{"id":"https://data.mapsnap.org/runs/v1.3/iiif/loc/sanborn07660_011.main.iiif.json","type":"AnnotationPage","@context":["http://www.w3.org/ns/anno.jsonld"],"label":"Erie, Pennsylvania | 1951 | 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":"111"},{"label":"placed","value":"95"},{"label":"unplaced","value":"16"},{"label":"fit sources","value":"georef 54, georef-snap 40, snap:0 1"},{"label":"key map","value":"georeferenced"},{"label":"split sheets","value":"9 sheet(s) cut into 22 panels"},{"label":"unplaced pages","value":"p0 (tier 4, 42.13124,-80.04989 +/-3934m); p306 (tier 1, 42.14125,-80.06575 +/-309m); p307 (tier 1, 42.14432,-80.06654 +/-241m); p317 (tier 1, 42.14402,-80.05857 +/-268m); p318 (tier 2, 42.14161,-80.06096 +/-100m); p325__2 (tier 2, 42.13739,-80.05779 +/-176m); p371__1 (tier 1, 42.12026,-80.05389 +/-100m); p397__1 (tier 2, 42.14076,-80.03516 +/-100m); p397__2 (tier 1, 42.14056,-80.03401 +/-221m); p398 (tier 2, 42.13805,-80.07215 +/-286m); p453__1 (tier 1, 42.13521,-80.00914 +/-190m); p453__2 (tier 2, 42.13337,-80.01511 +/-100m); p453__3 (tier 2, 42.13337,-80.01511 +/-100m); p454__3 (tier 1, 42.14342,-80.01474 +/-100m); p470__1 (tier 4, 42.13124,-80.04989 +/-3934m); p470__2 (tier 4, 42.13124,-80.04989 +/-3934m)"}],"items":[{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195103:07660_03_1951-0301/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Erie, Pennsylvania | 1951 | sanborn07660_011 p301","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T13:17:29Z","modified":"2026-09-21T13:17:29Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195103:07660_03_1951-0301/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195103:07660_03_1951-0301/info.json","type":"ImageService2","height":5400,"width":4352},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"2959.9,0.0 2955.7,232.0 3621.8,250.2 3578.7,4888.5 930.1,4859.2 923.5,5400.0 -0.0,5400.0 -0.0,-0.0 2959.9,0.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195103:07660_03_1951-0301/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.07717961171554,42.13623497408728]}},{"type":"Feature","properties":{"resourceCoords":[4352.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.073528917637,42.13761822313135]}},{"type":"Feature","properties":{"resourceCoords":[4352.0,5400.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.07123063560023,42.13423537700472]}},{"type":"Feature","properties":{"resourceCoords":[0.0,5400.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.07488132967876,42.13285212796065]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195103:07660_03_1951-0302/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Erie, Pennsylvania | 1951 | sanborn07660_011 p302","metadata":[{"label":"streets","value":"5"},{"label":"intersections","value":"6"}],"created":"2026-09-21T13:17:29Z","modified":"2026-09-21T13:17:29Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195103:07660_03_1951-0302/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195103:07660_03_1951-0302/info.json","type":"ImageService2","height":5400,"width":4352},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"3461.7,5007.7 800.0,5015.5 799.4,337.3 129.8,328.3 132.7,0.0 4352.0,0.0 4352.0,223.1 2446.1,228.2 2447.4,725.6 3469.2,722.5 3461.7,5007.7\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195103:07660_03_1951-0302/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[800.0,1860.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.0734039,42.1362793]}},{"type":"Feature","properties":{"resourceCoords":[3464.0,1860.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.0711648,42.1370985]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195103:07660_03_1951-0303/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Erie, Pennsylvania | 1951 | sanborn07660_011 p303","metadata":[{"label":"streets","value":"5"},{"label":"intersections","value":"5"}],"created":"2026-09-21T13:17:29Z","modified":"2026-09-21T13:17:29Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195103:07660_03_1951-0303/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195103:07660_03_1951-0303/info.json","type":"ImageService2","height":5400,"width":4352},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1020.3,496.2 -0.0,496.6 -0.0,-0.0 3460.7,0.0 3453.0,1242.5 4336.4,4799.2 1001.3,4774.9 1020.3,496.2\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195103:07660_03_1951-0303/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1012.0,1632.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.0711648,42.1370985]}},{"type":"Feature","properties":{"resourceCoords":[3632.0,4800.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.0676411,42.1359323]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195103:07660_03_1951-0304__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Erie, Pennsylvania | 1951 | sanborn07660_011 p304 [1]","metadata":[{"label":"streets","value":"5"},{"label":"intersections","value":"8"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"4352.0"},{"label":"split_canvas_h","value":"2419.2"}],"created":"2026-09-21T13:17:29Z","modified":"2026-09-21T13:17:29Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195103:07660_03_1951-0304__1/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195103:07660_03_1951-0304/info.json","type":"ImageService2","height":5400,"width":4352},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"167.3,2419.1 167.5,2419.1 682.4,2065.4 1865.5,2306.6 4352.0,2298.4 4352.0,0.0 2581.8,0.0 2583.0,217.9 164.0,221.9 167.3,2419.1\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195103:07660_03_1951-0304__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[2600.0,2307.2],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.0567216,42.1320946]}},{"type":"Feature","properties":{"resourceCoords":[164.0,223.9],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.0597381,42.1326864]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195103:07660_03_1951-0304__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Erie, Pennsylvania | 1951 | sanborn07660_011 p304 [2]","metadata":[{"label":"streets","value":"3"},{"label":"intersections","value":"2"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"2415.6"},{"label":"split_canvas_w","value":"4352.0"},{"label":"split_canvas_h","value":"1398.4"}],"created":"2026-09-21T13:17:29Z","modified":"2026-09-21T13:17:29Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195103:07660_03_1951-0304__2/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195103:07660_03_1951-0304/info.json","type":"ImageService2","height":5400,"width":4352},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"4352.0,3702.8 4352.0,2472.1 765.6,2418.6 566.6,2418.7 560.2,3706.5 4352.0,3702.8\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195103:07660_03_1951-0304__2/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[2536.0,3706.4],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.0533741,42.1333101]}},{"type":"Feature","properties":{"resourceCoords":[1392.0,3706.4],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.0544258,42.1329283]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195103:07660_03_1951-0304__3/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Erie, Pennsylvania | 1951 | sanborn07660_011 p304 [3]","metadata":[{"label":"streets","value":"2"},{"label":"intersections","value":"1"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"3768.0"},{"label":"split_canvas_w","value":"4352.0"},{"label":"split_canvas_h","value":"1632.0"}],"created":"2026-09-21T13:17:29Z","modified":"2026-09-21T13:17:29Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195103:07660_03_1951-0304__3/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195103:07660_03_1951-0304/info.json","type":"ImageService2","height":5400,"width":4352},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"2496.9,4046.4 905.6,4039.6 893.1,5025.7 811.8,5024.7 804.0,5400.0 4352.0,5400.0 4352.0,3877.6 4352.0,3768.0 2498.0,3787.6 2496.9,4046.4\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195103:07660_03_1951-0304__3/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,3768.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.05298750725339,42.134421059676924]}},{"type":"Feature","properties":{"resourceCoords":[4352.0,3768.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.04933812129644,42.135788705697834]}},{"type":"Feature","properties":{"resourceCoords":[4352.0,5400.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.04864739836951,42.13477256892889]}},{"type":"Feature","properties":{"resourceCoords":[0.0,5400.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.05229678432646,42.13340492290798]}},{"type":"Feature","properties":{"resourceCoords":[1632.0,5036.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.051084,42.1341438]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195103:07660_03_1951-0305/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Erie, Pennsylvania | 1951 | sanborn07660_011 p305","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T13:17:29Z","modified":"2026-09-21T13:17:29Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195103:07660_03_1951-0305/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195103:07660_03_1951-0305/info.json","type":"ImageService2","height":5400,"width":4352},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"273.1,4123.3 -0.0,4125.3 0.0,-0.0 4352.0,0.0 4352.0,4771.2 279.6,4797.9 273.1,4123.3\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195103:07660_03_1951-0305/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.0705790529637,42.14020374520564]}},{"type":"Feature","properties":{"resourceCoords":[4352.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.06873877098144,42.14086607244022]}},{"type":"Feature","properties":{"resourceCoords":[4352.0,5400.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.06763821485806,42.139160954046844]}},{"type":"Feature","properties":{"resourceCoords":[0.0,5400.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.06947849684032,42.138498626812265]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195103:07660_03_1951-0312/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Erie, Pennsylvania | 1951 | sanborn07660_011 p312","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T13:17:29Z","modified":"2026-09-21T13:17:29Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195103:07660_03_1951-0312/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195103:07660_03_1951-0312/info.json","type":"ImageService2","height":5400,"width":4352},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"-0.0,4710.0 0.0,-0.0 4062.3,0.0 4032.4,3834.2 4229.0,3836.8 4221.0,5054.4 1583.4,5020.6 1586.7,4726.0 -0.0,4710.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195103:07660_03_1951-0312/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.06816808739852,42.142785711940256]}},{"type":"Feature","properties":{"resourceCoords":[4352.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.06462759863655,42.1441250224323]}},{"type":"Feature","properties":{"resourceCoords":[4352.0,5400.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.06240208984606,42.14084463663044]}},{"type":"Feature","properties":{"resourceCoords":[0.0,5400.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.06594257860803,42.1395053261384]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195103:07660_03_1951-0313/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Erie, Pennsylvania | 1951 | sanborn07660_011 p313","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T13:17:29Z","modified":"2026-09-21T13:17:29Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195103:07660_03_1951-0313/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195103:07660_03_1951-0313/info.json","type":"ImageService2","height":5400,"width":4352},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"4022.0,3176.8 4279.5,3177.5 4286.2,341.2 4352.0,341.1 4352.0,4784.7 910.3,4818.4 -0.0,1255.3 0.0,-0.0 200.6,0.0 201.3,339.7 4006.9,341.4 4022.0,3176.8\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195103:07660_03_1951-0313/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.06979105450067,42.13888176510399]}},{"type":"Feature","properties":{"resourceCoords":[4352.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.06615019916079,42.14021736372317]}},{"type":"Feature","properties":{"resourceCoords":[4352.0,5400.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.0639309971252,42.136843773811904]}},{"type":"Feature","properties":{"resourceCoords":[0.0,5400.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.06757185246508,42.135508175192726]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195103:07660_03_1951-0314/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Erie, Pennsylvania | 1951 | sanborn07660_011 p314","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T13:17:29Z","modified":"2026-09-21T13:17:29Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195103:07660_03_1951-0314/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195103:07660_03_1951-0314/info.json","type":"ImageService2","height":5400,"width":4352},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"-0.0,3156.7 -0.0,-0.0 1788.4,0.0 4252.8,608.7 4243.2,4211.5 4105.5,4591.8 324.1,4779.8 -0.0,3156.7\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195103:07660_03_1951-0314/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.06642121701701,42.14008214555833]}},{"type":"Feature","properties":{"resourceCoords":[4352.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.06281978939626,42.141420995414016]}},{"type":"Feature","properties":{"resourceCoords":[4352.0,5400.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.06059514147044,42.1380840044984]}},{"type":"Feature","properties":{"resourceCoords":[0.0,5400.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.0641965690912,42.13674515464272]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195103:07660_03_1951-0315/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Erie, Pennsylvania | 1951 | sanborn07660_011 p315","metadata":[{"label":"streets","value":"8"},{"label":"intersections","value":"11"}],"created":"2026-09-21T13:17:29Z","modified":"2026-09-21T13:17:29Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195103:07660_03_1951-0315/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195103:07660_03_1951-0315/info.json","type":"ImageService2","height":5400,"width":4352},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"3527.5,4958.5 3576.9,5400.0 191.2,5400.0 190.5,3768.3 -0.0,3768.1 0.0,0.0 4352.0,0.0 4352.0,4686.1 4137.3,4710.1 4135.0,4954.3 3527.5,4958.5\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195103:07660_03_1951-0315/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[4168.0,1012.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.0609365,42.144718]}},{"type":"Feature","properties":{"resourceCoords":[192.0,4952.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.0626511,42.1410143]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195103:07660_03_1951-0316/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Erie, Pennsylvania | 1951 | sanborn07660_011 p316","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T13:17:29Z","modified":"2026-09-21T13:17:29Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195103:07660_03_1951-0316/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195103:07660_03_1951-0316/info.json","type":"ImageService2","height":5400,"width":4352},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"-0.0,3743.6 134.2,3743.2 109.4,585.7 3567.1,567.7 3952.8,3728.8 4162.1,3730.3 4179.0,3819.3 4192.3,4870.6 -0.0,4905.7 -0.0,3743.6\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195103:07660_03_1951-0316/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.06279104821989,42.14106286385214]}},{"type":"Feature","properties":{"resourceCoords":[4352.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.05918181387271,42.14236947305373]}},{"type":"Feature","properties":{"resourceCoords":[4352.0,5400.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.05701070608416,42.13902529682922]}},{"type":"Feature","properties":{"resourceCoords":[0.0,5400.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.06061994043134,42.137718687627626]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195103:07660_03_1951-0319/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Erie, Pennsylvania | 1951 | sanborn07660_011 p319","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"8"}],"created":"2026-09-21T13:17:29Z","modified":"2026-09-21T13:17:29Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195103:07660_03_1951-0319/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195103:07660_03_1951-0319/info.json","type":"ImageService2","height":5400,"width":4352},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"-0.0,5400.0 -0.0,747.7 920.0,739.2 924.0,197.0 3570.1,201.9 3550.8,4875.4 907.9,4861.6 900.5,5400.0 -0.0,5400.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195103:07660_03_1951-0319/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[912.0,3332.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.0730226,42.1315191]}},{"type":"Feature","properties":{"resourceCoords":[912.0,1804.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.0736654,42.1324762]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195103:07660_03_1951-0320/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Erie, Pennsylvania | 1951 | sanborn07660_011 p320","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"8"}],"created":"2026-09-21T13:17:29Z","modified":"2026-09-21T13:17:29Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195103:07660_03_1951-0320/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195103:07660_03_1951-0320/info.json","type":"ImageService2","height":5400,"width":4352},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"3448.5,4889.2 796.0,4892.0 806.4,186.6 3470.1,186.3 3448.5,4889.2\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195103:07660_03_1951-0320/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[796.0,1812.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.0714292,42.1332946]}},{"type":"Feature","properties":{"resourceCoords":[796.0,4892.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.0701472,42.1313766]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195103:07660_03_1951-0321/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Erie, Pennsylvania | 1951 | sanborn07660_011 p321","metadata":[{"label":"streets","value":"7"},{"label":"intersections","value":"10"}],"created":"2026-09-21T13:17:29Z","modified":"2026-09-21T13:17:29Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195103:07660_03_1951-0321/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195103:07660_03_1951-0321/info.json","type":"ImageService2","height":5400,"width":4352},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"728.7,4771.0 778.4,86.5 3404.7,127.8 3380.7,4789.0 728.7,4771.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195103:07660_03_1951-0321/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[768.0,1708.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.0691861,42.1341195]}},{"type":"Feature","properties":{"resourceCoords":[3392.0,3252.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.0663306,42.1339811]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195103:07660_03_1951-0322/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Erie, Pennsylvania | 1951 | sanborn07660_011 p322","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T13:17:29Z","modified":"2026-09-21T13:17:29Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195103:07660_03_1951-0322/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195103:07660_03_1951-0322/info.json","type":"ImageService2","height":5400,"width":4352},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"3395.7,182.6 3421.8,4765.5 3377.4,4663.4 2543.2,4661.5 2726.1,5400.0 712.9,5400.0 688.9,181.6 3395.7,182.6\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195103:07660_03_1951-0322/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.06829299810045,42.13583261855624]}},{"type":"Feature","properties":{"resourceCoords":[4352.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.06465021665582,42.137179678904836]}},{"type":"Feature","properties":{"resourceCoords":[4352.0,5400.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.0624120779547,42.13380414155566]}},{"type":"Feature","properties":{"resourceCoords":[0.0,5400.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.06605485939933,42.132457081207065]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195103:07660_03_1951-0323/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Erie, Pennsylvania | 1951 | sanborn07660_011 p323","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T13:17:29Z","modified":"2026-09-21T13:17:29Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195103:07660_03_1951-0323/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195103:07660_03_1951-0323/info.json","type":"ImageService2","height":5400,"width":4352},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"785.7,4817.6 774.8,155.4 4352.0,0.0 4352.0,1765.8 3566.2,1761.5 3559.1,4852.8 785.7,4817.6\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195103:07660_03_1951-0323/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.06608815865748,42.13662483979349]}},{"type":"Feature","properties":{"resourceCoords":[4352.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.06244703691968,42.13798265836433]}},{"type":"Feature","properties":{"resourceCoords":[4352.0,5400.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.06019099463647,42.13460870205149]}},{"type":"Feature","properties":{"resourceCoords":[0.0,5400.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.06383211637427,42.13325088348065]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195103:07660_03_1951-0324/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Erie, Pennsylvania | 1951 | sanborn07660_011 p324","metadata":[{"label":"streets","value":"7"},{"label":"intersections","value":"11"}],"created":"2026-09-21T13:17:29Z","modified":"2026-09-21T13:17:29Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195103:07660_03_1951-0324/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195103:07660_03_1951-0324/info.json","type":"ImageService2","height":5400,"width":4352},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1003.6,1810.6 1013.1,48.5 3381.0,0.0 3512.0,1820.0 3502.7,4906.7 987.8,4903.0 1003.6,1810.6\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195103:07660_03_1951-0324/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[3512.0,3364.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.0596091,42.1364503]}},{"type":"Feature","properties":{"resourceCoords":[3512.0,1820.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.0602576,42.1374133]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195103:07660_03_1951-0325__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Erie, Pennsylvania | 1951 | sanborn07660_011 p325 [1]","metadata":[{"label":"streets","value":"9"},{"label":"intersections","value":"15"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"4352.0"},{"label":"split_canvas_h","value":"5400.0"}],"created":"2026-09-21T13:17:29Z","modified":"2026-09-21T13:17:29Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195103:07660_03_1951-0325__1/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195103:07660_03_1951-0325/info.json","type":"ImageService2","height":5400,"width":4352},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"4352.0,2365.1 4352.0,1308.7 4193.9,1308.7 4198.3,248.0 2780.5,248.9 2757.2,859.2 2736.8,1271.6 2558.4,1344.4 2355.6,1426.8 2352.8,1752.4 1988.4,1745.6 2007.6,2098.0 1766.0,2073.2 1768.0,1741.2 1770.4,1365.2 1772.4,982.0 1776.0,249.5 -0.0,250.6 -0.0,1304.3 214.0,1304.6 211.7,4399.0 2962.3,4410.2 2963.7,4699.9 4176.3,4705.7 4188.5,2365.0 4352.0,2365.1\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195103:07660_03_1951-0325__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[2968.0,1308.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.057946,42.138264]}},{"type":"Feature","properties":{"resourceCoords":[216.0,3272.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.0594354,42.1361885]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195103:07660_03_1951-0326/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Erie, Pennsylvania | 1951 | sanborn07660_011 p326","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T13:17:29Z","modified":"2026-09-21T13:17:29Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195103:07660_03_1951-0326/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195103:07660_03_1951-0326/info.json","type":"ImageService2","height":5400,"width":4352},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"113.5,3491.9 131.9,400.3 2942.7,429.3 2943.6,724.3 4182.8,737.9 4174.2,2067.9 3393.7,2069.3 3394.0,4554.2 1978.7,4514.8 1991.8,3525.3 113.5,3491.9\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195103:07660_03_1951-0326/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.05924143067438,42.135689388370615]}},{"type":"Feature","properties":{"resourceCoords":[4352.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.05568011905363,42.13702479364475]}},{"type":"Feature","properties":{"resourceCoords":[4352.0,5400.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.05346134843204,42.133724744531]}},{"type":"Feature","properties":{"resourceCoords":[0.0,5400.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.05702266005278,42.13238933925687]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195103:07660_03_1951-0327/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Erie, Pennsylvania | 1951 | sanborn07660_011 p327","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T13:17:29Z","modified":"2026-09-21T13:17:29Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195103:07660_03_1951-0327/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195103:07660_03_1951-0327/info.json","type":"ImageService2","height":5400,"width":4352},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"739.7,3846.7 904.4,3846.0 894.2,2785.8 735.0,2786.6 702.2,591.1 3455.6,622.2 3474.2,1708.7 4352.0,1706.9 4352.0,5004.5 748.1,5016.6 739.7,3846.7\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195103:07660_03_1951-0327/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.05866679548731,42.140157156821424]}},{"type":"Feature","properties":{"resourceCoords":[4352.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.0550326670078,42.14148161378661]}},{"type":"Feature","properties":{"resourceCoords":[4352.0,5400.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.05283193302049,42.13811432530796]}},{"type":"Feature","properties":{"resourceCoords":[0.0,5400.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.0564660615,42.136789868342774]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195103:07660_03_1951-0328/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Erie, Pennsylvania | 1951 | sanborn07660_011 p328","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T13:17:29Z","modified":"2026-09-21T13:17:29Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195103:07660_03_1951-0328/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195103:07660_03_1951-0328/info.json","type":"ImageService2","height":5400,"width":4352},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1726.9,1676.9 808.5,1680.9 786.5,544.3 3101.9,480.8 3096.1,637.9 3509.4,637.5 3328.1,1669.9 3384.5,3892.3 3262.2,5122.3 1734.7,5127.0 1726.9,1676.9\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195103:07660_03_1951-0328/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.05636704102119,42.140917838237755]}},{"type":"Feature","properties":{"resourceCoords":[4352.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.05288962096743,42.14217786419134]}},{"type":"Feature","properties":{"resourceCoords":[4352.0,5400.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.05079592115943,42.138955816398784]}},{"type":"Feature","properties":{"resourceCoords":[0.0,5400.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.05427334121319,42.1376957904452]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195103:07660_03_1951-0329/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Erie, Pennsylvania | 1951 | sanborn07660_011 p329","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"8"}],"created":"2026-09-21T13:17:29Z","modified":"2026-09-21T13:17:29Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195103:07660_03_1951-0329/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195103:07660_03_1951-0329/info.json","type":"ImageService2","height":5400,"width":4352},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"3534.9,43.9 3512.0,2540.0 4352.0,2542.3 4352.0,5400.0 2752.8,5400.0 2755.8,5041.9 3494.1,5123.9 3501.0,3877.0 2736.9,3865.6 2725.8,5038.2 -0.0,4973.8 -0.0,2528.0 765.5,2523.2 785.6,36.5 3534.9,43.9\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195103:07660_03_1951-0329/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[756.0,3836.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.0544358,42.1348885]}},{"type":"Feature","properties":{"resourceCoords":[3512.0,2540.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.0526725,42.1365476]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195103:07660_03_1951-0330/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Erie, Pennsylvania | 1951 | sanborn07660_011 p330","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"7"}],"created":"2026-09-21T13:17:29Z","modified":"2026-09-21T13:17:29Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195103:07660_03_1951-0330/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195103:07660_03_1951-0330/info.json","type":"ImageService2","height":5400,"width":4352},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"-0.0,3840.7 759.2,23.8 3042.6,15.9 3953.4,1735.3 4352.0,1749.8 4352.0,5400.0 3483.7,5400.0 -0.0,5009.6 -0.0,3840.7\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195103:07660_03_1951-0330/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[760.0,2512.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.0526725,42.1365476]}},{"type":"Feature","properties":{"resourceCoords":[760.0,1208.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.0532083,42.1373636]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195103:07660_03_1951-0331/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Erie, Pennsylvania | 1951 | sanborn07660_011 p331","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T13:17:29Z","modified":"2026-09-21T13:17:29Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195103:07660_03_1951-0331/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195103:07660_03_1951-0331/info.json","type":"ImageService2","height":5400,"width":4352},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"219.0,1159.4 335.3,316.3 -0.0,329.0 -0.0,-0.0 4352.0,0.0 4352.0,5400.0 290.6,5400.0 331.0,2960.9 219.0,1159.4\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195103:07660_03_1951-0331/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.05379091235098,42.14167949876531]}},{"type":"Feature","properties":{"resourceCoords":[4352.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.04943455131605,42.143112912746915]}},{"type":"Feature","properties":{"resourceCoords":[4352.0,5400.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.0470527236088,42.1390765061766]}},{"type":"Feature","properties":{"resourceCoords":[0.0,5400.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.05140908464372,42.137643092195]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195103:07660_03_1951-0334/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Erie, Pennsylvania | 1951 | sanborn07660_011 p334","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T13:17:29Z","modified":"2026-09-21T13:17:29Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195103:07660_03_1951-0334/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195103:07660_03_1951-0334/info.json","type":"ImageService2","height":5400,"width":4352},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"-0.0,5400.0 -0.0,1138.1 909.3,1176.2 958.6,0.0 4296.5,0.0 4269.9,4889.5 4352.0,4890.0 4352.0,5400.0 -0.0,5400.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195103:07660_03_1951-0334/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.0485662008599,42.1396304999404]}},{"type":"Feature","properties":{"resourceCoords":[4352.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.04413827301848,42.14125602450894]}},{"type":"Feature","properties":{"resourceCoords":[4352.0,5400.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.04143731217339,42.137153175536966]}},{"type":"Feature","properties":{"resourceCoords":[0.0,5400.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.0458652400148,42.13552765096843]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195103:07660_03_1951-0335/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Erie, Pennsylvania | 1951 | sanborn07660_011 p335","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T13:17:29Z","modified":"2026-09-21T13:17:29Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195103:07660_03_1951-0335/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195103:07660_03_1951-0335/info.json","type":"ImageService2","height":5400,"width":4352},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"-0.0,694.5 788.3,690.3 790.3,151.2 3446.6,151.0 3466.5,4978.5 812.5,4986.9 815.5,5400.0 -0.0,5400.0 -0.0,694.5\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195103:07660_03_1951-0335/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.07310997268378,42.13041167058955]}},{"type":"Feature","properties":{"resourceCoords":[4352.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.06944740440288,42.13174994993638]}},{"type":"Feature","properties":{"resourceCoords":[4352.0,5400.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.06722404546306,42.12835578712367]}},{"type":"Feature","properties":{"resourceCoords":[0.0,5400.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.07088661374397,42.12701750777684]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195103:07660_03_1951-0336/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Erie, Pennsylvania | 1951 | sanborn07660_011 p336","metadata":[{"label":"streets","value":"7"},{"label":"intersections","value":"9"}],"created":"2026-09-21T13:17:29Z","modified":"2026-09-21T13:17:29Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195103:07660_03_1951-0336/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195103:07660_03_1951-0336/info.json","type":"ImageService2","height":5400,"width":4352},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"3462.8,142.9 3460.0,4924.0 837.2,4925.7 851.7,147.8 3462.8,142.9\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195103:07660_03_1951-0336/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[3460.0,1740.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.067252,42.1311865]}},{"type":"Feature","properties":{"resourceCoords":[3460.0,4924.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.065908,42.1291715]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195103:07660_03_1951-0337/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Erie, Pennsylvania | 1951 | sanborn07660_011 p337","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T13:17:29Z","modified":"2026-09-21T13:17:29Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195103:07660_03_1951-0337/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195103:07660_03_1951-0337/info.json","type":"ImageService2","height":5400,"width":4352},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"852.8,4987.3 834.0,130.7 3505.7,131.1 3532.4,4986.2 852.8,4987.3\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195103:07660_03_1951-0337/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.06867491682229,42.13202318006288]}},{"type":"Feature","properties":{"resourceCoords":[4352.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.06503655351402,42.133361778146444]}},{"type":"Feature","properties":{"resourceCoords":[4352.0,5400.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.06281260796254,42.12999013301724]}},{"type":"Feature","properties":{"resourceCoords":[0.0,5400.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.06645097127081,42.128651534933674]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195103:07660_03_1951-0338/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Erie, Pennsylvania | 1951 | sanborn07660_011 p338","metadata":[{"label":"streets","value":"5"},{"label":"intersections","value":"4"}],"created":"2026-09-21T13:17:29Z","modified":"2026-09-21T13:17:29Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195103:07660_03_1951-0338/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195103:07660_03_1951-0338/info.json","type":"ImageService2","height":5400,"width":4352},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"2821.7,720.1 3741.9,5005.4 827.7,5008.1 822.0,726.6 2821.7,720.1\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195103:07660_03_1951-0338/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[824.0,3404.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.0643401,42.1310005]}},{"type":"Feature","properties":{"resourceCoords":[824.0,1792.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.0650122,42.1320107]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195103:07660_03_1951-0339/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Erie, Pennsylvania | 1951 | sanborn07660_011 p339","metadata":[{"label":"streets","value":"5"},{"label":"intersections","value":"5"}],"created":"2026-09-21T13:17:29Z","modified":"2026-09-21T13:17:29Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195103:07660_03_1951-0339/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195103:07660_03_1951-0339/info.json","type":"ImageService2","height":5400,"width":4352},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"540.1,0.0 1361.7,0.0 1445.4,194.2 4140.0,204.0 4125.7,5075.9 1627.0,4978.6 540.1,0.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195103:07660_03_1951-0339/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[4140.0,3396.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.0597381,42.1326864]}},{"type":"Feature","properties":{"resourceCoords":[4140.0,204.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.061083,42.1347032]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195103:07660_03_1951-0340__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Erie, Pennsylvania | 1951 | sanborn07660_011 p340 [1]","metadata":[{"label":"streets","value":"2"},{"label":"intersections","value":"1"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"1172.0"},{"label":"split_canvas_w","value":"4352.0"},{"label":"split_canvas_h","value":"4228.0"}],"created":"2026-09-21T13:17:29Z","modified":"2026-09-21T13:17:29Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195103:07660_03_1951-0340__1/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195103:07660_03_1951-0340/info.json","type":"ImageService2","height":5400,"width":4352},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"606.1,1415.0 -0.0,1351.6 -0.0,4931.1 3488.0,5400.0 4352.0,5400.0 4352.0,4401.2 4352.0,3504.0 1226.0,3497.2 1229.6,1181.6 635.1,1177.0 606.1,1415.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195103:07660_03_1951-0340__1/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,1172.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.05992157099068,42.142149393767205]}},{"type":"Feature","properties":{"resourceCoords":[4352.0,1172.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.05648050434924,42.14378792833093]}},{"type":"Feature","properties":{"resourceCoords":[4352.0,5400.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.0543345954692,42.141303359926255]}},{"type":"Feature","properties":{"resourceCoords":[0.0,5400.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.05777566211064,42.13966482536253]}},{"type":"Feature","properties":{"resourceCoords":[204.0,4956.4],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.0578395,42.1400023]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195103:07660_03_1951-0340__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Erie, Pennsylvania | 1951 | sanborn07660_011 p340 [2]","metadata":[{"label":"streets","value":"5"},{"label":"intersections","value":"7"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"4352.0"},{"label":"split_canvas_h","value":"3504.0"}],"created":"2026-09-21T13:17:29Z","modified":"2026-09-21T13:17:29Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195103:07660_03_1951-0340__2/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195103:07660_03_1951-0340/info.json","type":"ImageService2","height":5400,"width":4352},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"4094.2,125.0 1563.2,131.8 1564.0,3380.0 4085.9,3400.2 4094.2,125.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195103:07660_03_1951-0340__2/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[4092.0,1764.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.0582926,42.1344667]}},{"type":"Feature","properties":{"resourceCoords":[1564.0,3380.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.0597381,42.1326864]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195103:07660_03_1951-0341/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Erie, Pennsylvania | 1951 | sanborn07660_011 p341","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T13:17:29Z","modified":"2026-09-21T13:17:29Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195103:07660_03_1951-0341/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195103:07660_03_1951-0341/info.json","type":"ImageService2","height":5400,"width":4352},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"-0.0,3895.6 -0.0,1152.4 223.4,1152.6 220.7,733.7 4352.0,724.1 4352.0,4201.4 250.4,4216.5 248.9,3893.7 -0.0,3895.6\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195103:07660_03_1951-0341/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.07085437823935,42.12791457736775]}},{"type":"Feature","properties":{"resourceCoords":[4352.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.06724413477474,42.12923645784811]}},{"type":"Feature","properties":{"resourceCoords":[4352.0,5400.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.06504810681481,42.125890653347064]}},{"type":"Feature","properties":{"resourceCoords":[0.0,5400.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.06865835027942,42.1245687728667]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195103:07660_03_1951-0342/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Erie, Pennsylvania | 1951 | sanborn07660_011 p342","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T13:17:29Z","modified":"2026-09-21T13:17:29Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195103:07660_03_1951-0342/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195103:07660_03_1951-0342/info.json","type":"ImageService2","height":5400,"width":4352},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"255.3,799.2 4210.5,781.7 4240.4,3121.0 2644.6,3127.9 2648.6,3694.4 2648.6,3694.4 2652.5,4249.9 262.5,4272.2 255.3,799.2\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195103:07660_03_1951-0342/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.06748599265717,42.12920676601532]}},{"type":"Feature","properties":{"resourceCoords":[4352.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.06386752983457,42.13052468348087]}},{"type":"Feature","properties":{"resourceCoords":[4352.0,5400.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.06167804059582,42.12717133058455]}},{"type":"Feature","properties":{"resourceCoords":[0.0,5400.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.06529650341842,42.125853413119]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195103:07660_03_1951-0343/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Erie, Pennsylvania | 1951 | sanborn07660_011 p343","metadata":[{"label":"streets","value":"4"},{"label":"intersections","value":"4"}],"created":"2026-09-21T13:17:29Z","modified":"2026-09-21T13:17:29Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195103:07660_03_1951-0343/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195103:07660_03_1951-0343/info.json","type":"ImageService2","height":5400,"width":4352},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"296.0,5400.0 -0.0,5400.0 -0.0,-0.0 325.8,0.0 323.4,321.9 4352.0,338.0 4352.0,4934.5 312.0,4912.0 296.0,5400.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195103:07660_03_1951-0343/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[312.0,4912.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.0670221,42.1225398]}},{"type":"Feature","properties":{"resourceCoords":[3000.0,332.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.0667014,42.1262029]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195103:07660_03_1951-0344/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Erie, Pennsylvania | 1951 | sanborn07660_011 p344","metadata":[{"label":"streets","value":"3"},{"label":"intersections","value":"2"}],"created":"2026-09-21T13:17:29Z","modified":"2026-09-21T13:17:29Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195103:07660_03_1951-0344/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195103:07660_03_1951-0344/info.json","type":"ImageService2","height":5400,"width":4352},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"219.1,4926.0 152.6,350.6 2567.1,338.0 2562.5,4922.3 219.1,4926.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195103:07660_03_1951-0344/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1468.0,348.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.0644734,42.1270254]}},{"type":"Feature","properties":{"resourceCoords":[1468.0,4924.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.0625767,42.1241789]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195103:07660_03_1951-0345/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Erie, Pennsylvania | 1951 | sanborn07660_011 p345","metadata":[{"label":"streets","value":"8"},{"label":"intersections","value":"8"}],"created":"2026-09-21T13:17:29Z","modified":"2026-09-21T13:17:29Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195103:07660_03_1951-0345/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195103:07660_03_1951-0345/info.json","type":"ImageService2","height":5400,"width":4352},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"-0.0,4139.1 -0.0,1302.3 786.6,1301.2 780.0,144.0 3396.0,185.6 3346.9,4277.0 4029.2,5400.0 2890.9,5400.0 2126.7,4171.8 -0.0,4139.1\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195103:07660_03_1951-0345/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[3760.0,4632.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.0549145,42.126222]}},{"type":"Feature","properties":{"resourceCoords":[780.0,144.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.0636682,42.1299964]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195103:07660_03_1951-0346/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Erie, Pennsylvania | 1951 | sanborn07660_011 p346","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T13:17:29Z","modified":"2026-09-21T13:17:29Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195103:07660_03_1951-0346/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195103:07660_03_1951-0346/info.json","type":"ImageService2","height":5400,"width":4352},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"-0.0,4327.5 -0.0,175.2 108.3,204.2 109.9,512.9 227.8,386.4 379.2,311.2 999.7,438.0 4352.0,425.5 4352.0,2726.2 3839.0,2736.6 3878.0,4653.2 1624.3,4672.2 1623.4,4593.6 170.3,4603.2 -0.0,4327.5\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195103:07660_03_1951-0346/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.0593877227865,42.13181018344781]}},{"type":"Feature","properties":{"resourceCoords":[4352.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.0521171567477,42.13442467580391]}},{"type":"Feature","properties":{"resourceCoords":[4352.0,5400.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.04777353413117,42.12768695112731]}},{"type":"Feature","properties":{"resourceCoords":[0.0,5400.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.05504410016997,42.12507245877121]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195103:07660_03_1951-0347/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Erie, Pennsylvania | 1951 | sanborn07660_011 p347","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T13:17:29Z","modified":"2026-09-21T13:17:29Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195103:07660_03_1951-0347/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195103:07660_03_1951-0347/info.json","type":"ImageService2","height":5400,"width":4352},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"-0.0,3814.7 -0.0,-0.0 4352.0,0.0 4352.0,4931.8 2113.5,4890.0 -0.0,3814.7\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195103:07660_03_1951-0347/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.05077298516716,42.13070192233872]}},{"type":"Feature","properties":{"resourceCoords":[4352.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.0471559080717,42.13207103008697]}},{"type":"Feature","properties":{"resourceCoords":[4352.0,5400.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.04488129649175,42.128719077288864]}},{"type":"Feature","properties":{"resourceCoords":[0.0,5400.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.04849837358722,42.12734996954061]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195103:07660_03_1951-0348/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Erie, Pennsylvania | 1951 | sanborn07660_011 p348","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T13:17:29Z","modified":"2026-09-21T13:17:29Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195103:07660_03_1951-0348/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195103:07660_03_1951-0348/info.json","type":"ImageService2","height":5400,"width":4352},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"0.0,0.0 4352.0,0.0 4352.0,3527.2 2272.0,4897.9 498.4,5400.0 -0.0,5400.0 0.0,0.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195103:07660_03_1951-0348/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.04806353076326,42.13174215323012]}},{"type":"Feature","properties":{"resourceCoords":[4352.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.04438437078024,42.13296947940985]}},{"type":"Feature","properties":{"resourceCoords":[4352.0,5400.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.04234528117918,42.12956004682524]}},{"type":"Feature","properties":{"resourceCoords":[0.0,5400.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.0460244411622,42.12833272064551]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195103:07660_03_1951-0349/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Erie, Pennsylvania | 1951 | sanborn07660_011 p349","metadata":[{"label":"streets","value":"4"},{"label":"intersections","value":"3"}],"created":"2026-09-21T13:17:29Z","modified":"2026-09-21T13:17:29Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195103:07660_03_1951-0349/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195103:07660_03_1951-0349/info.json","type":"ImageService2","height":5400,"width":4352},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1000.7,4988.9 1100.5,1462.7 -0.0,1436.3 0.0,-0.0 4352.0,0.0 4352.0,5400.0 2289.7,5400.0 2284.4,4958.4 1000.7,4988.9\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195103:07660_03_1951-0349/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[2552.0,3728.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.0422568,42.1319906]}},{"type":"Feature","properties":{"resourceCoords":[2552.0,4952.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.0417654,42.1312279]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195103:07660_03_1951-0356/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Erie, Pennsylvania | 1951 | sanborn07660_011 p356","metadata":[{"label":"streets","value":"7"},{"label":"intersections","value":"7"}],"created":"2026-09-21T13:17:29Z","modified":"2026-09-21T13:17:29Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195103:07660_03_1951-0356/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195103:07660_03_1951-0356/info.json","type":"ImageService2","height":5400,"width":4352},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"4107.3,3150.5 4116.9,3883.3 1981.5,5040.6 -0.0,5065.3 -0.0,-0.0 4352.0,0.0 4352.0,2093.1 3613.7,2107.7 4107.3,3150.5\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195103:07660_03_1951-0356/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[428.0,4480.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.0335068,42.134334]}},{"type":"Feature","properties":{"resourceCoords":[2672.0,3840.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.0302358,42.1364773]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195103:07660_03_1951-0357/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Erie, Pennsylvania | 1951 | sanborn07660_011 p357","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"7"}],"created":"2026-09-21T13:17:29Z","modified":"2026-09-21T13:17:29Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195103:07660_03_1951-0357/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195103:07660_03_1951-0357/info.json","type":"ImageService2","height":5400,"width":4352},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"820.5,5400.0 -0.0,5400.0 0.0,-0.0 573.3,0.0 573.9,1093.1 867.8,1093.0 883.5,608.4 3508.0,620.0 3485.0,4518.0 828.4,4502.5 820.5,5400.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195103:07660_03_1951-0357/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[2336.0,4516.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.0641615,42.1205623]}},{"type":"Feature","properties":{"resourceCoords":[3508.0,620.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.0648181,42.1233522]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195103:07660_03_1951-0358/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Erie, Pennsylvania | 1951 | sanborn07660_011 p358","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"7"}],"created":"2026-09-21T13:17:29Z","modified":"2026-09-21T13:17:29Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195103:07660_03_1951-0358/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195103:07660_03_1951-0358/info.json","type":"ImageService2","height":5400,"width":4352},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"693.1,601.9 4352.0,589.2 4352.0,4515.5 700.0,4524.0 693.1,601.9\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195103:07660_03_1951-0358/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[3380.0,1900.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.0620377,42.1233677]}},{"type":"Feature","properties":{"resourceCoords":[700.0,4524.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.0631979,42.1209199]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195103:07660_03_1951-0359/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Erie, Pennsylvania | 1951 | sanborn07660_011 p359","metadata":[{"label":"streets","value":"7"},{"label":"intersections","value":"9"}],"created":"2026-09-21T13:17:29Z","modified":"2026-09-21T13:17:29Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195103:07660_03_1951-0359/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195103:07660_03_1951-0359/info.json","type":"ImageService2","height":5400,"width":4352},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"3645.8,667.8 3636.0,4580.0 1909.5,4579.0 1921.1,668.6 3645.8,667.8\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195103:07660_03_1951-0359/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[944.0,4580.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.0609573,42.1217427]}},{"type":"Feature","properties":{"resourceCoords":[3636.0,4580.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.0587012,42.1225738]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195103:07660_03_1951-0360/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Erie, Pennsylvania | 1951 | sanborn07660_011 p360","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"6"}],"created":"2026-09-21T13:17:29Z","modified":"2026-09-21T13:17:29Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195103:07660_03_1951-0360/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195103:07660_03_1951-0360/info.json","type":"ImageService2","height":5400,"width":4352},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"89.3,4625.5 100.0,716.0 2739.3,769.6 4352.0,3260.5 4352.0,3347.7 2772.7,3334.9 2756.0,4628.0 89.3,4625.5\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195103:07660_03_1951-0360/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[2756.0,4628.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.056464,42.1233965]}},{"type":"Feature","properties":{"resourceCoords":[100.0,716.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.0603197,42.1250113]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195103:07660_03_1951-0361/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Erie, Pennsylvania | 1951 | sanborn07660_011 p361","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"8"}],"created":"2026-09-21T13:17:29Z","modified":"2026-09-21T13:17:29Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195103:07660_03_1951-0361/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195103:07660_03_1951-0361/info.json","type":"ImageService2","height":5400,"width":4352},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"773.9,5400.0 -0.0,5400.0 -0.0,1510.5 774.4,1505.7 774.4,1494.4 775.7,1272.2 778.1,705.4 776.8,604.7 3443.7,603.9 3444.6,4522.6 772.8,4533.3 773.9,5400.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195103:07660_03_1951-0361/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[772.0,3220.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.0643521,42.1184726]}},{"type":"Feature","properties":{"resourceCoords":[3444.0,1912.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.0626563,42.1201068]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195103:07660_03_1951-0362/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Erie, Pennsylvania | 1951 | sanborn07660_011 p362","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"8"}],"created":"2026-09-21T13:17:29Z","modified":"2026-09-21T13:17:29Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195103:07660_03_1951-0362/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195103:07660_03_1951-0362/info.json","type":"ImageService2","height":5400,"width":4352},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"3335.3,588.2 3330.6,4495.8 663.8,4499.2 664.0,588.0 3335.3,588.2\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195103:07660_03_1951-0362/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[3332.0,3192.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.0598798,42.1201201]}},{"type":"Feature","properties":{"resourceCoords":[664.0,588.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.0631979,42.1209199]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195103:07660_03_1951-0363/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Erie, Pennsylvania | 1951 | sanborn07660_011 p363","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"8"}],"created":"2026-09-21T13:17:29Z","modified":"2026-09-21T13:17:29Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195103:07660_03_1951-0363/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195103:07660_03_1951-0363/info.json","type":"ImageService2","height":5400,"width":4352},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"3461.8,643.0 3452.0,4508.0 790.2,4508.2 799.5,643.0 3461.8,643.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195103:07660_03_1951-0363/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[796.0,1932.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.0604183,42.1209305]}},{"type":"Feature","properties":{"resourceCoords":[3452.0,4508.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.0570844,42.1201388]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195103:07660_03_1951-0364/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Erie, Pennsylvania | 1951 | sanborn07660_011 p364","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"8"}],"created":"2026-09-21T13:17:29Z","modified":"2026-09-21T13:17:29Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195103:07660_03_1951-0364/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195103:07660_03_1951-0364/info.json","type":"ImageService2","height":5400,"width":4352},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"3356.0,624.0 3360.6,4492.0 726.4,4507.4 713.6,637.5 3356.0,624.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195103:07660_03_1951-0364/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[3356.0,3216.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.0553892,42.1217642]}},{"type":"Feature","properties":{"resourceCoords":[3356.0,624.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.056464,42.1233965]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195103:07660_03_1951-0365/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Erie, Pennsylvania | 1951 | sanborn07660_011 p365","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"8"}],"created":"2026-09-21T13:17:29Z","modified":"2026-09-21T13:17:29Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195103:07660_03_1951-0365/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195103:07660_03_1951-0365/info.json","type":"ImageService2","height":5400,"width":4352},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"59.6,0.0 59.3,1429.6 830.4,1429.8 829.6,566.2 3492.0,556.0 3491.9,4688.5 827.6,4693.2 828.1,2813.2 -0.0,2815.7 0.0,-0.0 59.6,0.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195103:07660_03_1951-0365/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[3492.0,3276.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.0604453,42.1167874]}},{"type":"Feature","properties":{"resourceCoords":[3492.0,556.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.0615754,42.1184841]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195103:07660_03_1951-0366/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Erie, Pennsylvania | 1951 | sanborn07660_011 p366","metadata":[{"label":"streets","value":"5"},{"label":"intersections","value":"6"}],"created":"2026-09-21T13:17:29Z","modified":"2026-09-21T13:17:29Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195103:07660_03_1951-0366/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195103:07660_03_1951-0366/info.json","type":"ImageService2","height":5400,"width":4352},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"3476.8,584.2 3475.1,3312.8 808.0,3316.0 807.0,588.7 3476.8,584.2\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195103:07660_03_1951-0366/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[3476.0,1888.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.0588008,42.1184962]}},{"type":"Feature","properties":{"resourceCoords":[808.0,3316.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.0604453,42.1167874]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195103:07660_03_1951-0367/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Erie, Pennsylvania | 1951 | sanborn07660_011 p367","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T13:17:29Z","modified":"2026-09-21T13:17:29Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195103:07660_03_1951-0367/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195103:07660_03_1951-0367/info.json","type":"ImageService2","height":5400,"width":4352},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1557.5,2757.0 1645.9,16.0 4352.0,109.9 4272.5,2852.6 3376.4,2821.1 3293.5,5400.0 -0.0,5400.0 -0.0,2702.2 1557.5,2757.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195103:07660_03_1951-0367/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.06068894845554,42.11877902328897]}},{"type":"Feature","properties":{"resourceCoords":[4352.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.0571405941286,42.12020279023782]}},{"type":"Feature","properties":{"resourceCoords":[4352.0,5400.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.05477564119275,42.11691387158838]}},{"type":"Feature","properties":{"resourceCoords":[0.0,5400.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.05832399551969,42.115490104639534]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195103:07660_03_1951-0368/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Erie, Pennsylvania | 1951 | sanborn07660_011 p368","metadata":[{"label":"streets","value":"5"},{"label":"intersections","value":"6"}],"created":"2026-09-21T13:17:29Z","modified":"2026-09-21T13:17:29Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195103:07660_03_1951-0368/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195103:07660_03_1951-0368/info.json","type":"ImageService2","height":5400,"width":4352},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1698.6,2848.0 820.7,2847.8 817.4,113.6 3493.8,112.8 3481.7,2848.4 2573.8,2848.2 2574.3,5400.0 1692.7,5400.0 1698.6,2848.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195103:07660_03_1951-0368/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[824.0,1420.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.0565453,42.1193268]}},{"type":"Feature","properties":{"resourceCoords":[3488.0,1420.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.0543179,42.1201469]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195103:07660_03_1951-0369/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Erie, Pennsylvania | 1951 | sanborn07660_011 p369","metadata":[{"label":"streets","value":"7"},{"label":"intersections","value":"8"}],"created":"2026-09-21T13:17:29Z","modified":"2026-09-21T13:17:29Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195103:07660_03_1951-0369/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195103:07660_03_1951-0369/info.json","type":"ImageService2","height":5400,"width":4352},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"770.8,4530.6 794.5,611.9 4044.2,533.8 3599.3,1097.3 3580.6,1905.0 4085.2,1939.3 4352.0,2229.3 4352.0,4522.9 770.8,4530.6\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195103:07660_03_1951-0369/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[776.0,3228.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.055923,42.1225753]}},{"type":"Feature","properties":{"resourceCoords":[3572.0,4532.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.0530441,42.1226226]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195103:07660_03_1951-0370/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Erie, Pennsylvania | 1951 | sanborn07660_011 p370","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"8"}],"created":"2026-09-21T13:17:29Z","modified":"2026-09-21T13:17:29Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195103:07660_03_1951-0370/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195103:07660_03_1951-0370/info.json","type":"ImageService2","height":5400,"width":4352},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"3532.0,516.0 3519.2,4556.9 706.8,4558.6 718.3,511.8 3532.0,516.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195103:07660_03_1951-0370/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[712.0,3124.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.0543179,42.1201469]}},{"type":"Feature","properties":{"resourceCoords":[3532.0,516.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.0530441,42.1226226]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195103:07660_03_1951-0371__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Erie, Pennsylvania | 1951 | sanborn07660_011 p371 [2]","metadata":[{"label":"streets","value":"7"},{"label":"intersections","value":"9"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"4352.0"},{"label":"split_canvas_h","value":"5400.0"}],"created":"2026-09-21T13:17:29Z","modified":"2026-09-21T13:17:29Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195103:07660_03_1951-0371__2/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195103:07660_03_1951-0371/info.json","type":"ImageService2","height":5400,"width":4352},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"2266.3,1297.5 1513.7,2252.5 1495.8,3053.6 2261.5,3700.0 2263.0,5400.0 3497.4,5400.0 3491.7,4773.8 4352.0,4761.8 4352.0,0.0 1485.7,0.0 2266.3,1297.5\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195103:07660_03_1951-0371__2/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1984.0,160.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.0549145,42.126222]}},{"type":"Feature","properties":{"resourceCoords":[4220.0,160.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.0530255,42.1269128]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195103:07660_03_1951-0372/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Erie, Pennsylvania | 1951 | sanborn07660_011 p372","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T13:17:29Z","modified":"2026-09-21T13:17:29Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195103:07660_03_1951-0372/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195103:07660_03_1951-0372/info.json","type":"ImageService2","height":5400,"width":4352},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"3580.9,4298.1 4299.1,4845.0 913.7,4844.2 957.6,173.0 3606.8,194.5 3580.9,4298.1\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195103:07660_03_1951-0372/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.05377790080576,42.12676491893523]}},{"type":"Feature","properties":{"resourceCoords":[4352.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.05019192663038,42.128123334578824]}},{"type":"Feature","properties":{"resourceCoords":[4352.0,5400.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.0479352424065,42.12479996388871]}},{"type":"Feature","properties":{"resourceCoords":[0.0,5400.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.05152121658188,42.12344154824512]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195103:07660_03_1951-0373/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Erie, Pennsylvania | 1951 | sanborn07660_011 p373","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"8"}],"created":"2026-09-21T13:17:29Z","modified":"2026-09-21T13:17:29Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195103:07660_03_1951-0373/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195103:07660_03_1951-0373/info.json","type":"ImageService2","height":5400,"width":4352},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"810.9,1071.8 1589.1,1064.5 1589.7,813.7 2831.4,817.6 2832.8,1056.9 3562.1,1052.8 3553.6,830.7 4352.0,1477.1 4352.0,2364.3 3560.0,2356.0 3555.7,5087.4 792.9,5085.5 810.9,1071.8\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195103:07660_03_1951-0373/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[800.0,3660.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.0519765,42.1210089]}},{"type":"Feature","properties":{"resourceCoords":[3560.0,2356.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.0502062,42.1226728]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195103:07660_03_1951-0374/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Erie, Pennsylvania | 1951 | sanborn07660_011 p374","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T13:17:29Z","modified":"2026-09-21T13:17:29Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195103:07660_03_1951-0374/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195103:07660_03_1951-0374/info.json","type":"ImageService2","height":5400,"width":4352},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"735.5,2216.6 1545.0,2233.7 1550.4,1330.0 738.2,662.9 745.5,889.2 -0.0,885.4 0.0,0.0 4352.0,34.7 4352.0,634.5 3250.4,591.2 3248.4,726.8 4352.0,1453.5 4352.0,3224.9 3562.7,2719.9 3531.2,5028.8 714.6,4998.8 735.5,2216.6\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195103:07660_03_1951-0374/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.05172192669522,42.12379570544698]}},{"type":"Feature","properties":{"resourceCoords":[4352.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.04817359830602,42.12513911543106]}},{"type":"Feature","properties":{"resourceCoords":[4352.0,5400.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.04594194766884,42.12185047859818]}},{"type":"Feature","properties":{"resourceCoords":[0.0,5400.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.04949027605804,42.1205070686141]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195103:07660_03_1951-0375/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Erie, Pennsylvania | 1951 | sanborn07660_011 p375","metadata":[{"label":"streets","value":"9"},{"label":"intersections","value":"14"}],"created":"2026-09-21T13:17:29Z","modified":"2026-09-21T13:17:29Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195103:07660_03_1951-0375/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195103:07660_03_1951-0375/info.json","type":"ImageService2","height":5400,"width":4352},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1055.2,4726.5 372.0,4216.2 372.2,130.6 4352.0,145.4 4352.0,5400.0 3922.8,5400.0 3924.8,4737.9 1055.2,4726.5\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195103:07660_03_1951-0375/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[376.0,1192.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.0502815,42.127114]}},{"type":"Feature","properties":{"resourceCoords":[3924.0,2252.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.0468789,42.1275488]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195103:07660_03_1951-0376/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Erie, Pennsylvania | 1951 | sanborn07660_011 p376","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T13:17:29Z","modified":"2026-09-21T13:17:29Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195103:07660_03_1951-0376/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195103:07660_03_1951-0376/info.json","type":"ImageService2","height":5400,"width":4352},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"344.2,2763.0 1142.5,3257.2 1116.4,1482.4 -0.0,821.7 -0.0,634.6 1104.4,661.7 1095.5,60.8 3945.6,0.0 3951.3,673.6 4351.4,672.0 4351.7,2242.2 4352.0,2242.2 4352.0,4763.8 3877.7,5001.9 346.7,5076.8 344.2,2763.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195103:07660_03_1951-0376/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.04908149425899,42.12482751752939]}},{"type":"Feature","properties":{"resourceCoords":[4352.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.04551455048903,42.12612906925501]}},{"type":"Feature","properties":{"resourceCoords":[4352.0,5400.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.04335239947534,42.12282323239276]}},{"type":"Feature","properties":{"resourceCoords":[0.0,5400.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.04691934324529,42.12152168066714]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195103:07660_03_1951-0377/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Erie, Pennsylvania | 1951 | sanborn07660_011 p377","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T13:17:29Z","modified":"2026-09-21T13:17:29Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195103:07660_03_1951-0377/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195103:07660_03_1951-0377/info.json","type":"ImageService2","height":5400,"width":4352},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1057.8,727.5 3362.7,108.0 4352.0,100.9 4352.0,5400.0 3890.0,5400.0 1034.0,4734.5 1057.8,727.5\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195103:07660_03_1951-0377/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.04931963923244,42.128583702639]}},{"type":"Feature","properties":{"resourceCoords":[4352.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.04207077369114,42.13126967970895]}},{"type":"Feature","properties":{"resourceCoords":[4352.0,5400.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.03760860736917,42.124551736361134]}},{"type":"Feature","properties":{"resourceCoords":[0.0,5400.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.04485747291046,42.12186575929118]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195103:07660_03_1951-0378/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Erie, Pennsylvania | 1951 | sanborn07660_011 p378","metadata":[{"label":"streets","value":"14"},{"label":"intersections","value":"24"}],"created":"2026-09-21T13:17:29Z","modified":"2026-09-21T13:17:29Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195103:07660_03_1951-0378/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195103:07660_03_1951-0378/info.json","type":"ImageService2","height":5400,"width":4352},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"-0.0,244.6 2695.9,0.0 3210.1,0.0 3727.9,0.0 4352.0,4861.0 4352.0,5400.0 -0.0,5400.0 -0.0,244.6\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195103:07660_03_1951-0378/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1808.0,668.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.0413017,42.1305081]}},{"type":"Feature","properties":{"resourceCoords":[2448.0,3800.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.0376754,42.1269381]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195103:07660_03_1951-0379/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Erie, Pennsylvania | 1951 | sanborn07660_011 p379","metadata":[{"label":"streets","value":"8"},{"label":"intersections","value":"12"}],"created":"2026-09-21T13:17:29Z","modified":"2026-09-21T13:17:29Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195103:07660_03_1951-0379/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195103:07660_03_1951-0379/info.json","type":"ImageService2","height":5400,"width":4352},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"533.8,5400.0 558.4,544.5 -0.0,541.5 -0.0,7.9 3123.6,0.0 3118.2,1116.8 3549.2,1113.3 3544.9,1694.9 3712.3,1693.2 3717.5,2330.1 4352.0,2324.4 4352.0,5400.0 3744.4,5400.0 3169.7,5400.0 1999.6,5400.0 533.8,5400.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195103:07660_03_1951-0379/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[3724.0,3096.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.0311036,42.1312167]}},{"type":"Feature","properties":{"resourceCoords":[2032.0,1720.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.0351102,42.1319242]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195103:07660_03_1951-0380/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Erie, Pennsylvania | 1951 | sanborn07660_011 p380","metadata":[{"label":"streets","value":"8"},{"label":"intersections","value":"12"}],"created":"2026-09-21T13:17:29Z","modified":"2026-09-21T13:17:29Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195103:07660_03_1951-0380/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195103:07660_03_1951-0380/info.json","type":"ImageService2","height":5400,"width":4352},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"417.1,2374.3 412.5,1733.6 244.2,1735.2 249.2,1150.2 1790.1,1140.4 1785.8,0.0 3924.6,0.0 3948.3,2360.4 4352.0,2358.0 4352.0,5400.0 3983.3,5400.0 3978.8,5031.0 3152.0,5031.6 3160.9,5400.0 1051.6,5400.0 1055.2,2369.4 417.1,2374.3\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195103:07660_03_1951-0380/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[432.0,4464.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.0300084,42.1295682]}},{"type":"Feature","properties":{"resourceCoords":[3956.0,3136.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.0251443,42.133374]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195103:07660_03_1951-0381/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Erie, Pennsylvania | 1951 | sanborn07660_011 p381","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"7"}],"created":"2026-09-21T13:17:29Z","modified":"2026-09-21T13:17:29Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195103:07660_03_1951-0381/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195103:07660_03_1951-0381/info.json","type":"ImageService2","height":5400,"width":4352},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"-0.0,5400.0 0.0,-0.0 4352.0,0.0 4352.0,5400.0 -0.0,5400.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195103:07660_03_1951-0381/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[3260.0,4516.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.0681899,42.1108089]}},{"type":"Feature","properties":{"resourceCoords":[460.0,580.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.0722415,42.1124342]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195103:07660_03_1951-0381A/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Erie, Pennsylvania | 1951 | sanborn07660_011 p381A","metadata":[{"label":"streets","value":"5"},{"label":"intersections","value":"4"}],"created":"2026-09-21T13:17:29Z","modified":"2026-09-21T13:17:29Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195103:07660_03_1951-0381A/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195103:07660_03_1951-0381A/info.json","type":"ImageService2","height":5400,"width":4352},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"489.8,4597.3 494.9,86.5 -0.0,85.9 -0.0,-0.0 4352.0,0.0 4352.0,182.5 2665.4,189.4 2661.9,4590.5 489.8,4597.3\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195103:07660_03_1951-0381A/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[2180.0,4592.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.0658146,42.1116858]}},{"type":"Feature","properties":{"resourceCoords":[2180.0,640.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.0674816,42.114195]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195103:07660_03_1951-0381B/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Erie, Pennsylvania | 1951 | sanborn07660_011 p381B","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T13:17:29Z","modified":"2026-09-21T13:17:29Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195103:07660_03_1951-0381B/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195103:07660_03_1951-0381B/info.json","type":"ImageService2","height":5400,"width":4352},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"-0.0,5400.0 -0.0,1270.9 3824.4,1346.9 3769.6,4458.0 3048.5,4444.5 3033.9,5400.0 -0.0,5400.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195103:07660_03_1951-0381B/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.07097531835886,42.11008779187551]}},{"type":"Feature","properties":{"resourceCoords":[4352.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.06733532261322,42.11148487860042]}},{"type":"Feature","properties":{"resourceCoords":[4352.0,5400.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.06501500712082,42.108110553297465]}},{"type":"Feature","properties":{"resourceCoords":[0.0,5400.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.06865500286646,42.10671346657255]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195103:07660_03_1951-0381C/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Erie, Pennsylvania | 1951 | sanborn07660_011 p381C","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T13:17:29Z","modified":"2026-09-21T13:17:29Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195103:07660_03_1951-0381C/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195103:07660_03_1951-0381C/info.json","type":"ImageService2","height":5400,"width":4352},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"2547.0,5400.0 -0.0,5400.0 -0.0,1423.8 366.5,1424.7 364.2,540.9 2532.7,536.6 2547.0,5400.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195103:07660_03_1951-0381C/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.06779715717259,42.11138447839384]}},{"type":"Feature","properties":{"resourceCoords":[4352.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.06407156365225,42.11275300231425]}},{"type":"Feature","properties":{"resourceCoords":[4352.0,5400.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.06179864055314,42.10929939570785]}},{"type":"Feature","properties":{"resourceCoords":[0.0,5400.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.06552423407348,42.10793087178744]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195103:07660_03_1951-0381D/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Erie, Pennsylvania | 1951 | sanborn07660_011 p381D","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T13:17:29Z","modified":"2026-09-21T13:17:29Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195103:07660_03_1951-0381D/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195103:07660_03_1951-0381D/info.json","type":"ImageService2","height":5400,"width":4352},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"-0.0,5400.0 -0.0,-0.0 231.0,0.0 227.6,1141.9 1772.1,1146.6 1780.1,709.8 1781.0,660.2 2148.1,668.2 2138.4,1137.5 3453.6,1164.7 3441.2,1862.2 3486.3,1893.9 3561.8,1653.4 4352.0,1668.8 4352.0,5400.0 -0.0,5400.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195103:07660_03_1951-0381D/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.06999774703421,42.10796855030343]}},{"type":"Feature","properties":{"resourceCoords":[4352.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.06285891623921,42.11072915935515]}},{"type":"Feature","properties":{"resourceCoords":[4352.0,5400.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.0582742490402,42.10411105018881]}},{"type":"Feature","properties":{"resourceCoords":[0.0,5400.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.0654130798352,42.10135044113709]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195103:07660_03_1951-0382/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Erie, Pennsylvania | 1951 | sanborn07660_011 p382","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T13:17:29Z","modified":"2026-09-21T13:17:29Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195103:07660_03_1951-0382/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195103:07660_03_1951-0382/info.json","type":"ImageService2","height":5400,"width":4352},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"-0.0,-0.0 2612.9,0.0 2614.4,937.1 3757.8,938.6 3752.4,5202.6 3848.8,5268.5 4352.0,5271.6 4352.0,5400.0 899.2,5400.0 895.6,5193.1 115.3,5191.8 54.8,5400.0 -0.0,5400.0 -0.0,-0.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195103:07660_03_1951-0382/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.06725662161178,42.11463313607471]}},{"type":"Feature","properties":{"resourceCoords":[4352.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.05995973866925,42.1173333022086]}},{"type":"Feature","properties":{"resourceCoords":[4352.0,5400.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.05547499078686,42.11056936483238]}},{"type":"Feature","properties":{"resourceCoords":[0.0,5400.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.06277187372939,42.10786919869849]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195103:07660_03_1951-0383/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Erie, Pennsylvania | 1951 | sanborn07660_011 p383","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T13:17:29Z","modified":"2026-09-21T13:17:29Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195103:07660_03_1951-0383/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195103:07660_03_1951-0383/info.json","type":"ImageService2","height":5400,"width":4352},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"299.8,3577.5 300.6,2895.6 120.1,2895.4 118.8,213.4 4310.2,221.3 4309.4,1581.0 4352.0,1580.9 4352.0,1654.7 4310.1,1654.7 4352.0,5400.0 -0.0,5400.0 -0.0,5312.2 297.7,5314.0 298.2,4855.6 122.9,4855.0 120.4,3578.5 299.8,3577.5\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195103:07660_03_1951-0383/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.05410383757949,42.11944992621041]}},{"type":"Feature","properties":{"resourceCoords":[4352.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.04687723383684,42.1221233346871]}},{"type":"Feature","properties":{"resourceCoords":[4352.0,5400.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.04243658792069,42.115425056760145]}},{"type":"Feature","properties":{"resourceCoords":[0.0,5400.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.04966319166334,42.11275164828345]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195103:07660_03_1951-0384/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Erie, Pennsylvania | 1951 | sanborn07660_011 p384","metadata":[{"label":"streets","value":"16"},{"label":"intersections","value":"30"}],"created":"2026-09-21T13:17:29Z","modified":"2026-09-21T13:17:29Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195103:07660_03_1951-0384/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195103:07660_03_1951-0384/info.json","type":"ImageService2","height":5400,"width":4352},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"644.3,1593.0 602.4,1593.5 597.8,252.9 2359.1,184.5 2534.8,94.5 2535.0,0.0 2685.2,0.0 4069.1,327.7 4066.2,656.6 4352.0,659.1 4352.0,5400.0 -0.0,5400.0 -0.0,5364.2 659.4,5358.4 603.3,1666.1 644.5,1665.9 644.3,1593.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195103:07660_03_1951-0384/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[2616.0,4376.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.0399258,42.1178628]}},{"type":"Feature","properties":{"resourceCoords":[1324.0,4376.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.0421193,42.1170692]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195103:07660_03_1951-0385/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Erie, Pennsylvania | 1951 | sanborn07660_011 p385","metadata":[{"label":"streets","value":"10"},{"label":"intersections","value":"15"}],"created":"2026-09-21T13:17:29Z","modified":"2026-09-21T13:17:29Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195103:07660_03_1951-0385/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195103:07660_03_1951-0385/info.json","type":"ImageService2","height":5400,"width":4352},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"2410.8,1635.4 2408.0,360.0 3285.1,356.6 3287.4,1622.4 3724.7,1620.6 3719.2,354.9 4169.5,353.1 4174.0,3007.4 4352.0,3006.6 4352.0,3681.4 4175.1,3683.4 4179.1,4946.8 4352.0,4946.3 4352.0,5400.0 96.1,5400.0 -0.0,5334.8 -0.0,1073.2 188.7,1072.3 186.6,368.7 744.1,366.5 789.7,1699.1 2410.8,1635.4\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195103:07660_03_1951-0385/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[2408.0,360.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.0567005,42.1181654]}},{"type":"Feature","properties":{"resourceCoords":[1524.0,4960.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.0543808,42.1118525]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195103:07660_03_1951-0399/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Erie, Pennsylvania | 1951 | sanborn07660_011 p399","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T13:17:29Z","modified":"2026-09-21T13:17:29Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195103:07660_03_1951-0399/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195103:07660_03_1951-0399/info.json","type":"ImageService2","height":5400,"width":4352},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"-0.0,5400.0 -0.0,-0.0 4352.0,0.0 4352.0,5400.0 -0.0,5400.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195103:07660_03_1951-0399/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.0504377638442,42.14922142332651]}},{"type":"Feature","properties":{"resourceCoords":[4352.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.04322340948295,42.151812786625946]}},{"type":"Feature","properties":{"resourceCoords":[4352.0,5400.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.03891702142273,42.14512900337201]}},{"type":"Feature","properties":{"resourceCoords":[0.0,5400.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.04613137578399,42.142537640072575]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195103:07660_03_1951-0399A/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Erie, Pennsylvania | 1951 | sanborn07660_011 p399A","metadata":[{"label":"streets","value":"9"},{"label":"intersections","value":"14"}],"created":"2026-09-21T13:17:29Z","modified":"2026-09-21T13:17:29Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195103:07660_03_1951-0399A/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195103:07660_03_1951-0399A/info.json","type":"ImageService2","height":5400,"width":4352},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"197.9,1956.1 -0.0,1956.6 -0.0,667.7 3945.5,691.6 3952.7,0.0 4352.0,0.0 4352.0,4456.5 2745.1,4438.1 2734.1,5400.0 -0.0,5400.0 -0.0,5224.9 226.7,5224.3 227.3,4915.6 177.7,4915.5 197.9,1956.1\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195103:07660_03_1951-0399A/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[2724.0,1140.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.0406082,42.1438141]}},{"type":"Feature","properties":{"resourceCoords":[1752.0,376.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.0428839,42.1441734]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195103:07660_03_1951-0399B/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Erie, Pennsylvania | 1951 | sanborn07660_011 p399B","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T13:17:29Z","modified":"2026-09-21T13:17:29Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195103:07660_03_1951-0399B/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195103:07660_03_1951-0399B/info.json","type":"ImageService2","height":5400,"width":4352},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"4266.8,4569.8 1080.9,4568.7 -0.0,5061.1 -0.0,0.0 2372.6,-0.0 2375.7,329.4 4064.8,313.3 4080.2,1331.6 4291.5,1330.4 4266.8,4569.8\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195103:07660_03_1951-0399B/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.02183515660278,42.142266847154495]}},{"type":"Feature","properties":{"resourceCoords":[4352.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.01831584395288,42.13699711794179]}},{"type":"Feature","properties":{"resourceCoords":[4352.0,5400.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.02707193041304,42.13373615506384]}},{"type":"Feature","properties":{"resourceCoords":[0.0,5400.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.03059124306294,42.13900588427655]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195103:07660_03_1951-0399C/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Erie, Pennsylvania | 1951 | sanborn07660_011 p399C","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T13:17:29Z","modified":"2026-09-21T13:17:29Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195103:07660_03_1951-0399C/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195103:07660_03_1951-0399C/info.json","type":"ImageService2","height":5400,"width":4352},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"144.6,4117.9 207.3,1353.0 -0.0,1351.0 -0.0,352.3 1058.2,358.1 1058.7,267.8 1666.2,359.9 3437.1,373.8 3437.7,292.6 3678.8,297.5 3677.2,373.4 4352.0,361.0 4352.0,5400.0 2811.3,5400.0 2834.8,4561.6 3207.8,4566.1 3218.5,4192.2 144.6,4117.9\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195103:07660_03_1951-0399C/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.01847804136963,42.13737908391507]}},{"type":"Feature","properties":{"resourceCoords":[4352.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.01478185909495,42.13204601657881]}},{"type":"Feature","properties":{"resourceCoords":[4352.0,5400.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.0236424899758,42.12862089849679]}},{"type":"Feature","properties":{"resourceCoords":[0.0,5400.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.02733867225048,42.13395396583305]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195103:07660_03_1951-0453__4/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Erie, Pennsylvania | 1951 | sanborn07660_011 p453 [4]","metadata":[{"label":"streets","value":"5"},{"label":"intersections","value":"5"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"2322.0"},{"label":"split_canvas_w","value":"4352.0"},{"label":"split_canvas_h","value":"3078.0"}],"created":"2026-09-21T13:17:29Z","modified":"2026-09-21T13:17:29Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195103:07660_03_1951-0453__4/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195103:07660_03_1951-0453/info.json","type":"ImageService2","height":5400,"width":4352},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"4352.0,5400.0 4352.0,2671.0 322.6,2478.2 303.3,3215.9 167.4,3213.0 149.1,3688.2 -0.0,3683.0 -0.0,5400.0 4352.0,5400.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195103:07660_03_1951-0453__4/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1772.0,3773.1],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.0144593,42.1331671]}},{"type":"Feature","properties":{"resourceCoords":[1772.0,2549.9],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.0150049,42.1339201]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195103:07660_03_1951-0454__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Erie, Pennsylvania | 1951 | sanborn07660_011 p454 [1]","metadata":[{"label":"streets","value":"2"},{"label":"intersections","value":"1"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"4352.0"},{"label":"split_canvas_h","value":"1509.6"}],"created":"2026-09-21T13:17:29Z","modified":"2026-09-21T13:17:29Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195103:07660_03_1951-0454__1/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195103:07660_03_1951-0454/info.json","type":"ImageService2","height":5400,"width":4352},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"0.0,0.0 0.0,1509.6 2955.6,1494.0 4352.0,1487.2 4352.0,0.0 0.0,0.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195103:07660_03_1951-0454__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":[-80.0197484040365,42.14287889007623]}},{"type":"Feature","properties":{"resourceCoords":[4352.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.01604911017971,42.14417049984333]}},{"type":"Feature","properties":{"resourceCoords":[4352.0,1509.6],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.01544635261027,42.14321872901746]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1509.6],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.01914564646707,42.14192711925037]}},{"type":"Feature","properties":{"resourceCoords":[2232.0,832.9],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.0175186,42.1430162]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195103:07660_03_1951-0454__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Erie, Pennsylvania | 1951 | sanborn07660_011 p454 [2]","metadata":[{"label":"streets","value":"5"},{"label":"intersections","value":"6"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"1494.0"},{"label":"split_canvas_w","value":"4352.0"},{"label":"split_canvas_h","value":"3906.0"}],"created":"2026-09-21T13:17:29Z","modified":"2026-09-21T13:17:29Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195103:07660_03_1951-0454__2/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195103:07660_03_1951-0454/info.json","type":"ImageService2","height":5400,"width":4352},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"4352.0,4888.4 4352.0,2471.2 2951.2,2472.8 2955.6,1520.8 2955.6,1494.0 0.0,1509.6 -0.0,3820.1 235.6,3828.3 236.0,4980.2 4352.0,4888.4\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195103:07660_03_1951-0454__2/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1424.0,1693.9],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.0142587,42.1434254]}},{"type":"Feature","properties":{"resourceCoords":[236.0,4980.2],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.0135733,42.1410476]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195103:07660_03_1951-0455/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Erie, Pennsylvania | 1951 | sanborn07660_011 p455","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T13:17:29Z","modified":"2026-09-21T13:17:29Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195103:07660_03_1951-0455/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195103:07660_03_1951-0455/info.json","type":"ImageService2","height":5400,"width":4352},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"-0.0,-0.0 4352.0,0.0 4352.0,2549.8 3877.4,2672.9 3985.3,4702.0 3727.9,4711.2 3738.7,5013.8 227.8,5070.9 221.0,5400.0 -0.0,5400.0 -0.0,-0.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195103:07660_03_1951-0455/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.02044806009096,42.13919128329567]}},{"type":"Feature","properties":{"resourceCoords":[4352.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.0168476777969,42.14056415467581]}},{"type":"Feature","properties":{"resourceCoords":[4352.0,5400.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.01456653182805,42.13722808479936]}},{"type":"Feature","properties":{"resourceCoords":[0.0,5400.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.0181669141221,42.13585521341923]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195103:07660_03_1951-0456/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Erie, Pennsylvania | 1951 | sanborn07660_011 p456","metadata":[{"label":"streets","value":"10"},{"label":"intersections","value":"14"}],"created":"2026-09-21T13:17:29Z","modified":"2026-09-21T13:17:29Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195103:07660_03_1951-0456/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195103:07660_03_1951-0456/info.json","type":"ImageService2","height":5400,"width":4352},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"3915.6,0.0 4081.6,3800.6 3913.1,3806.6 3979.8,5400.0 3480.4,5400.0 3259.2,4673.0 2059.6,4657.9 2082.7,5400.0 1032.5,5400.0 1016.6,4963.0 -0.0,4939.6 -0.0,2624.4 473.4,2525.4 606.8,9.0 3915.6,0.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195103:07660_03_1951-0456/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1460.0,1248.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.0155647,42.140109]}},{"type":"Feature","properties":{"resourceCoords":[2952.0,3840.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.0131243,42.1390568]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195103:07660_03_1951-0457/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Erie, Pennsylvania | 1951 | sanborn07660_011 p457","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T13:17:29Z","modified":"2026-09-21T13:17:29Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195103:07660_03_1951-0457/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195103:07660_03_1951-0457/info.json","type":"ImageService2","height":5400,"width":4352},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"220.0,364.6 4352.0,287.8 4300.8,4766.0 297.4,5400.0 -0.0,5400.0 -0.0,1895.7 220.0,364.6\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195103:07660_03_1951-0457/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.01845479946805,42.13628768427206]}},{"type":"Feature","properties":{"resourceCoords":[4352.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.01483135919894,42.1376614201815]}},{"type":"Feature","properties":{"resourceCoords":[4352.0,5400.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.01254888192518,42.13430383034461]}},{"type":"Feature","properties":{"resourceCoords":[0.0,5400.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.0161723221943,42.13293009443517]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195103:07660_03_1951-0458/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Erie, Pennsylvania | 1951 | sanborn07660_011 p458","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T13:17:29Z","modified":"2026-09-21T13:17:29Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195103:07660_03_1951-0458/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195103:07660_03_1951-0458/info.json","type":"ImageService2","height":5400,"width":4352},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"-0.0,4750.3 -0.0,0.0 3539.0,0.0 4277.6,721.0 4352.0,1694.6 4352.0,5400.0 465.2,5400.0 -0.0,4750.3\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195103:07660_03_1951-0458/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.0153738249788,42.137456778217]}},{"type":"Feature","properties":{"resourceCoords":[4352.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.0118142363796,42.1389358576934]}},{"type":"Feature","properties":{"resourceCoords":[4352.0,5400.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.00935668017844,42.135637501104604]}},{"type":"Feature","properties":{"resourceCoords":[0.0,5400.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.01291626877763,42.13415842162821]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195103:07660_03_1951-0459/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Erie, Pennsylvania | 1951 | sanborn07660_011 p459","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T13:17:29Z","modified":"2026-09-21T13:17:29Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195103:07660_03_1951-0459/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195103:07660_03_1951-0459/info.json","type":"ImageService2","height":5400,"width":4352},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"130.0,2807.5 156.2,118.8 4352.0,74.4 4352.0,5400.0 -0.0,5400.0 -0.0,2806.0 130.0,2807.5\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195103:07660_03_1951-0459/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.0137552159776,42.14105892129288]}},{"type":"Feature","properties":{"resourceCoords":[4352.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.01034005687588,42.1426833341069]}},{"type":"Feature","properties":{"resourceCoords":[4352.0,5400.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.00764086464258,42.13951899310736]}},{"type":"Feature","properties":{"resourceCoords":[0.0,5400.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.0110560237443,42.13789458029334]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195103:07660_03_1951-0471/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Erie, Pennsylvania | 1951 | sanborn07660_011 p471","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T13:17:29Z","modified":"2026-09-21T13:17:29Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195103:07660_03_1951-0471/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195103:07660_03_1951-0471/info.json","type":"ImageService2","height":5400,"width":4352},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"-0.0,4992.6 -0.0,-0.0 4352.0,0.0 4352.0,3441.9 3973.2,4836.1 -0.0,4992.6\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195103:07660_03_1951-0471/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.02563445158508,42.15427620427592]}},{"type":"Feature","properties":{"resourceCoords":[4352.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.01830782511091,42.15681433021378]}},{"type":"Feature","properties":{"resourceCoords":[4352.0,5400.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.01408957898943,42.150027061421845]}},{"type":"Feature","properties":{"resourceCoords":[0.0,5400.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.0214162054636,42.147488935483985]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195103:07660_03_1951-0472/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Erie, Pennsylvania | 1951 | sanborn07660_011 p472","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T13:17:29Z","modified":"2026-09-21T13:17:29Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195103:07660_03_1951-0472/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195103:07660_03_1951-0472/info.json","type":"ImageService2","height":5400,"width":4352},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"368.9,4879.2 353.2,3225.4 244.8,3151.2 -0.0,3161.1 -0.0,353.3 284.3,251.6 359.3,2308.4 711.6,2278.2 680.3,36.5 -0.0,46.0 -0.0,-0.0 4352.0,0.0 4352.0,5400.0 2483.1,5400.0 2474.4,4855.1 368.9,4879.2\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195103:07660_03_1951-0472/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.0194876878229,42.15647576476022]}},{"type":"Feature","properties":{"resourceCoords":[4352.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.01211689018541,42.15893634386401]}},{"type":"Feature","properties":{"resourceCoords":[4352.0,5400.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.00802738234131,42.15210839090848]}},{"type":"Feature","properties":{"resourceCoords":[0.0,5400.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.0153981799788,42.14964781180469]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195103:07660_03_1951-0473__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Erie, Pennsylvania | 1951 | sanborn07660_011 p473 [1]","metadata":[{"label":"streets","value":"3"},{"label":"intersections","value":"3"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"3454.8"},{"label":"split_canvas_w","value":"1346.8"},{"label":"split_canvas_h","value":"1945.2"}],"created":"2026-09-21T13:17:29Z","modified":"2026-09-21T13:17:29Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195103:07660_03_1951-0473__1/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195103:07660_03_1951-0473/info.json","type":"ImageService2","height":5400,"width":4352},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"344.3,3783.5 0.0,3798.2 0.0,5400.0 1346.8,5400.0 1236.4,5218.5 1236.9,3586.6 262.2,3586.6 344.3,3783.5\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195103:07660_03_1951-0473__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[263.8,3586.6],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.0190059,42.1491965]}},{"type":"Feature","properties":{"resourceCoords":[1238.9,3586.6],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.0182081,42.1494707]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195103:07660_03_1951-0473__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Erie, Pennsylvania | 1951 | sanborn07660_011 p473 [2]","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"6"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"4352.0"},{"label":"split_canvas_h","value":"5400.0"}],"created":"2026-09-21T13:17:29Z","modified":"2026-09-21T13:17:29Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195103:07660_03_1951-0473__2/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195103:07660_03_1951-0473/info.json","type":"ImageService2","height":5400,"width":4352},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"574.8,816.2 584.7,2369.7 691.0,2541.8 -0.0,2546.4 0.0,3460.8 1337.2,3454.8 1346.8,5400.0 1387.4,5400.0 1365.7,4017.2 1904.9,4006.4 2010.6,4191.3 4112.0,4184.0 4108.1,793.4 574.8,816.2\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195103:07660_03_1951-0473__2/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1752.0,808.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.0171954,42.149819]}},{"type":"Feature","properties":{"resourceCoords":[4112.0,4184.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.0138339,42.1483434]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195103:07660_03_1951-0474/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Erie, Pennsylvania | 1951 | sanborn07660_011 p474","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T13:17:29Z","modified":"2026-09-21T13:17:29Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195103:07660_03_1951-0474/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195103:07660_03_1951-0474/info.json","type":"ImageService2","height":5400,"width":4352},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"157.5,4230.1 179.6,812.7 4352.0,831.8 4352.0,4020.5 1133.0,3988.3 1131.5,4238.3 157.5,4230.1\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195103:07660_03_1951-0474/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.01564190675288,42.15097668265997]}},{"type":"Feature","properties":{"resourceCoords":[4352.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.01194923299076,42.15226280671972]}},{"type":"Feature","properties":{"resourceCoords":[4352.0,5400.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.00981183032401,42.14884185297014]}},{"type":"Feature","properties":{"resourceCoords":[0.0,5400.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.01350450408613,42.1475557289104]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195103:07660_03_1951-0475/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Erie, Pennsylvania | 1951 | sanborn07660_011 p475","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T13:17:29Z","modified":"2026-09-21T13:17:29Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195103:07660_03_1951-0475/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195103:07660_03_1951-0475/info.json","type":"ImageService2","height":5400,"width":4352},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"-0.0,5400.0 0.0,0.0 578.0,0.0 656.8,190.6 4352.0,251.7 4352.0,5400.0 -0.0,5400.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195103:07660_03_1951-0475/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.0162693707789,42.14765003802941]}},{"type":"Feature","properties":{"resourceCoords":[4352.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.01263194986984,42.14894414571253]}},{"type":"Feature","properties":{"resourceCoords":[4352.0,5400.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.01048139146883,42.145574203296015]}},{"type":"Feature","properties":{"resourceCoords":[0.0,5400.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.01411881237789,42.1442800956129]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195103:07660_03_1951-0476/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Erie, Pennsylvania | 1951 | sanborn07660_011 p476","metadata":[{"label":"streets","value":"4"},{"label":"intersections","value":"4"}],"created":"2026-09-21T13:17:29Z","modified":"2026-09-21T13:17:29Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195103:07660_03_1951-0476/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195103:07660_03_1951-0476/info.json","type":"ImageService2","height":5400,"width":4352},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"554.0,249.6 -0.0,250.5 -0.0,-0.0 4352.0,0.0 4352.0,5400.0 625.0,5351.4 554.0,249.6\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195103:07660_03_1951-0476/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1456.0,1888.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.0111228,42.1480099]}},{"type":"Feature","properties":{"resourceCoords":[1456.0,248.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.0117624,42.1490493]}}]}}]}