{"id":"https://data.mapsnap.org/runs/v1.3/iiif/chronoscope/sanborn03985_012.main.iiif.json","type":"AnnotationPage","@context":["http://www.w3.org/ns/anno.jsonld"],"label":"Detroit, Michigan | 1910 | 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":"115"},{"label":"placed","value":"97"},{"label":"unplaced","value":"18"},{"label":"fit sources","value":"georef 55, georef-snap 41, snap:0 1"},{"label":"key map","value":"georeferenced"},{"label":"split sheets","value":"10 sheet(s) cut into 23 panels"},{"label":"unplaced pages","value":"p0__1 (tier 1, 42.36765,-83.08415 +/-251m); p0__2 (tier 1, 42.36650,-83.08147 +/-100m); p101__1 (tier 3, 42.36626,-83.13530 +/-522m); p101__3 (tier 1, 42.36679,-83.13510 +/-100m); p1__1 (tier 1, 42.39834,-83.09224 +/-100m); p2__2 (tier 1, 42.37505,-83.08854 +/-100m); p2__3 (tier 1, 42.37555,-83.08824 +/-100m); p45 (tier 1, 42.36125,-83.07427 +/-229m); p46 (tier 1, 42.36039,-83.08135 +/-254m); p48 (tier 2, 42.36094,-83.07567 +/-100m); p50__3 (tier 2, 42.36343,-83.07089 +/-100m); p59__2 (tier 1, 42.34897,-83.10162 +/-265m); p73 (tier 2, 42.35722,-83.08006 +/-100m); p74 (tier 1, 42.35384,-83.07891 +/-259m); p75 (tier 3, 42.35753,-83.07466 +/-522m); p77 (tier 2, 42.35832,-83.07045 +/-212m); p85__1 (tier 1, 42.33596,-83.11526 +/-102m); p94__1 (tier 1, 42.33160,-83.10509 +/-100m)"}],"items":[{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114dm:g03985191006:03985_06_1910-0010/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Detroit, Michigan | 1910 | sanborn03985_012 p10","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"9"}],"created":"2026-09-21T12:31:21Z","modified":"2026-09-21T12:31:21Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114dm:g03985191006:03985_06_1910-0010/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114dm:g03985191006:03985_06_1910-0010","type":"ImageService3","width":1621,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"218.4,1799.3 221.4,1686.5 124.8,1686.9 129.8,145.2 129.7,145.2 130.2,0.0 226.6,0.0 226.0,145.6 1598.3,150.7 1607.7,1800.7 218.4,1799.3\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114dm:g03985191006:03985_06_1910-0010/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[226.0,1259.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-83.0783345,42.3721869]}},{"type":"Feature","properties":{"resourceCoords":[226.0,146.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-83.079565,42.373997]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114dm:g03985191006:03985_06_1910-0100/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Detroit, Michigan | 1910 | sanborn03985_012 p100","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T12:31:21Z","modified":"2026-09-21T12:31:21Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114dm:g03985191006:03985_06_1910-0100/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114dm:g03985191006:03985_06_1910-0100","type":"ImageService3","width":1636,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"339.3,1791.2 45.9,1773.0 -0.0,1708.0 -0.0,0.0 1636.0,-0.0 1636.0,1949.0 464.7,1949.0 339.3,1791.2\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114dm:g03985191006:03985_06_1910-0100/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.09839366052061,42.33407216187069]}},{"type":"Feature","properties":{"resourceCoords":[1636.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.09652691262096,42.33143253733388]}},{"type":"Feature","properties":{"resourceCoords":[1636.0,1949.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.10075089212214,42.329776908025735]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1949.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.10261764002179,42.33241653256254]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114dm:g03985191006:03985_06_1910-0101__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Detroit, Michigan | 1910 | sanborn03985_012 p101 [2]","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":"6460.0"},{"label":"split_canvas_h","value":"7796.0"}],"created":"2026-09-21T12:31:21Z","modified":"2026-09-21T12:31:21Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114dm:g03985191006:03985_06_1910-0101__2/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114dm:g03985191006:03985_06_1910-0101","type":"ImageService3","width":1615,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"119.0,1949.0 269.0,1949.0 407.0,1949.0 1615.0,1949.0 1615.0,0.0 885.9,0.0 885.0,709.7 590.6,708.4 0.0,706.1 0.0,1949.0 119.0,1949.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114dm:g03985191006:03985_06_1910-0101__2/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.14188179769756,42.36713826019142]}},{"type":"Feature","properties":{"resourceCoords":[1615.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.14021908624521,42.369800237352756]}},{"type":"Feature","properties":{"resourceCoords":[1615.0,1949.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.13587465675526,42.368316465647425]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1949.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.13753736820762,42.365654488486086]}},{"type":"Feature","properties":{"resourceCoords":[1290.0,792.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-83.1387877,42.3686614]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114dm:g03985191006:03985_06_1910-0011/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Detroit, Michigan | 1910 | sanborn03985_012 p11","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T12:31:21Z","modified":"2026-09-21T12:31:21Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114dm:g03985191006:03985_06_1910-0011/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114dm:g03985191006:03985_06_1910-0011","type":"ImageService3","width":1614,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"272.0,1512.7 -0.0,1512.3 -0.0,1413.8 114.5,1416.7 121.5,-0.0 1614.0,-0.0 1614.0,68.9 1402.9,58.1 1387.2,1790.1 269.9,1808.6 272.0,1512.7\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114dm:g03985191006:03985_06_1910-0011/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.07482596477858,42.37262925594932]}},{"type":"Feature","properties":{"resourceCoords":[1614.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.07307458510708,42.37004203435315]}},{"type":"Feature","properties":{"resourceCoords":[1614.0,1949.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.07727372129278,42.36846852043088]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1949.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.07902510096429,42.37105574202705]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114dm:g03985191006:03985_06_1910-0012/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Detroit, Michigan | 1910 | sanborn03985_012 p12","metadata":[{"label":"streets","value":"4"},{"label":"intersections","value":"4"}],"created":"2026-09-21T12:31:21Z","modified":"2026-09-21T12:31:21Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114dm:g03985191006:03985_06_1910-0012/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114dm:g03985191006:03985_06_1910-0012","type":"ImageService3","width":1621,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"410.9,985.5 428.8,-0.0 1621.0,-0.0 1621.0,1949.0 -0.0,1949.0 -0.0,1088.2 228.3,996.6 410.9,985.5\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114dm:g03985191006:03985_06_1910-0012/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[266.0,990.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-83.0807138,42.3701823]}},{"type":"Feature","properties":{"resourceCoords":[1551.0,990.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-83.0792913,42.3681648]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114dm:g03985191006:03985_06_1910-0013/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Detroit, Michigan | 1910 | sanborn03985_012 p13","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T12:31:21Z","modified":"2026-09-21T12:31:21Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114dm:g03985191006:03985_06_1910-0013/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114dm:g03985191006:03985_06_1910-0013","type":"ImageService3","width":1614,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"-0.0,1949.0 -0.0,0.0 1614.0,0.0 1614.0,542.4 1534.5,543.7 1550.7,1466.9 1588.9,1484.5 1597.6,1865.6 1026.3,1882.1 1027.8,1949.0 844.5,1949.0 843.3,1887.7 36.8,1909.8 37.6,1949.0 -0.0,1949.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114dm:g03985191006:03985_06_1910-0013/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.11285378990317,42.35738017596522]}},{"type":"Feature","properties":{"resourceCoords":[1614.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.1088869123568,42.35738228774446]}},{"type":"Feature","properties":{"resourceCoords":[1614.0,1949.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.10888348569213,42.353817429028894]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1949.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.11285036323851,42.353815317249655]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114dm:g03985191006:03985_06_1910-0014/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Detroit, Michigan | 1910 | sanborn03985_012 p14","metadata":[{"label":"streets","value":"5"},{"label":"intersections","value":"8"}],"created":"2026-09-21T12:31:21Z","modified":"2026-09-21T12:31:21Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114dm:g03985191006:03985_06_1910-0014/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114dm:g03985191006:03985_06_1910-0014","type":"ImageService3","width":1621,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"-0.0,1949.0 -0.0,62.4 810.2,58.9 810.0,120.8 994.0,125.1 994.1,57.4 1568.0,54.0 1569.6,605.4 1621.0,605.2 1621.0,1697.5 1573.3,1697.8 1576.0,1949.0 -0.0,1949.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114dm:g03985191006:03985_06_1910-0014/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[142.0,1152.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-83.112349,42.351923]}},{"type":"Feature","properties":{"resourceCoords":[1568.0,54.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-83.108924,42.35397]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114dm:g03985191006:03985_06_1910-0015/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Detroit, Michigan | 1910 | sanborn03985_012 p15","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"7"}],"created":"2026-09-21T12:31:21Z","modified":"2026-09-21T12:31:21Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114dm:g03985191006:03985_06_1910-0015/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114dm:g03985191006:03985_06_1910-0015","type":"ImageService3","width":1614,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1614.0,1895.7 44.3,1889.5 38.0,952.4 -0.0,934.0 -0.0,0.0 1614.0,0.0 1614.0,1895.7\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114dm:g03985191006:03985_06_1910-0015/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[526.0,1338.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-83.107735,42.353986]}},{"type":"Feature","properties":{"resourceCoords":[40.0,1338.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-83.108924,42.35397]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114dm:g03985191006:03985_06_1910-0016/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Detroit, Michigan | 1910 | sanborn03985_012 p16","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T12:31:21Z","modified":"2026-09-21T12:31:21Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114dm:g03985191006:03985_06_1910-0016/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114dm:g03985191006:03985_06_1910-0016","type":"ImageService3","width":1621,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"46.0,1231.9 56.4,0.0 624.8,0.0 950.5,616.4 1621.0,996.2 1621.0,1191.3 625.1,1903.8 403.9,1419.5 207.8,1506.3 205.8,1299.4 46.0,1231.9\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114dm:g03985191006:03985_06_1910-0016/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.10524137334014,42.355252576317]}},{"type":"Feature","properties":{"resourceCoords":[1621.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.10127944492339,42.35530556505628]}},{"type":"Feature","properties":{"resourceCoords":[1621.0,1949.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.10119383680804,42.351760428866655]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1949.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.10515576522478,42.35170744012738]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114dm:g03985191006:03985_06_1910-0017/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Detroit, Michigan | 1910 | sanborn03985_012 p17","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"8"}],"created":"2026-09-21T12:31:21Z","modified":"2026-09-21T12:31:21Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114dm:g03985191006:03985_06_1910-0017/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114dm:g03985191006:03985_06_1910-0017","type":"ImageService3","width":1614,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"570.1,-0.0 611.7,95.6 908.5,232.0 928.3,196.2 1292.1,32.5 1614.0,480.4 1614.0,788.2 1365.6,881.6 1362.0,1665.4 272.5,1661.3 272.9,205.3 362.6,-0.0 570.1,-0.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114dm:g03985191006:03985_06_1910-0017/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[273.0,1713.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-83.108889,42.352973]}},{"type":"Feature","properties":{"resourceCoords":[1362.0,1713.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-83.108815,42.350998]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114dm:g03985191006:03985_06_1910-0018/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Detroit, Michigan | 1910 | sanborn03985_012 p18","metadata":[{"label":"streets","value":"7"},{"label":"intersections","value":"12"}],"created":"2026-09-21T12:31:21Z","modified":"2026-09-21T12:31:21Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114dm:g03985191006:03985_06_1910-0018/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114dm:g03985191006:03985_06_1910-0018","type":"ImageService3","width":1621,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1518.8,1547.7 1116.6,1722.6 1093.5,1689.4 546.4,1949.0 247.9,1949.0 250.2,1669.7 -0.0,1671.8 -0.0,836.9 249.4,735.2 249.2,455.2 172.7,331.6 885.8,17.9 1518.8,1547.7\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114dm:g03985191006:03985_06_1910-0018/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[549.0,1668.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-83.1087696,42.3500019]}},{"type":"Feature","properties":{"resourceCoords":[387.0,679.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-83.1063643,42.3503415]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114dm:g03985191006:03985_06_1910-0019/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Detroit, Michigan | 1910 | sanborn03985_012 p19","metadata":[{"label":"streets","value":"8"},{"label":"intersections","value":"8"}],"created":"2026-09-21T12:31:21Z","modified":"2026-09-21T12:31:21Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114dm:g03985191006:03985_06_1910-0019/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114dm:g03985191006:03985_06_1910-0019","type":"ImageService3","width":1612,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"745.1,1833.3 656.6,1413.2 253.2,1418.3 220.3,1443.5 -0.0,1197.3 -0.0,875.5 539.7,872.4 385.2,146.3 1612.0,175.8 1612.0,1410.8 1544.5,1411.0 1540.8,1700.4 1534.4,1700.4 1529.8,1830.6 745.1,1833.3\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114dm:g03985191006:03985_06_1910-0019/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[798.0,872.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-83.103363,42.35139]}},{"type":"Feature","properties":{"resourceCoords":[1544.0,1411.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-83.10378,42.349769]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114dm:g03985191006:03985_06_1910-0001__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Detroit, Michigan | 1910 | sanborn03985_012 p1 [2]","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"10"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"6444.0"},{"label":"split_canvas_h","value":"7796.0"}],"created":"2026-09-21T12:31:21Z","modified":"2026-09-21T12:31:21Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114dm:g03985191006:03985_06_1910-0001__2/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114dm:g03985191006:03985_06_1910-0001","type":"ImageService3","width":1611,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"264.0,1949.0 294.8,1949.0 395.3,1949.0 1611.0,1949.0 1611.0,0.0 -0.0,-0.0 0.0,1401.2 396.2,1402.1 395.7,1712.0 278.4,1706.7 184.2,1702.4 183.3,1825.4 182.8,1949.0 264.0,1949.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114dm:g03985191006:03985_06_1910-0001__2/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1570.0,1414.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-83.090595,42.3959996]}},{"type":"Feature","properties":{"resourceCoords":[31.0,212.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-83.0954243,42.3966939]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114dm:g03985191006:03985_06_1910-0020/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Detroit, Michigan | 1910 | sanborn03985_012 p20","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T12:31:21Z","modified":"2026-09-21T12:31:21Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114dm:g03985191006:03985_06_1910-0020/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114dm:g03985191006:03985_06_1910-0020","type":"ImageService3","width":1621,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1154.7,1257.5 1184.0,1949.0 -0.0,1949.0 -0.0,178.6 1122.1,44.5 1185.2,1257.4 1154.7,1257.5\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114dm:g03985191006:03985_06_1910-0020/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.09951632898702,42.36039407522737]}},{"type":"Feature","properties":{"resourceCoords":[1621.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.09774706203939,42.35774781059359]}},{"type":"Feature","properties":{"resourceCoords":[1621.0,1949.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.10202264886446,42.35616478274357]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1949.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.1037919158121,42.35881104737735]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114dm:g03985191006:03985_06_1910-0021/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Detroit, Michigan | 1910 | sanborn03985_012 p21","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T12:31:21Z","modified":"2026-09-21T12:31:21Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114dm:g03985191006:03985_06_1910-0021/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114dm:g03985191006:03985_06_1910-0021","type":"ImageService3","width":1614,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1532.5,1818.0 681.3,1949.0 369.2,1949.0 412.6,1866.8 -0.0,1221.8 0.0,0.0 1544.9,0.0 1532.5,1818.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114dm:g03985191006:03985_06_1910-0021/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.1043430371218,42.35612143402957]}},{"type":"Feature","properties":{"resourceCoords":[1614.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.1008658257584,42.35754878523134]}},{"type":"Feature","properties":{"resourceCoords":[1614.0,1949.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.09854975420929,42.35442395389586]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1949.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.10202696557268,42.35299660269409]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114dm:g03985191006:03985_06_1910-0022/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Detroit, Michigan | 1910 | sanborn03985_012 p22","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T12:31:21Z","modified":"2026-09-21T12:31:21Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114dm:g03985191006:03985_06_1910-0022/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114dm:g03985191006:03985_06_1910-0022","type":"ImageService3","width":1621,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1485.5,1626.9 117.2,1805.9 145.8,0.0 1367.9,0.0 1485.5,1626.9\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114dm:g03985191006:03985_06_1910-0022/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.1012903305117,42.35730813479906]}},{"type":"Feature","properties":{"resourceCoords":[1621.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.09785222775261,42.358751509175704]}},{"type":"Feature","properties":{"resourceCoords":[1621.0,1949.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.09552022581069,42.355675224054764]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1949.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.09895832856978,42.35423184967812]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114dm:g03985191006:03985_06_1910-0023/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Detroit, Michigan | 1910 | sanborn03985_012 p23","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T12:31:21Z","modified":"2026-09-21T12:31:21Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114dm:g03985191006:03985_06_1910-0023/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114dm:g03985191006:03985_06_1910-0023","type":"ImageService3","width":1614,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"0.0,0.0 285.2,-0.0 274.1,98.0 536.0,126.0 1614.0,114.8 1614.0,577.1 1377.2,580.9 1398.4,1772.6 85.3,1778.3 65.6,1949.0 -0.0,1949.0 0.0,0.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114dm:g03985191006:03985_06_1910-0023/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.09640483681032,42.36212838322201]}},{"type":"Feature","properties":{"resourceCoords":[1614.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.09427003788403,42.35968611879249]}},{"type":"Feature","properties":{"resourceCoords":[1614.0,1949.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.09823323966063,42.35776780303836]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1949.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.10036803858692,42.360210067467875]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114dm:g03985191006:03985_06_1910-0024/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Detroit, Michigan | 1910 | sanborn03985_012 p24","metadata":[{"label":"streets","value":"7"},{"label":"intersections","value":"8"}],"created":"2026-09-21T12:31:21Z","modified":"2026-09-21T12:31:21Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114dm:g03985191006:03985_06_1910-0024/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114dm:g03985191006:03985_06_1910-0024","type":"ImageService3","width":1621,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"-0.0,1764.3 -0.0,585.7 234.8,587.7 242.9,133.6 1480.5,166.6 1405.6,637.1 1453.3,1786.2 -0.0,1764.3\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114dm:g03985191006:03985_06_1910-0024/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[619.0,1774.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-83.0973228,42.3573283]}},{"type":"Feature","properties":{"resourceCoords":[622.0,129.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-83.0939757,42.3590057]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114dm:g03985191006:03985_06_1910-0025/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Detroit, Michigan | 1910 | sanborn03985_012 p25","metadata":[{"label":"streets","value":"5"},{"label":"intersections","value":"10"}],"created":"2026-09-21T12:31:21Z","modified":"2026-09-21T12:31:21Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114dm:g03985191006:03985_06_1910-0025/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114dm:g03985191006:03985_06_1910-0025","type":"ImageService3","width":1614,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"0.0,0.0 1614.0,0.0 1614.0,1785.8 1405.3,1784.5 1407.1,1949.0 186.4,1949.0 -0.0,264.0 0.0,0.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114dm:g03985191006:03985_06_1910-0025/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[818.0,1782.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-83.092511,42.359419]}},{"type":"Feature","properties":{"resourceCoords":[818.0,42.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-83.0944184,42.3622122]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114dm:g03985191006:03985_06_1910-0026/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Detroit, Michigan | 1910 | sanborn03985_012 p26","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"9"}],"created":"2026-09-21T12:31:21Z","modified":"2026-09-21T12:31:21Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114dm:g03985191006:03985_06_1910-0026/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114dm:g03985191006:03985_06_1910-0026","type":"ImageService3","width":1621,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"13.1,1774.8 10.4,1030.2 456.3,1019.5 361.3,399.0 1555.8,321.1 1560.0,1776.0 13.1,1774.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114dm:g03985191006:03985_06_1910-0026/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[993.0,1020.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-83.091649,42.358059]}},{"type":"Feature","properties":{"resourceCoords":[1560.0,1776.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-83.089638,42.357198]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114dm:g03985191006:03985_06_1910-0027/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Detroit, Michigan | 1910 | sanborn03985_012 p27","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T12:31:21Z","modified":"2026-09-21T12:31:21Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114dm:g03985191006:03985_06_1910-0027/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114dm:g03985191006:03985_06_1910-0027","type":"ImageService3","width":1614,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"253.4,1920.1 234.9,301.1 442.2,289.9 422.9,0.0 1614.0,0.0 1614.0,415.7 1336.8,414.5 1386.8,874.4 1385.6,1926.4 253.4,1920.1\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114dm:g03985191006:03985_06_1910-0027/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.09204892996094,42.36022668528063]}},{"type":"Feature","properties":{"resourceCoords":[1614.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.08842340180652,42.36137868450652]}},{"type":"Feature","properties":{"resourceCoords":[1614.0,1949.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.08655401077522,42.35812076813565]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1949.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.09017953892963,42.35696876890976]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114dm:g03985191006:03985_06_1910-0028/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Detroit, Michigan | 1910 | sanborn03985_012 p28","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"11"}],"created":"2026-09-21T12:31:21Z","modified":"2026-09-21T12:31:21Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114dm:g03985191006:03985_06_1910-0028/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114dm:g03985191006:03985_06_1910-0028","type":"ImageService3","width":1621,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1119.3,0.0 1152.6,156.3 1247.8,322.4 1067.4,604.4 1103.5,1139.0 1621.0,1474.6 1322.0,1949.0 1060.0,1949.0 1060.5,1903.8 -0.0,1899.8 -0.0,-0.0 1119.3,0.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114dm:g03985191006:03985_06_1910-0028/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[553.0,788.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-83.086511,42.3633831]}},{"type":"Feature","properties":{"resourceCoords":[553.0,1902.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-83.0854186,42.3615015]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114dm:g03985191006:03985_06_1910-0029/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Detroit, Michigan | 1910 | sanborn03985_012 p29","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T12:31:21Z","modified":"2026-09-21T12:31:21Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114dm:g03985191006:03985_06_1910-0029/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114dm:g03985191006:03985_06_1910-0029","type":"ImageService3","width":1614,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1318.3,1949.0 781.2,1949.0 512.4,1748.7 339.3,1833.2 180.6,1856.0 173.8,1949.0 -0.0,1949.0 -0.0,45.5 1040.9,64.4 1042.8,-0.0 1614.0,-0.0 1614.0,1553.8 1318.3,1949.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114dm:g03985191006:03985_06_1910-0029/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.08212245544537,42.366977073034775]}},{"type":"Feature","properties":{"resourceCoords":[1614.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.08030037572132,42.36434319921937]}},{"type":"Feature","properties":{"resourceCoords":[1614.0,1949.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.08457484403125,42.36270601761595]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1949.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.0863969237553,42.365339891431354]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114dm:g03985191006:03985_06_1910-0002__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Detroit, Michigan | 1910 | sanborn03985_012 p2 [1]","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"6484.0"},{"label":"split_canvas_h","value":"3258.8"}],"created":"2026-09-21T12:31:21Z","modified":"2026-09-21T12:31:21Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114dm:g03985191006:03985_06_1910-0002__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114dm:g03985191006:03985_06_1910-0002","type":"ImageService3","width":1621,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1621.0,0.0 -0.0,0.0 0.0,632.0 -0.0,814.7 660.4,814.1 1621.0,813.3 1621.0,0.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114dm:g03985191006:03985_06_1910-0002__1/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.08931874663728,42.37637502803137]}},{"type":"Feature","properties":{"resourceCoords":[1621.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.08754578795144,42.37692667366229]}},{"type":"Feature","properties":{"resourceCoords":[1621.0,814.7],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.08717297703537,42.37626351206936]}},{"type":"Feature","properties":{"resourceCoords":[0.0,814.7],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.08894593572118,42.37571186643844]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114dm:g03985191006:03985_06_1910-0003/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Detroit, Michigan | 1910 | sanborn03985_012 p3","metadata":[{"label":"streets","value":"5"},{"label":"intersections","value":"4"}],"created":"2026-09-21T12:31:21Z","modified":"2026-09-21T12:31:21Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114dm:g03985191006:03985_06_1910-0003/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114dm:g03985191006:03985_06_1910-0003","type":"ImageService3","width":1611,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"-0.0,-0.0 1611.0,0.0 1611.0,1837.4 -0.0,1836.5 -0.0,-0.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114dm:g03985191006:03985_06_1910-0003/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[393.0,914.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-83.087754,42.380638]}},{"type":"Feature","properties":{"resourceCoords":[393.0,1894.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-83.08667,42.379027]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114dm:g03985191006:03985_06_1910-0030/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Detroit, Michigan | 1910 | sanborn03985_012 p30","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T12:31:21Z","modified":"2026-09-21T12:31:21Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114dm:g03985191006:03985_06_1910-0030/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114dm:g03985191006:03985_06_1910-0030","type":"ImageService3","width":1621,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1621.0,1757.5 1089.6,1728.9 1078.4,1927.6 654.5,1625.8 578.6,1731.5 547.3,153.0 1621.0,192.9 1621.0,1757.5\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114dm:g03985191006:03985_06_1910-0030/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.08055131377421,42.36535267721894]}},{"type":"Feature","properties":{"resourceCoords":[1621.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.0788201121811,42.362723151899]}},{"type":"Feature","properties":{"resourceCoords":[1621.0,1949.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.08306898700862,42.361174304211225]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1949.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.08480018860172,42.363803829531165]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114dm:g03985191006:03985_06_1910-0031/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Detroit, Michigan | 1910 | sanborn03985_012 p31","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T12:31:21Z","modified":"2026-09-21T12:31:21Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114dm:g03985191006:03985_06_1910-0031/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114dm:g03985191006:03985_06_1910-0031","type":"ImageService3","width":1614,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"-0.0,1949.0 -0.0,1073.9 455.9,1072.3 458.6,-0.0 1608.6,-0.0 1614.0,1535.4 434.4,1509.5 432.4,1949.0 -0.0,1949.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114dm:g03985191006:03985_06_1910-0031/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.07944406517134,42.36890360383345]}},{"type":"Feature","properties":{"resourceCoords":[1614.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.07762603028273,42.366304102382855]}},{"type":"Feature","properties":{"resourceCoords":[1614.0,1949.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.08184484668446,42.3646706056544]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1949.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.08366288157308,42.367270107105]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114dm:g03985191006:03985_06_1910-0032/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Detroit, Michigan | 1910 | sanborn03985_012 p32","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T12:31:21Z","modified":"2026-09-21T12:31:21Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114dm:g03985191006:03985_06_1910-0032/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114dm:g03985191006:03985_06_1910-0032","type":"ImageService3","width":1643,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1152.7,1474.3 125.5,1474.7 78.0,84.5 741.4,85.4 1202.2,179.1 1152.7,1474.3\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114dm:g03985191006:03985_06_1910-0032/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.07769869002723,42.36642918268409]}},{"type":"Feature","properties":{"resourceCoords":[1643.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.07597538791128,42.36374465938494]}},{"type":"Feature","properties":{"resourceCoords":[1643.0,1949.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.08025512581212,42.36222355164078]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1949.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.08197842792806,42.364908074939926]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114dm:g03985191006:03985_06_1910-0033/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Detroit, Michigan | 1910 | sanborn03985_012 p33","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"12"}],"created":"2026-09-21T12:31:21Z","modified":"2026-09-21T12:31:21Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114dm:g03985191006:03985_06_1910-0033/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114dm:g03985191006:03985_06_1910-0033","type":"ImageService3","width":1614,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"197.6,501.0 137.2,501.6 142.7,-0.0 1369.9,-0.0 1369.7,389.4 1614.0,390.8 1614.0,1430.7 1371.2,1423.4 1371.1,1341.3 205.1,1347.8 197.6,501.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114dm:g03985191006:03985_06_1910-0033/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[924.0,1419.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-83.078291,42.366962]}},{"type":"Feature","properties":{"resourceCoords":[924.0,382.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-83.076055,42.367804]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114dm:g03985191006:03985_06_1910-0034/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Detroit, Michigan | 1910 | sanborn03985_012 p34","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T12:31:21Z","modified":"2026-09-21T12:31:21Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114dm:g03985191006:03985_06_1910-0034/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114dm:g03985191006:03985_06_1910-0034","type":"ImageService3","width":1643,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1263.8,1471.4 928.3,1414.3 542.1,1408.6 532.4,370.8 1325.0,363.5 1263.8,1471.4\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114dm:g03985191006:03985_06_1910-0034/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.07508230597873,42.367853531355614]}},{"type":"Feature","properties":{"resourceCoords":[1643.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.07331908511972,42.365200122868835]}},{"type":"Feature","properties":{"resourceCoords":[1643.0,1949.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.07754930817579,42.36364381285375]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1949.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.0793125290348,42.36629722134053]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114dm:g03985191006:03985_06_1910-0035/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Detroit, Michigan | 1910 | sanborn03985_012 p35","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"16"}],"created":"2026-09-21T12:31:21Z","modified":"2026-09-21T12:31:21Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114dm:g03985191006:03985_06_1910-0035/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114dm:g03985191006:03985_06_1910-0035","type":"ImageService3","width":1614,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1361.6,1401.3 144.2,1400.5 158.4,183.1 368.3,195.5 368.5,127.2 -0.0,124.2 0.0,0.0 1351.3,-0.0 1361.6,1401.3\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114dm:g03985191006:03985_06_1910-0035/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[919.0,1780.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-83.076055,42.367804]}},{"type":"Feature","properties":{"resourceCoords":[919.0,174.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-83.0725656,42.36912]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114dm:g03985191006:03985_06_1910-0036/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Detroit, Michigan | 1910 | sanborn03985_012 p36","metadata":[{"label":"streets","value":"7"},{"label":"intersections","value":"10"}],"created":"2026-09-21T12:31:21Z","modified":"2026-09-21T12:31:21Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114dm:g03985191006:03985_06_1910-0036/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114dm:g03985191006:03985_06_1910-0036","type":"ImageService3","width":1643,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"194.7,14.3 1643.0,-0.0 1643.0,64.0 1243.5,35.9 1228.2,252.4 1336.5,258.1 1241.3,1801.5 210.0,1798.0 194.7,14.3\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114dm:g03985191006:03985_06_1910-0036/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1444.0,184.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-83.0706979,42.3664171]}},{"type":"Feature","properties":{"resourceCoords":[210.0,1798.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-83.075581,42.367088]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114dm:g03985191006:03985_06_1910-0037/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Detroit, Michigan | 1910 | sanborn03985_012 p37","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T12:31:21Z","modified":"2026-09-21T12:31:21Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114dm:g03985191006:03985_06_1910-0037/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114dm:g03985191006:03985_06_1910-0037","type":"ImageService3","width":1614,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"-0.0,678.2 1107.8,377.5 1102.8,1132.2 1132.0,1132.0 1614.0,1753.1 1614.0,1897.8 1134.1,1889.3 1058.3,1806.0 734.9,1804.7 735.1,1949.0 -0.0,1949.0 -0.0,678.2\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114dm:g03985191006:03985_06_1910-0037/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.10286015448048,42.35373419026443]}},{"type":"Feature","properties":{"resourceCoords":[1614.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.09927342439823,42.354914749701116]}},{"type":"Feature","properties":{"resourceCoords":[1614.0,1949.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.09735788512097,42.35169136523729]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1949.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.10094461520322,42.35051080580061]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114dm:g03985191006:03985_06_1910-0038/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Detroit, Michigan | 1910 | sanborn03985_012 p38","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"9"}],"created":"2026-09-21T12:31:21Z","modified":"2026-09-21T12:31:21Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114dm:g03985191006:03985_06_1910-0038/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114dm:g03985191006:03985_06_1910-0038","type":"ImageService3","width":1643,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"576.1,1811.3 515.7,1786.3 515.4,1737.7 -0.0,1113.2 -0.0,343.6 1480.3,0.0 1474.7,1881.2 631.1,1878.0 576.1,1811.3\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114dm:g03985191006:03985_06_1910-0038/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1012.0,1116.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-83.097033,42.353384]}},{"type":"Feature","properties":{"resourceCoords":[576.0,1876.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-83.097275,42.351819]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114dm:g03985191006:03985_06_1910-0039/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Detroit, Michigan | 1910 | sanborn03985_012 p39","metadata":[{"label":"streets","value":"5"},{"label":"intersections","value":"6"}],"created":"2026-09-21T12:31:21Z","modified":"2026-09-21T12:31:21Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114dm:g03985191006:03985_06_1910-0039/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114dm:g03985191006:03985_06_1910-0039","type":"ImageService3","width":1614,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1528.0,161.0 1528.7,1742.8 406.1,1748.9 19.1,160.0 1528.0,161.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114dm:g03985191006:03985_06_1910-0039/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[768.0,1312.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-83.09574,42.355282]}},{"type":"Feature","properties":{"resourceCoords":[1528.0,161.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-83.0924195,42.3548314]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114dm:g03985191006:03985_06_1910-0004/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Detroit, Michigan | 1910 | sanborn03985_012 p4","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"9"}],"created":"2026-09-21T12:31:21Z","modified":"2026-09-21T12:31:21Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114dm:g03985191006:03985_06_1910-0004/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114dm:g03985191006:03985_06_1910-0004","type":"ImageService3","width":1621,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1621.0,0.0 1621.0,1932.1 233.0,1913.0 233.0,1949.0 137.9,1949.0 110.9,1913.0 111.4,9.2 1621.0,0.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114dm:g03985191006:03985_06_1910-0004/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[233.0,926.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-83.084776,42.381736]}},{"type":"Feature","properties":{"resourceCoords":[233.0,1913.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-83.0836899,42.380123]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114dm:g03985191006:03985_06_1910-0040/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Detroit, Michigan | 1910 | sanborn03985_012 p40","metadata":[{"label":"streets","value":"5"},{"label":"intersections","value":"6"}],"created":"2026-09-21T12:31:21Z","modified":"2026-09-21T12:31:21Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114dm:g03985191006:03985_06_1910-0040/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114dm:g03985191006:03985_06_1910-0040","type":"ImageService3","width":1643,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"39.1,1752.2 38.0,171.0 1097.5,178.3 1085.3,395.7 1549.4,393.8 1553.2,1630.3 691.7,1641.5 693.1,1753.2 39.1,1752.2\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114dm:g03985191006:03985_06_1910-0040/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[794.0,1318.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-83.094279,42.35276]}},{"type":"Feature","properties":{"resourceCoords":[38.0,171.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-83.0924195,42.3548314]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114dm:g03985191006:03985_06_1910-0041/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Detroit, Michigan | 1910 | sanborn03985_012 p41","metadata":[{"label":"streets","value":"7"},{"label":"intersections","value":"12"}],"created":"2026-09-21T12:31:21Z","modified":"2026-09-21T12:31:21Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114dm:g03985191006:03985_06_1910-0041/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114dm:g03985191006:03985_06_1910-0041","type":"ImageService3","width":1614,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"36.8,1585.6 49.0,81.0 1591.5,84.7 1584.5,1585.5 36.8,1585.6\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114dm:g03985191006:03985_06_1910-0041/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1013.0,836.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-83.0902221,42.3555245]}},{"type":"Feature","properties":{"resourceCoords":[49.0,81.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-83.0931403,42.3560997]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114dm:g03985191006:03985_06_1910-0042/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Detroit, Michigan | 1910 | sanborn03985_012 p42","metadata":[{"label":"streets","value":"5"},{"label":"intersections","value":"5"}],"created":"2026-09-21T12:31:21Z","modified":"2026-09-21T12:31:21Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114dm:g03985191006:03985_06_1910-0042/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114dm:g03985191006:03985_06_1910-0042","type":"ImageService3","width":1643,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1361.7,86.1 1355.5,1949.0 196.9,1943.2 219.0,88.0 1361.7,86.1\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114dm:g03985191006:03985_06_1910-0042/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[219.0,849.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-83.088922,42.3559425]}},{"type":"Feature","properties":{"resourceCoords":[219.0,88.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-83.089638,42.357198]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114dm:g03985191006:03985_06_1910-0043/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Detroit, Michigan | 1910 | sanborn03985_012 p43","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T12:31:21Z","modified":"2026-09-21T12:31:21Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114dm:g03985191006:03985_06_1910-0043/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114dm:g03985191006:03985_06_1910-0043","type":"ImageService3","width":1614,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"34.2,1657.2 -0.0,1657.5 27.4,-0.0 1614.0,17.1 1614.0,1870.2 490.2,1878.2 35.4,1931.7 34.2,1657.2\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114dm:g03985191006:03985_06_1910-0043/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.08428288659037,42.36191235729948]}},{"type":"Feature","properties":{"resourceCoords":[1614.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.0827508799812,42.35917702479407]}},{"type":"Feature","properties":{"resourceCoords":[1614.0,1949.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.08718965421468,42.35780037229829]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1949.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.08872166082385,42.3605357048037]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114dm:g03985191006:03985_06_1910-0044/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Detroit, Michigan | 1910 | sanborn03985_012 p44","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T12:31:21Z","modified":"2026-09-21T12:31:21Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114dm:g03985191006:03985_06_1910-0044/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114dm:g03985191006:03985_06_1910-0044","type":"ImageService3","width":1643,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1643.0,505.6 1643.0,1896.0 151.1,1878.3 178.6,22.4 1643.0,29.1 1643.0,505.5 1423.8,509.5 1423.8,509.6 1643.0,505.6\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114dm:g03985191006:03985_06_1910-0044/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.08291432419995,42.35948154411498]}},{"type":"Feature","properties":{"resourceCoords":[1643.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.08130232191506,42.356718904694446]}},{"type":"Feature","properties":{"resourceCoords":[1643.0,1949.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.08570609866108,42.35529587777707]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1949.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.08731810094596,42.3580585171976]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114dm:g03985191006:03985_06_1910-0047/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Detroit, Michigan | 1910 | sanborn03985_012 p47","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T12:31:21Z","modified":"2026-09-21T12:31:21Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114dm:g03985191006:03985_06_1910-0047/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114dm:g03985191006:03985_06_1910-0047","type":"ImageService3","width":1614,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"563.0,1613.4 -0.0,1611.5 -0.0,381.6 1614.0,371.0 1614.0,1949.0 535.0,1949.0 522.0,1680.2 563.0,1613.4\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114dm:g03985191006:03985_06_1910-0047/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.07627148230753,42.36450474757624]}},{"type":"Feature","properties":{"resourceCoords":[1614.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.07477808301326,42.36192950912058]}},{"type":"Feature","properties":{"resourceCoords":[1614.0,1949.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.0789572409169,42.36058760580008]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1949.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.08045064021118,42.36316284425574]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114dm:g03985191006:03985_06_1910-0049/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Detroit, Michigan | 1910 | sanborn03985_012 p49","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T12:31:21Z","modified":"2026-09-21T12:31:21Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114dm:g03985191006:03985_06_1910-0049/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114dm:g03985191006:03985_06_1910-0049","type":"ImageService3","width":1614,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"114.2,299.5 149.7,129.3 1352.7,141.1 1329.7,1944.6 1125.3,1949.0 1132.7,1820.6 27.2,1813.4 26.9,1949.0 -0.0,1949.0 -0.0,298.8 114.2,299.5\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114dm:g03985191006:03985_06_1910-0049/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.07738610772681,42.36474430572787]}},{"type":"Feature","properties":{"resourceCoords":[1614.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.07373952731895,42.365936201995574]}},{"type":"Feature","properties":{"resourceCoords":[1614.0,1949.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.07180525587508,42.36265960181151]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1949.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.07545183628294,42.3614677055438]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114dm:g03985191006:03985_06_1910-0005/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Detroit, Michigan | 1910 | sanborn03985_012 p5","metadata":[{"label":"streets","value":"5"},{"label":"intersections","value":"4"}],"created":"2026-09-21T12:31:21Z","modified":"2026-09-21T12:31:21Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114dm:g03985191006:03985_06_1910-0005/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114dm:g03985191006:03985_06_1910-0005","type":"ImageService3","width":1611,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"-0.0,-0.0 1585.5,0.0 1585.6,52.4 1611.0,52.4 1611.0,1918.6 96.4,1917.1 96.5,1949.0 -0.0,1949.0 -0.0,-0.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114dm:g03985191006:03985_06_1910-0005/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[437.0,984.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-83.0855806,42.377405]}},{"type":"Feature","properties":{"resourceCoords":[437.0,54.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-83.08667,42.379027]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114dm:g03985191006:03985_06_1910-0050__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Detroit, Michigan | 1910 | sanborn03985_012 p50 [1]","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"7"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"6572.0"},{"label":"split_canvas_h","value":"7796.0"}],"created":"2026-09-21T12:31:21Z","modified":"2026-09-21T12:31:21Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114dm:g03985191006:03985_06_1910-0050__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114dm:g03985191006:03985_06_1910-0050","type":"ImageService3","width":1643,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1054.6,111.4 -0.0,120.5 0.0,1664.0 -0.0,1949.0 55.7,1949.0 53.8,1825.3 285.2,1824.0 283.0,1648.5 1643.0,1620.5 1643.0,798.9 1643.0,474.0 1643.0,396.5 1384.6,417.0 1382.0,396.0 1158.2,404.4 1154.3,408.6 1129.1,436.0 1127.0,438.3 1127.2,435.8 931.7,422.9 862.7,439.0 862.6,418.3 862.5,400.8 861.4,176.0 1056.8,181.3 1054.6,111.4\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114dm:g03985191006:03985_06_1910-0050__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[789.0,691.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-83.071867,42.365109]}},{"type":"Feature","properties":{"resourceCoords":[789.0,1248.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-83.071338,42.364181]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114dm:g03985191006:03985_06_1910-0050__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Detroit, Michigan | 1910 | sanborn03985_012 p50 [2]","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"split_canvas_x","value":"4508.0"},{"label":"split_canvas_y","value":"228.0"},{"label":"split_canvas_w","value":"2064.0"},{"label":"split_canvas_h","value":"1525.2"}],"created":"2026-09-21T12:31:21Z","modified":"2026-09-21T12:31:21Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114dm:g03985191006:03985_06_1910-0050__2/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114dm:g03985191006:03985_06_1910-0050","type":"ImageService3","width":1643,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1643.0,292.0 1643.0,196.1 1643.0,170.7 1500.3,122.3 1500.5,153.8 1350.8,149.4 1355.9,189.5 1355.8,189.6 1198.6,360.4 1147.1,372.4 1151.8,396.2 1130.1,396.5 1127.2,435.8 1127.0,438.3 1129.1,436.0 1154.3,408.6 1165.9,396.0 1381.5,392.5 1384.6,417.0 1643.0,396.5 1643.0,292.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114dm:g03985191006:03985_06_1910-0050__2/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[1127.0,57.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.07190686439336,42.366404001543664]}},{"type":"Feature","properties":{"resourceCoords":[1643.0,57.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.07076145324748,42.366798629764375]}},{"type":"Feature","properties":{"resourceCoords":[1643.0,438.3],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.0703695868753,42.366168895698266]}},{"type":"Feature","properties":{"resourceCoords":[1127.0,438.3],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.07151499802117,42.365774267477555]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114dm:g03985191006:03985_06_1910-0051/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Detroit, Michigan | 1910 | sanborn03985_012 p51","metadata":[{"label":"streets","value":"4"},{"label":"intersections","value":"3"}],"created":"2026-09-21T12:31:21Z","modified":"2026-09-21T12:31:21Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114dm:g03985191006:03985_06_1910-0051/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114dm:g03985191006:03985_06_1910-0051","type":"ImageService3","width":1598,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1598.0,1302.1 1554.9,1301.4 1541.2,1949.0 -0.0,1949.0 -0.0,165.3 1058.4,164.3 1051.6,287.8 1300.2,282.7 1304.9,1228.7 1598.0,1233.0 1598.0,1302.1\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114dm:g03985191006:03985_06_1910-0051/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1096.0,164.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-83.0729312,42.362549]}},{"type":"Feature","properties":{"resourceCoords":[112.0,164.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-83.075261,42.361803]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114dm:g03985191006:03985_06_1910-0052/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Detroit, Michigan | 1910 | sanborn03985_012 p52","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T12:31:21Z","modified":"2026-09-21T12:31:21Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114dm:g03985191006:03985_06_1910-0052/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114dm:g03985191006:03985_06_1910-0052","type":"ImageService3","width":1643,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"-0.0,170.9 230.9,174.3 231.3,0.0 1643.0,0.0 1643.0,1398.6 307.8,1363.7 308.2,1291.3 -0.0,1283.7 -0.0,170.9\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114dm:g03985191006:03985_06_1910-0052/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.07261748509417,42.362986285298646]}},{"type":"Feature","properties":{"resourceCoords":[1643.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.06893408489006,42.364198864874325]}},{"type":"Feature","properties":{"resourceCoords":[1643.0,1949.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.06700103252864,42.36094751212562]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1949.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.07068443273275,42.35973493254994]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114dm:g03985191006:03985_06_1910-0053/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Detroit, Michigan | 1910 | sanborn03985_012 p53","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T12:31:21Z","modified":"2026-09-21T12:31:21Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114dm:g03985191006:03985_06_1910-0053/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114dm:g03985191006:03985_06_1910-0053","type":"ImageService3","width":1614,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"-0.0,1949.0 -0.0,2.5 607.0,-0.0 612.9,31.9 991.9,35.3 990.4,186.8 1483.3,189.2 1492.7,1870.0 1614.0,1864.5 1614.0,1949.0 -0.0,1949.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114dm:g03985191006:03985_06_1910-0053/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.10945138633527,42.35001485928357]}},{"type":"Feature","properties":{"resourceCoords":[1614.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.10772189243878,42.347342600195745]}},{"type":"Feature","properties":{"resourceCoords":[1614.0,1949.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.11205749420877,42.34578819288946]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1949.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.11378698810526,42.34846045197728]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114dm:g03985191006:03985_06_1910-0054/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Detroit, Michigan | 1910 | sanborn03985_012 p54","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T12:31:21Z","modified":"2026-09-21T12:31:21Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114dm:g03985191006:03985_06_1910-0054/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114dm:g03985191006:03985_06_1910-0054","type":"ImageService3","width":1643,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"819.7,1845.3 122.0,1949.0 -0.0,1877.8 -0.0,181.3 1098.3,23.9 1643.0,23.9 1220.7,972.9 1242.5,1220.7 1104.3,1225.9 819.7,1845.3\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114dm:g03985191006:03985_06_1910-0054/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.10788430218871,42.347553076539654]}},{"type":"Feature","properties":{"resourceCoords":[1643.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.10611974354215,42.34486510036717]}},{"type":"Feature","properties":{"resourceCoords":[1643.0,1949.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.11040369506787,42.34330710732069]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1949.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.11216825371443,42.34599508349317]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114dm:g03985191006:03985_06_1910-0055/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Detroit, Michigan | 1910 | sanborn03985_012 p55","metadata":[{"label":"streets","value":"7"},{"label":"intersections","value":"8"}],"created":"2026-09-21T12:31:21Z","modified":"2026-09-21T12:31:21Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114dm:g03985191006:03985_06_1910-0055/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114dm:g03985191006:03985_06_1910-0055","type":"ImageService3","width":1614,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1439.0,1068.0 1420.2,1780.8 1614.0,1778.6 1614.0,1949.0 -0.0,1949.0 -0.0,1794.8 53.7,1795.1 95.6,-0.0 860.1,-0.0 854.8,131.8 1614.0,132.8 1614.0,1067.5 1439.0,1068.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114dm:g03985191006:03985_06_1910-0055/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1439.0,1068.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-83.105378,42.346566]}},{"type":"Feature","properties":{"resourceCoords":[90.0,130.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-83.104717,42.349474]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114dm:g03985191006:03985_06_1910-0056/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Detroit, Michigan | 1910 | sanborn03985_012 p56","metadata":[{"label":"streets","value":"7"},{"label":"intersections","value":"10"}],"created":"2026-09-21T12:31:21Z","modified":"2026-09-21T12:31:21Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114dm:g03985191006:03985_06_1910-0056/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114dm:g03985191006:03985_06_1910-0056","type":"ImageService3","width":1643,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1427.0,1540.2 898.1,1563.7 808.3,1766.6 54.1,1774.1 73.2,1065.8 247.1,1065.5 247.5,265.2 1643.0,252.6 1643.0,1756.8 1420.0,1760.0 1427.0,1540.2\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114dm:g03985191006:03985_06_1910-0056/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1120.0,1062.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-83.104275,42.344859]}},{"type":"Feature","properties":{"resourceCoords":[1521.0,137.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-83.101812,42.344919]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114dm:g03985191006:03985_06_1910-0057/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Detroit, Michigan | 1910 | sanborn03985_012 p57","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T12:31:21Z","modified":"2026-09-21T12:31:21Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114dm:g03985191006:03985_06_1910-0057/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114dm:g03985191006:03985_06_1910-0057","type":"ImageService3","width":1614,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"124.2,184.1 127.5,-0.0 1433.7,-0.0 1428.0,149.2 1614.0,154.3 1614.0,1949.0 1514.7,1949.0 1514.3,1834.5 754.2,1840.5 759.0,1707.9 -0.0,1714.9 3.7,1424.2 71.2,1423.6 70.9,183.1 124.2,184.1\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114dm:g03985191006:03985_06_1910-0057/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.10066802809352,42.35085221462517]}},{"type":"Feature","properties":{"resourceCoords":[1614.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.09902780403387,42.34822421786805]}},{"type":"Feature","properties":{"resourceCoords":[1614.0,1949.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.1032916466315,42.346750061827244]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1949.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.10493187069116,42.349378058584364]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114dm:g03985191006:03985_06_1910-0058/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Detroit, Michigan | 1910 | sanborn03985_012 p58","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T12:31:21Z","modified":"2026-09-21T12:31:21Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114dm:g03985191006:03985_06_1910-0058/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114dm:g03985191006:03985_06_1910-0058","type":"ImageService3","width":1643,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"171.0,157.4 1602.2,217.2 1614.5,-0.0 1643.0,-0.0 1643.0,1949.0 38.9,1949.0 39.1,1933.6 137.5,1935.4 171.0,157.4\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114dm:g03985191006:03985_06_1910-0058/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.09920327665219,42.34851102872197]}},{"type":"Feature","properties":{"resourceCoords":[1643.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.09745023330122,42.34583513151721]}},{"type":"Feature","properties":{"resourceCoords":[1643.0,1949.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.10171499721189,42.34428732867897]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1949.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.10346804056286,42.346963225883734]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114dm:g03985191006:03985_06_1910-0059__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Detroit, Michigan | 1910 | sanborn03985_012 p59 [1]","metadata":[{"label":"streets","value":"5"},{"label":"intersections","value":"7"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"3825.6"},{"label":"split_canvas_w","value":"6456.0"},{"label":"split_canvas_h","value":"3970.4"}],"created":"2026-09-21T12:31:21Z","modified":"2026-09-21T12:31:21Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114dm:g03985191006:03985_06_1910-0059__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114dm:g03985191006:03985_06_1910-0059","type":"ImageService3","width":1614,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1551.5,1023.0 906.4,957.1 0.0,956.4 -0.0,1907.8 1614.0,1892.7 1614.0,957.7 1570.7,957.7 1551.5,1023.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114dm:g03985191006:03985_06_1910-0059__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1480.0,1894.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-83.0981,42.345952]}},{"type":"Feature","properties":{"resourceCoords":[1480.0,1024.4],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-83.0961338,42.3465654]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114dm:g03985191006:03985_06_1910-0006/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Detroit, Michigan | 1910 | sanborn03985_012 p6","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T12:31:21Z","modified":"2026-09-21T12:31:21Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114dm:g03985191006:03985_06_1910-0006/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114dm:g03985191006:03985_06_1910-0006","type":"ImageService3","width":1621,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"260.2,1926.8 166.4,1926.3 163.1,45.1 254.9,45.4 254.8,10.7 1578.5,14.8 1621.0,60.6 1621.0,1928.5 260.2,1926.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114dm:g03985191006:03985_06_1910-0006/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.08428456814704,42.37992569901502]}},{"type":"Feature","properties":{"resourceCoords":[1621.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.08057930751738,42.38129675384215]}},{"type":"Feature","properties":{"resourceCoords":[1621.0,1949.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.07836335592324,42.37798261298173]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1949.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.0820686165529,42.3766115581546]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114dm:g03985191006:03985_06_1910-0060__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Detroit, Michigan | 1910 | sanborn03985_012 p60 [1]","metadata":[{"label":"streets","value":"3"},{"label":"intersections","value":"4"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"3208.8"},{"label":"split_canvas_h","value":"7796.0"}],"created":"2026-09-21T12:31:21Z","modified":"2026-09-21T12:31:21Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114dm:g03985191006:03985_06_1910-0060__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114dm:g03985191006:03985_06_1910-0060","type":"ImageService3","width":1643,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"160.3,586.9 151.1,1600.2 697.6,1556.0 729.1,1949.0 778.3,1949.0 779.4,1810.8 788.8,1064.4 648.5,1072.4 649.6,541.0 160.3,586.9\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114dm:g03985191006:03985_06_1910-0060__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[132.0,541.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-83.0843204,42.3618461]}},{"type":"Feature","properties":{"resourceCoords":[650.1,541.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-83.0831566,42.3622112]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114dm:g03985191006:03985_06_1910-0060__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Detroit, Michigan | 1910 | sanborn03985_012 p60 [2]","metadata":[{"label":"streets","value":"3"},{"label":"intersections","value":"1"},{"label":"split_canvas_x","value":"3113.2"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"3458.8"},{"label":"split_canvas_h","value":"7796.0"}],"created":"2026-09-21T12:31:21Z","modified":"2026-09-21T12:31:21Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114dm:g03985191006:03985_06_1910-0060__2/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114dm:g03985191006:03985_06_1910-0060","type":"ImageService3","width":1643,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1643.0,1949.0 1643.0,0.0 1074.5,0.0 919.3,1949.0 1643.0,1949.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114dm:g03985191006:03985_06_1910-0060__2/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[778.3,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.08396054712755,42.359829073405564]}},{"type":"Feature","properties":{"resourceCoords":[1643.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.08207844474032,42.36055677804869]}},{"type":"Feature","properties":{"resourceCoords":[1643.0,1949.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.07986106541907,42.35742096717507]}},{"type":"Feature","properties":{"resourceCoords":[778.3,1949.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.0817431678063,42.35669326253194]}},{"type":"Feature","properties":{"resourceCoords":[978.2,1201.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-83.082159,42.358065]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114dm:g03985191006:03985_06_1910-0061/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Detroit, Michigan | 1910 | sanborn03985_012 p61","metadata":[{"label":"streets","value":"5"},{"label":"intersections","value":"8"}],"created":"2026-09-21T12:31:21Z","modified":"2026-09-21T12:31:21Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114dm:g03985191006:03985_06_1910-0061/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114dm:g03985191006:03985_06_1910-0061","type":"ImageService3","width":1614,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1455.2,1949.0 -0.0,1949.0 -0.0,1626.2 83.2,1550.7 89.2,1071.6 -0.0,1071.5 -0.0,1032.0 92.4,957.0 102.4,114.9 -0.0,112.2 0.0,0.0 865.4,-0.0 864.0,135.2 1145.7,134.3 1133.6,144.2 1096.2,235.6 1382.2,238.6 1378.8,1012.5 1614.0,1013.5 1614.0,1670.2 1459.6,1667.8 1455.2,1949.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114dm:g03985191006:03985_06_1910-0061/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1278.0,1012.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-83.0961077,42.3498609]}},{"type":"Feature","properties":{"resourceCoords":[90.0,1012.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-83.097275,42.351819]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114dm:g03985191006:03985_06_1910-0062/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Detroit, Michigan | 1910 | sanborn03985_012 p62","metadata":[{"label":"streets","value":"5"},{"label":"intersections","value":"6"}],"created":"2026-09-21T12:31:21Z","modified":"2026-09-21T12:31:21Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114dm:g03985191006:03985_06_1910-0062/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114dm:g03985191006:03985_06_1910-0062","type":"ImageService3","width":1643,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"234.5,1584.2 232.1,1012.0 -0.0,1011.9 -0.0,248.2 1563.7,257.9 1563.5,370.1 1643.0,370.6 1643.0,1744.2 234.5,1584.2\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114dm:g03985191006:03985_06_1910-0062/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[775.0,1012.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-83.0952458,42.3483974]}},{"type":"Feature","properties":{"resourceCoords":[324.0,1012.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-83.0956904,42.3491521]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114dm:g03985191006:03985_06_1910-0063/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Detroit, Michigan | 1910 | sanborn03985_012 p63","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T12:31:21Z","modified":"2026-09-21T12:31:21Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114dm:g03985191006:03985_06_1910-0063/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114dm:g03985191006:03985_06_1910-0063","type":"ImageService3","width":1610,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"112.6,1844.0 113.4,0.0 205.4,36.9 1610.0,1833.8 1610.0,1949.0 -0.0,1949.0 -0.0,1843.4 112.6,1844.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114dm:g03985191006:03985_06_1910-0063/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.09481047567913,42.35064217349836]}},{"type":"Feature","properties":{"resourceCoords":[1610.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.09117768283265,42.35180888883423]}},{"type":"Feature","properties":{"resourceCoords":[1610.0,1949.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.0892800022944,42.34853582584955]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1949.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.09291279514088,42.34736911051368]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114dm:g03985191006:03985_06_1910-0064/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Detroit, Michigan | 1910 | sanborn03985_012 p64","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T12:31:21Z","modified":"2026-09-21T12:31:21Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114dm:g03985191006:03985_06_1910-0064/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114dm:g03985191006:03985_06_1910-0064","type":"ImageService3","width":1643,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1567.7,1949.0 1236.5,1949.0 -0.0,320.9 -0.0,38.8 1607.3,70.7 1567.7,1949.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114dm:g03985191006:03985_06_1910-0064/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.0945970003244,42.35124361527818]}},{"type":"Feature","properties":{"resourceCoords":[1643.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.09096968492717,42.35245053397442]}},{"type":"Feature","properties":{"resourceCoords":[1643.0,1949.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.0890460167353,42.3492480886645]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1949.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.09267333213252,42.34804116996826]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114dm:g03985191006:03985_06_1910-0065/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Detroit, Michigan | 1910 | sanborn03985_012 p65","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T12:31:21Z","modified":"2026-09-21T12:31:21Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114dm:g03985191006:03985_06_1910-0065/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114dm:g03985191006:03985_06_1910-0065","type":"ImageService3","width":1610,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"321.8,1949.0 336.0,1731.0 32.5,1728.7 44.2,164.3 367.2,189.0 377.9,-0.0 1154.5,-0.0 1152.8,176.6 1610.0,182.5 1610.0,1296.1 1401.0,1294.6 1401.1,1732.8 789.6,1729.6 785.1,1949.0 321.8,1949.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114dm:g03985191006:03985_06_1910-0065/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.0878748814048,42.35486956188069]}},{"type":"Feature","properties":{"resourceCoords":[1610.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.08631516308103,42.35218954884854]}},{"type":"Feature","properties":{"resourceCoords":[1610.0,1949.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.09067448301104,42.35078435492415]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1949.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.09223420133482,42.3534643679563]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114dm:g03985191006:03985_06_1910-0066/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Detroit, Michigan | 1910 | sanborn03985_012 p66","metadata":[{"label":"streets","value":"9"},{"label":"intersections","value":"18"}],"created":"2026-09-21T12:31:21Z","modified":"2026-09-21T12:31:21Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114dm:g03985191006:03985_06_1910-0066/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114dm:g03985191006:03985_06_1910-0066","type":"ImageService3","width":1643,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1470.4,590.5 1643.0,589.4 1643.0,1949.0 1458.7,1920.9 1422.3,1949.0 1255.7,1949.0 1253.5,1755.5 -0.0,1730.1 -0.0,1293.6 209.2,1296.2 209.5,187.0 1473.8,201.9 1470.4,590.5\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114dm:g03985191006:03985_06_1910-0066/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[814.0,783.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-83.0874686,42.3506224]}},{"type":"Feature","properties":{"resourceCoords":[566.0,192.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-83.0863852,42.3514628]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114dm:g03985191006:03985_06_1910-0067/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Detroit, Michigan | 1910 | sanborn03985_012 p67","metadata":[{"label":"streets","value":"4"},{"label":"intersections","value":"3"}],"created":"2026-09-21T12:31:21Z","modified":"2026-09-21T12:31:21Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114dm:g03985191006:03985_06_1910-0067/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114dm:g03985191006:03985_06_1910-0067","type":"ImageService3","width":1614,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1173.6,1533.1 1170.8,1358.4 398.6,1374.5 383.1,423.2 1558.1,409.1 1604.9,1529.9 1173.6,1533.1\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114dm:g03985191006:03985_06_1910-0067/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1164.0,1006.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-83.0859576,42.3532005]}},{"type":"Feature","properties":{"resourceCoords":[71.0,1544.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-83.0881995,42.3546775]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114dm:g03985191006:03985_06_1910-0068/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Detroit, Michigan | 1910 | sanborn03985_012 p68","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T12:31:21Z","modified":"2026-09-21T12:31:21Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114dm:g03985191006:03985_06_1910-0068/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114dm:g03985191006:03985_06_1910-0068","type":"ImageService3","width":1643,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1643.0,434.6 1643.0,1949.0 1443.4,1949.0 1451.6,1559.5 166.8,1536.2 162.4,404.6 1643.0,434.6\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114dm:g03985191006:03985_06_1910-0068/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.08348898105088,42.35351326826124]}},{"type":"Feature","properties":{"resourceCoords":[1643.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.08185190886061,42.350788418284665]}},{"type":"Feature","properties":{"resourceCoords":[1643.0,1949.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.08619504008507,42.349343124859494]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1949.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.08783211227534,42.35206797483607]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114dm:g03985191006:03985_06_1910-0069/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Detroit, Michigan | 1910 | sanborn03985_012 p69","metadata":[{"label":"streets","value":"5"},{"label":"intersections","value":"4"}],"created":"2026-09-21T12:31:21Z","modified":"2026-09-21T12:31:21Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114dm:g03985191006:03985_06_1910-0069/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114dm:g03985191006:03985_06_1910-0069","type":"ImageService3","width":1602,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"125.9,247.7 1602.0,229.8 1602.0,1733.9 122.6,1727.4 125.9,247.7\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114dm:g03985191006:03985_06_1910-0069/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[663.0,1734.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-83.0829953,42.3532664]}},{"type":"Feature","properties":{"resourceCoords":[1094.0,1734.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-83.0820373,42.3535658]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114dm:g03985191006:03985_06_1910-0007/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Detroit, Michigan | 1910 | sanborn03985_012 p7","metadata":[{"label":"streets","value":"4"},{"label":"intersections","value":"3"}],"created":"2026-09-21T12:31:21Z","modified":"2026-09-21T12:31:21Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114dm:g03985191006:03985_06_1910-0007/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114dm:g03985191006:03985_06_1910-0007","type":"ImageService3","width":1611,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"-0.0,121.8 1611.0,125.5 1611.0,1877.3 8.5,1870.8 -0.0,121.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114dm:g03985191006:03985_06_1910-0007/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[363.0,619.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-83.083937,42.374964]}},{"type":"Feature","properties":{"resourceCoords":[363.0,1872.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-83.082553,42.37291]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114dm:g03985191006:03985_06_1910-0070/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Detroit, Michigan | 1910 | sanborn03985_012 p70","metadata":[{"label":"streets","value":"4"},{"label":"intersections","value":"2"}],"created":"2026-09-21T12:31:21Z","modified":"2026-09-21T12:31:21Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114dm:g03985191006:03985_06_1910-0070/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114dm:g03985191006:03985_06_1910-0070","type":"ImageService3","width":1643,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"765.5,1949.0 765.5,1738.5 293.6,1738.5 294.0,93.5 765.9,87.9 764.8,11.3 903.2,0.0 1643.0,0.0 1643.0,1949.0 765.5,1949.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114dm:g03985191006:03985_06_1910-0070/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[197.0,1738.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-83.0811046,42.3538575]}},{"type":"Feature","properties":{"resourceCoords":[766.0,1738.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-83.0799494,42.3542188]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114dm:g03985191006:03985_06_1910-0071/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Detroit, Michigan | 1910 | sanborn03985_012 p71","metadata":[{"label":"streets","value":"5"},{"label":"intersections","value":"11"}],"created":"2026-09-21T12:31:21Z","modified":"2026-09-21T12:31:21Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114dm:g03985191006:03985_06_1910-0071/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114dm:g03985191006:03985_06_1910-0071","type":"ImageService3","width":1609,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"-0.0,1797.2 131.0,1794.1 134.9,307.6 1502.6,313.6 1503.7,1949.0 -0.0,1949.0 -0.0,1797.2\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114dm:g03985191006:03985_06_1910-0071/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1503.0,954.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-83.0805678,42.3527898]}},{"type":"Feature","properties":{"resourceCoords":[948.0,314.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-83.0823958,42.3534536]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114dm:g03985191006:03985_06_1910-0072/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Detroit, Michigan | 1910 | sanborn03985_012 p72","metadata":[{"label":"streets","value":"3"},{"label":"intersections","value":"2"}],"created":"2026-09-21T12:31:21Z","modified":"2026-09-21T12:31:21Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114dm:g03985191006:03985_06_1910-0072/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114dm:g03985191006:03985_06_1910-0072","type":"ImageService3","width":1643,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1643.0,1949.0 272.5,1940.2 272.6,322.6 816.9,322.6 816.9,513.7 1613.4,513.8 1613.4,0.0 1643.0,0.0 1643.0,1949.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114dm:g03985191006:03985_06_1910-0072/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[272.0,956.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-83.0805678,42.3527898]}},{"type":"Feature","properties":{"resourceCoords":[273.0,1612.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-83.0799462,42.3517046]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114dm:g03985191006:03985_06_1910-0076/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Detroit, Michigan | 1910 | sanborn03985_012 p76","metadata":[{"label":"streets","value":"2"},{"label":"intersections","value":"1"}],"created":"2026-09-21T12:31:21Z","modified":"2026-09-21T12:31:21Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114dm:g03985191006:03985_06_1910-0076/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114dm:g03985191006:03985_06_1910-0076","type":"ImageService3","width":1643,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1643.0,1949.0 -0.0,1949.0 0.0,-0.0 109.0,-0.0 112.4,366.7 1643.0,371.7 1643.0,1949.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114dm:g03985191006:03985_06_1910-0076/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.07195384595752,42.35728719715878]}},{"type":"Feature","properties":{"resourceCoords":[1643.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.07036853531956,42.35454415185273]}},{"type":"Feature","properties":{"resourceCoords":[1643.0,1949.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.07476897803683,42.353153560469075]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1949.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.07635428867479,42.35589660577513]}},{"type":"Feature","properties":{"resourceCoords":[1554.0,685.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-83.072001,42.354204]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114dm:g03985191006:03985_06_1910-0078/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Detroit, Michigan | 1910 | sanborn03985_012 p78","metadata":[{"label":"streets","value":"3"},{"label":"intersections","value":"2"}],"created":"2026-09-21T12:31:21Z","modified":"2026-09-21T12:31:21Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114dm:g03985191006:03985_06_1910-0078/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114dm:g03985191006:03985_06_1910-0078","type":"ImageService3","width":1643,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1643.0,1949.0 -0.0,1929.7 -0.0,328.6 220.7,334.2 227.6,-0.0 1362.0,-0.0 1359.3,253.2 1459.5,254.3 1461.8,-0.0 1643.0,-0.0 1643.0,1949.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114dm:g03985191006:03985_06_1910-0078/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.06833413688535,42.35824483137517]}},{"type":"Feature","properties":{"resourceCoords":[1643.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.06671415213985,42.35551288578128]}},{"type":"Feature","properties":{"resourceCoords":[1643.0,1949.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.0710967884988,42.35409187921336]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1949.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.07271677324431,42.35682382480724]}},{"type":"Feature","properties":{"resourceCoords":[1454.0,861.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-83.0689352,42.3553689]}},{"type":"Feature","properties":{"resourceCoords":[1454.0,861.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-83.0688366,42.3551994]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114dm:g03985191006:03985_06_1910-0079/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Detroit, Michigan | 1910 | sanborn03985_012 p79","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T12:31:21Z","modified":"2026-09-21T12:31:21Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114dm:g03985191006:03985_06_1910-0079/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114dm:g03985191006:03985_06_1910-0079","type":"ImageService3","width":1621,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"474.9,1373.8 479.5,1949.0 -0.0,1949.0 -0.0,-0.0 1621.0,0.0 1621.0,1244.2 474.9,1373.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114dm:g03985191006:03985_06_1910-0079/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.07067777336324,42.360907125616365]}},{"type":"Feature","properties":{"resourceCoords":[1621.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.06701980040327,42.36202716378774]}},{"type":"Feature","properties":{"resourceCoords":[1621.0,1949.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.06521010508655,42.35875431831404]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1949.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.06886807804652,42.35763428014267]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114dm:g03985191006:03985_06_1910-0008/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Detroit, Michigan | 1910 | sanborn03985_012 p8","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T12:31:21Z","modified":"2026-09-21T12:31:21Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114dm:g03985191006:03985_06_1910-0008/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114dm:g03985191006:03985_06_1910-0008","type":"ImageService3","width":1621,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1597.2,1875.8 221.7,1877.0 211.1,117.6 1621.0,114.9 1621.0,1949.0 1597.2,1875.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114dm:g03985191006:03985_06_1910-0008/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.08209156449611,42.376891515663374]}},{"type":"Feature","properties":{"resourceCoords":[1621.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.07852345871238,42.37820123159227]}},{"type":"Feature","properties":{"resourceCoords":[1621.0,1949.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.0764067472687,42.37500961420981]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1949.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.07997485305243,42.37369989828091]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114dm:g03985191006:03985_06_1910-0080/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Detroit, Michigan | 1910 | sanborn03985_012 p80","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"12"}],"created":"2026-09-21T12:31:21Z","modified":"2026-09-21T12:31:21Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114dm:g03985191006:03985_06_1910-0080/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114dm:g03985191006:03985_06_1910-0080","type":"ImageService3","width":1643,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"-0.0,1826.7 253.1,1821.8 240.8,692.2 383.4,693.6 387.0,118.9 1339.3,0.0 1643.0,0.0 1643.0,1949.0 254.4,1949.0 -0.0,1926.9 -0.0,1826.7\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114dm:g03985191006:03985_06_1910-0080/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[387.0,1290.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-83.0672039,42.3569709]}},{"type":"Feature","properties":{"resourceCoords":[387.0,119.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-83.0683304,42.3589283]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114dm:g03985191006:03985_06_1910-0081/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Detroit, Michigan | 1910 | sanborn03985_012 p81","metadata":[{"label":"streets","value":"8"},{"label":"intersections","value":"17"}],"created":"2026-09-21T12:31:21Z","modified":"2026-09-21T12:31:21Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114dm:g03985191006:03985_06_1910-0081/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114dm:g03985191006:03985_06_1910-0081","type":"ImageService3","width":1621,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"-0.0,-0.0 1210.0,-0.0 1224.2,1949.0 -0.0,1949.0 -0.0,-0.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114dm:g03985191006:03985_06_1910-0081/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[626.0,774.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-83.116285,42.344641]}},{"type":"Feature","properties":{"resourceCoords":[1478.0,1831.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-83.117587,42.342394]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114dm:g03985191006:03985_06_1910-0082/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Detroit, Michigan | 1910 | sanborn03985_012 p82","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"7"}],"created":"2026-09-21T12:31:21Z","modified":"2026-09-21T12:31:21Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114dm:g03985191006:03985_06_1910-0082/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114dm:g03985191006:03985_06_1910-0082","type":"ImageService3","width":1643,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"-0.0,24.5 329.0,26.9 373.1,154.6 1344.0,156.0 1340.0,1949.0 -0.0,1949.0 -0.0,24.5\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114dm:g03985191006:03985_06_1910-0082/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[250.0,1824.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-83.117587,42.342394]}},{"type":"Feature","properties":{"resourceCoords":[1344.0,156.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-83.1126546,42.3420825]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114dm:g03985191006:03985_06_1910-0083/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Detroit, Michigan | 1910 | sanborn03985_012 p83","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"8"}],"created":"2026-09-21T12:31:21Z","modified":"2026-09-21T12:31:21Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114dm:g03985191006:03985_06_1910-0083/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114dm:g03985191006:03985_06_1910-0083","type":"ImageService3","width":1621,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1621.0,1295.7 1621.0,1786.9 1098.5,1785.2 1098.9,1949.0 40.7,1949.0 38.7,121.8 1485.7,122.8 1498.7,1295.3 1621.0,1295.7\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114dm:g03985191006:03985_06_1910-0083/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1095.0,733.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-83.1128211,42.3398415]}},{"type":"Feature","properties":{"resourceCoords":[1095.0,90.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-83.1114296,42.3403927]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114dm:g03985191006:03985_06_1910-0084/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Detroit, Michigan | 1910 | sanborn03985_012 p84","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T12:31:21Z","modified":"2026-09-21T12:31:21Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114dm:g03985191006:03985_06_1910-0084/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114dm:g03985191006:03985_06_1910-0084","type":"ImageService3","width":1643,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"117.4,1800.0 122.9,1304.7 -0.0,1303.7 -0.0,90.8 1599.2,99.5 1592.0,1245.4 1557.5,1333.4 1546.0,1747.2 1529.3,1806.9 117.4,1800.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114dm:g03985191006:03985_06_1910-0084/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.1107886476028,42.33984485372777]}},{"type":"Feature","properties":{"resourceCoords":[1643.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.10887370376668,42.337235635480226]}},{"type":"Feature","properties":{"resourceCoords":[1643.0,1949.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.11303162156854,42.3355446530315]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1949.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.11494656540467,42.33815387127904]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114dm:g03985191006:03985_06_1910-0085__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Detroit, Michigan | 1910 | sanborn03985_012 p85 [2]","metadata":[{"label":"streets","value":"5"},{"label":"intersections","value":"6"},{"label":"split_canvas_x","value":"2630.0"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"3794.0"},{"label":"split_canvas_h","value":"7796.0"}],"created":"2026-09-21T12:31:21Z","modified":"2026-09-21T12:31:21Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114dm:g03985191006:03985_06_1910-0085__2/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114dm:g03985191006:03985_06_1910-0085","type":"ImageService3","width":1606,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"659.2,0.0 657.6,1807.6 755.1,1807.6 755.1,1906.5 1606.0,1918.0 1548.5,1902.7 1544.0,34.3 1385.3,35.2 1385.2,0.0 659.2,0.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114dm:g03985191006:03985_06_1910-0085__2/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1149.2,1904.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-83.113753,42.335495]}},{"type":"Feature","properties":{"resourceCoords":[1149.2,36.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-83.115975,42.338583]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114dm:g03985191006:03985_06_1910-0086/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Detroit, Michigan | 1910 | sanborn03985_012 p86","metadata":[{"label":"streets","value":"5"},{"label":"intersections","value":"5"}],"created":"2026-09-21T12:31:21Z","modified":"2026-09-21T12:31:21Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114dm:g03985191006:03985_06_1910-0086/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114dm:g03985191006:03985_06_1910-0086","type":"ImageService3","width":1643,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"594.4,666.0 900.5,68.9 1557.7,75.3 1557.0,1921.7 586.5,1916.8 543.1,1789.0 -0.0,1783.0 -0.0,661.4 594.4,666.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114dm:g03985191006:03985_06_1910-0086/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[594.0,666.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-83.11106,42.344737]}},{"type":"Feature","properties":{"resourceCoords":[1562.0,666.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-83.1099101,42.3431773]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114dm:g03985191006:03985_06_1910-0087/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Detroit, Michigan | 1910 | sanborn03985_012 p87","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T12:31:21Z","modified":"2026-09-21T12:31:21Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114dm:g03985191006:03985_06_1910-0087/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114dm:g03985191006:03985_06_1910-0087","type":"ImageService3","width":1621,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1499.3,1949.0 52.0,1949.0 49.5,41.8 1496.2,41.0 1499.3,1949.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114dm:g03985191006:03985_06_1910-0087/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.10859439822167,42.343818221738196]}},{"type":"Feature","properties":{"resourceCoords":[1621.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.10671743315113,42.34122471785992]}},{"type":"Feature","properties":{"resourceCoords":[1621.0,1949.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.11090666648155,42.33954488454227]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1949.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.11278363155209,42.342138388420544]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114dm:g03985191006:03985_06_1910-0088/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Detroit, Michigan | 1910 | sanborn03985_012 p88","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T12:31:21Z","modified":"2026-09-21T12:31:21Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114dm:g03985191006:03985_06_1910-0088/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114dm:g03985191006:03985_06_1910-0088","type":"ImageService3","width":1643,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1578.4,1921.0 -0.0,1900.2 22.7,39.3 1643.0,59.2 1578.4,1921.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114dm:g03985191006:03985_06_1910-0088/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.10689259789741,42.34146034004216]}},{"type":"Feature","properties":{"resourceCoords":[1643.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.10492495315279,42.338827993665305]}},{"type":"Feature","properties":{"resourceCoords":[1643.0,1949.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.10911983325512,42.33709051802592]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1949.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.11108747799975,42.33972286440277]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114dm:g03985191006:03985_06_1910-0089__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Detroit, Michigan | 1910 | sanborn03985_012 p89 [1]","metadata":[{"label":"streets","value":"8"},{"label":"intersections","value":"8"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"6380.0"},{"label":"split_canvas_h","value":"7796.0"}],"created":"2026-09-21T12:31:21Z","modified":"2026-09-21T12:31:21Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114dm:g03985191006:03985_06_1910-0089__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114dm:g03985191006:03985_06_1910-0089","type":"ImageService3","width":1595,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"210.5,15.2 219.8,1901.0 706.8,1949.0 1595.0,1908.9 1595.0,478.9 1114.4,270.7 1113.8,229.2 699.6,23.1 703.2,83.8 210.5,15.2\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114dm:g03985191006:03985_06_1910-0089__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[808.0,1896.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-83.105686,42.341893]}},{"type":"Feature","properties":{"resourceCoords":[1396.0,370.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-83.106158,42.344824]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114dm:g03985191006:03985_06_1910-0089__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Detroit, Michigan | 1910 | sanborn03985_012 p89 [2]","metadata":[{"label":"streets","value":"2"},{"label":"intersections","value":"2"},{"label":"split_canvas_x","value":"4442.4"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"1937.6"},{"label":"split_canvas_h","value":"1915.6"}],"created":"2026-09-21T12:31:21Z","modified":"2026-09-21T12:31:21Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114dm:g03985191006:03985_06_1910-0089__2/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114dm:g03985191006:03985_06_1910-0089","type":"ImageService3","width":1595,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1116.0,0.0 1113.6,213.9 1114.4,270.7 1595.0,478.9 1595.0,0.0 1571.0,118.3 1367.0,0.0 1116.0,0.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114dm:g03985191006:03985_06_1910-0089__2/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[1110.6,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.10924434103924,42.34453931885801]}},{"type":"Feature","properties":{"resourceCoords":[1595.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.1082263761919,42.34499624856767]}},{"type":"Feature","properties":{"resourceCoords":[1595.0,478.9],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.10761609176596,42.344252823090265]}},{"type":"Feature","properties":{"resourceCoords":[1110.6,478.9],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.10863405661331,42.34379589338061]}},{"type":"Feature","properties":{"resourceCoords":[1571.0,118.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-83.108126,42.34479]}},{"type":"Feature","properties":{"resourceCoords":[1571.0,118.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-83.1076,42.344798]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114dm:g03985191006:03985_06_1910-0009/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Detroit, Michigan | 1910 | sanborn03985_012 p9","metadata":[{"label":"streets","value":"5"},{"label":"intersections","value":"4"}],"created":"2026-09-21T12:31:21Z","modified":"2026-09-21T12:31:21Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114dm:g03985191006:03985_06_1910-0009/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114dm:g03985191006:03985_06_1910-0009","type":"ImageService3","width":1614,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"363.9,1949.0 300.2,1626.6 276.7,1582.4 252.6,1544.2 -0.0,1555.5 -0.0,130.7 1614.0,137.8 1614.0,1949.0 363.9,1949.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114dm:g03985191006:03985_06_1910-0009/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[357.0,1808.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-83.0807138,42.3701823]}},{"type":"Feature","properties":{"resourceCoords":[357.0,132.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-83.082553,42.37291]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114dm:g03985191006:03985_06_1910-0090/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Detroit, Michigan | 1910 | sanborn03985_012 p90","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T12:31:21Z","modified":"2026-09-21T12:31:21Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114dm:g03985191006:03985_06_1910-0090/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114dm:g03985191006:03985_06_1910-0090","type":"ImageService3","width":1643,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"-0.0,1832.9 -0.0,1674.9 252.1,1684.0 274.1,57.6 752.4,65.5 756.8,117.5 840.9,119.7 858.3,67.7 1639.7,100.5 1643.0,1949.0 1610.6,1949.0 1611.5,1888.7 -0.0,1832.9\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114dm:g03985191006:03985_06_1910-0090/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.10760626352905,42.34123694713104]}},{"type":"Feature","properties":{"resourceCoords":[1643.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.10408539634177,42.34269936177027]}},{"type":"Feature","properties":{"resourceCoords":[1643.0,1949.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.10175486628657,42.33959040980385]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1949.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.10527573347385,42.33812799516461]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114dm:g03985191006:03985_06_1910-0091/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Detroit, Michigan | 1910 | sanborn03985_012 p91","metadata":[{"label":"streets","value":"5"},{"label":"intersections","value":"7"}],"created":"2026-09-21T12:31:21Z","modified":"2026-09-21T12:31:21Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114dm:g03985191006:03985_06_1910-0091/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114dm:g03985191006:03985_06_1910-0091","type":"ImageService3","width":1623,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"-0.0,1638.7 -0.0,0.0 171.8,0.0 171.8,102.5 1475.0,120.6 1477.2,1631.0 -0.0,1638.7\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114dm:g03985191006:03985_06_1910-0091/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[990.0,1634.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-83.111103,42.333394]}},{"type":"Feature","properties":{"resourceCoords":[580.0,100.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-83.113753,42.335495]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114dm:g03985191006:03985_06_1910-0092/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Detroit, Michigan | 1910 | sanborn03985_012 p92","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T12:31:21Z","modified":"2026-09-21T12:31:21Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114dm:g03985191006:03985_06_1910-0092/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114dm:g03985191006:03985_06_1910-0092","type":"ImageService3","width":1643,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1441.4,1795.5 130.9,1772.1 155.5,128.8 232.7,163.6 1464.3,182.1 1441.4,1795.5\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114dm:g03985191006:03985_06_1910-0092/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.11228096219871,42.33628991448943]}},{"type":"Feature","properties":{"resourceCoords":[1643.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.10877523712564,42.337744510824955]}},{"type":"Feature","properties":{"resourceCoords":[1643.0,1949.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.10645734809661,42.33464868687761]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1949.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.10996307316968,42.33319409054208]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114dm:g03985191006:03985_06_1910-0093/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Detroit, Michigan | 1910 | sanborn03985_012 p93","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T12:31:21Z","modified":"2026-09-21T12:31:21Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114dm:g03985191006:03985_06_1910-0093/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114dm:g03985191006:03985_06_1910-0093","type":"ImageService3","width":1607,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1607.0,1846.2 1607.0,1949.0 -0.0,1949.0 -0.0,-0.0 26.7,0.0 28.9,188.7 198.5,186.8 606.4,181.6 1499.2,172.3 1517.5,1803.3 1607.0,1846.2\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114dm:g03985191006:03985_06_1910-0093/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.11351314810092,42.332826133171416]}},{"type":"Feature","properties":{"resourceCoords":[1607.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.11001488582404,42.33418335748907]}},{"type":"Feature","properties":{"resourceCoords":[1607.0,1949.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.10780383208174,42.331024742985115]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1949.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.11130209435862,42.32966751866746]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114dm:g03985191006:03985_06_1910-0094__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Detroit, Michigan | 1910 | sanborn03985_012 p94 [2]","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"10"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"6544.0"},{"label":"split_canvas_h","value":"7796.0"}],"created":"2026-09-21T12:31:21Z","modified":"2026-09-21T12:31:21Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114dm:g03985191006:03985_06_1910-0094__2/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114dm:g03985191006:03985_06_1910-0094","type":"ImageService3","width":1636,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"14.5,1513.6 789.7,1949.0 1462.4,1949.0 1437.3,36.1 165.1,49.5 14.5,1513.6\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114dm:g03985191006:03985_06_1910-0094__2/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1001.0,1930.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-83.1058263,42.3312111]}},{"type":"Feature","properties":{"resourceCoords":[576.0,45.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-83.108982,42.333954]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114dm:g03985191006:03985_06_1910-0095/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Detroit, Michigan | 1910 | sanborn03985_012 p95","metadata":[{"label":"streets","value":"5"},{"label":"intersections","value":"10"}],"created":"2026-09-21T12:31:21Z","modified":"2026-09-21T12:31:21Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114dm:g03985191006:03985_06_1910-0095/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114dm:g03985191006:03985_06_1910-0095","type":"ImageService3","width":1622,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"284.7,1871.4 310.5,327.5 470.9,325.2 471.9,68.7 1622.0,68.1 1622.0,1871.8 284.7,1871.4\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114dm:g03985191006:03985_06_1910-0095/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[285.0,1256.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-83.1076215,42.3378183]}},{"type":"Feature","properties":{"resourceCoords":[285.0,684.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-83.1063963,42.3383033]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114dm:g03985191006:03985_06_1910-0096/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Detroit, Michigan | 1910 | sanborn03985_012 p96","metadata":[{"label":"streets","value":"4"},{"label":"intersections","value":"4"}],"created":"2026-09-21T12:31:21Z","modified":"2026-09-21T12:31:21Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114dm:g03985191006:03985_06_1910-0096/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114dm:g03985191006:03985_06_1910-0096","type":"ImageService3","width":1636,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1349.2,686.0 1348.8,1866.7 141.6,1870.5 144.6,69.4 1221.3,73.7 1218.6,685.8 1349.2,686.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114dm:g03985191006:03985_06_1910-0096/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[435.0,684.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-83.104526,42.335725]}},{"type":"Feature","properties":{"resourceCoords":[435.0,1871.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-83.10707,42.334714]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114dm:g03985191006:03985_06_1910-0097/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Detroit, Michigan | 1910 | sanborn03985_012 p97","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T12:31:21Z","modified":"2026-09-21T12:31:21Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114dm:g03985191006:03985_06_1910-0097/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114dm:g03985191006:03985_06_1910-0097","type":"ImageService3","width":1586,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1244.2,1949.0 -0.0,1949.0 -0.0,1105.5 233.6,1105.0 214.2,40.0 1396.6,25.2 1422.5,1295.6 1400.0,1443.5 1241.5,1571.3 1244.2,1949.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114dm:g03985191006:03985_06_1910-0097/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.10651363763637,42.33315625405478]}},{"type":"Feature","properties":{"resourceCoords":[1586.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.10309710369461,42.33447255482566]}},{"type":"Feature","properties":{"resourceCoords":[1586.0,1949.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.10092431519608,42.33134690203125]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1949.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.10434084913784,42.33003060126037]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114dm:g03985191006:03985_06_1910-0098/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Detroit, Michigan | 1910 | sanborn03985_012 p98","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T12:31:21Z","modified":"2026-09-21T12:31:21Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114dm:g03985191006:03985_06_1910-0098/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114dm:g03985191006:03985_06_1910-0098","type":"ImageService3","width":1636,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1636.0,1949.0 287.6,1949.0 286.4,18.2 1636.0,46.3 1636.0,1949.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114dm:g03985191006:03985_06_1910-0098/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.1055083451805,42.33830910710988]}},{"type":"Feature","properties":{"resourceCoords":[1636.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.10194853006153,42.33973354265723]}},{"type":"Feature","properties":{"resourceCoords":[1636.0,1949.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.0996689189731,42.33657660093267]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1949.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.10322873409206,42.335152165385324]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114dm:g03985191006:03985_06_1910-0099/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Detroit, Michigan | 1910 | sanborn03985_012 p99","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T12:31:21Z","modified":"2026-09-21T12:31:21Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114dm:g03985191006:03985_06_1910-0099/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114dm:g03985191006:03985_06_1910-0099","type":"ImageService3","width":1609,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1530.0,1702.3 1575.9,1767.4 333.9,1781.0 332.8,1172.9 81.3,1175.0 70.5,-0.0 1529.0,-0.0 1530.0,1702.3\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114dm:g03985191006:03985_06_1910-0099/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.10015175049195,42.33652921332179]}},{"type":"Feature","properties":{"resourceCoords":[1609.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.09832037684465,42.33393624960247]}},{"type":"Feature","properties":{"resourceCoords":[1609.0,1949.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.10253949171207,42.3322848064014]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1949.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.10437086535936,42.33487777012071]}}]}}]}