","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-23T03:21:43Z","modified":"2026-09-23T03:21:43Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114am:g039091908:03909_1908-0006/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114am:g039091908:03909_1908-0006","type":"ImageService3","width":1628,"height":1927},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1534.3,1854.6 93.6,1927.0 84.5,1819.7 -0.0,1824.9 -0.0,-0.0 1628.0,33.4 1628.0,1019.3 1508.7,1097.2 1534.3,1854.6\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114am:g039091908:03909_1908-0006/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.7548357603007,42.281687325540396]}},{"type":"Feature","properties":{"resourceCoords":[1628.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.75067249455762,42.28155400618172]}},{"type":"Feature","properties":{"resourceCoords":[1628.0,1927.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.75088428785672,42.27788228443589]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1927.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.7550475535998,42.278015603794564]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114am:g039091908:03909_1908-0007/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Ann Arbor, Michigan | 1908 | sanborn03909_004 p7","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-23T03:21:43Z","modified":"2026-09-23T03:21:43Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114am:g039091908:03909_1908-0007/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114am:g039091908:03909_1908-0007","type":"ImageService3","width":1628,"height":1927},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"371.1,1878.8 344.1,1093.4 465.0,1034.5 464.1,38.0 1324.3,34.6 1331.7,1879.7 371.1,1878.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114am:g039091908:03909_1908-0007/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.75184628102993,42.281600430824604]}},{"type":"Feature","properties":{"resourceCoords":[1628.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.7477273083397,42.2814658896442]}},{"type":"Feature","properties":{"resourceCoords":[1628.0,1927.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.74794104242112,42.27783322760734]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1927.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.75206001511134,42.27796776878774]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114am:g039091908:03909_1908-0008/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Ann Arbor, Michigan | 1908 | sanborn03909_004 p8","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-23T03:21:43Z","modified":"2026-09-23T03:21:43Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114am:g039091908:03909_1908-0008/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114am:g039091908:03909_1908-0008","type":"ImageService3","width":1628,"height":1927},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"311.4,1878.0 309.5,0.0 1286.2,0.0 1289.0,1880.4 311.4,1878.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114am:g039091908:03909_1908-0008/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.7492796580954,42.281513950201756]}},{"type":"Feature","properties":{"resourceCoords":[1628.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.74515772845416,42.28138845918741]}},{"type":"Feature","properties":{"resourceCoords":[1628.0,1927.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.74535708505113,42.27775318459827]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1927.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.74947901469237,42.27787867561261]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114am:g039091908:03909_1908-0009__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Ann Arbor, Michigan | 1908 | sanborn03909_004 p9 [1]","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"9"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"3890.8"},{"label":"split_canvas_h","value":"7708.0"}],"created":"2026-09-23T03:21:43Z","modified":"2026-09-23T03:21:43Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114am:g039091908:03909_1908-0009__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114am:g039091908:03909_1908-0009","type":"ImageService3","width":1628,"height":1927},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"880.1,1864.4 878.5,1015.5 872.2,1015.5 873.5,463.8 874.4,0.0 79.7,0.0 80.0,1865.0 880.1,1864.4\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114am:g039091908:03909_1908-0009__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[80.0,1865.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-83.7462105,42.2778672]}},{"type":"Feature","properties":{"resourceCoords":[80.0,43.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-83.746026,42.2813492]}}]}}]}