{"id":"https://data.mapsnap.org/runs/v2.0/iiif/chronoscope/sanborn03909_006.main.iiif.json","type":"AnnotationPage","@context":["http://www.w3.org/ns/anno.jsonld"],"label":"Ann Arbor, Michigan | 1925 | mapsnap generated fit (2026-10-18)","creator":{"type":"Software","name":"mapsnap","homepage":"https://mapsnap.org"},"rights":"https://opendatacommons.org/licenses/odbl/1-0/","metadata":[{"label":"generated","value":"2026-10-18"},{"label":"run","value":"corpus-v2"},{"label":"pages","value":"58"},{"label":"placed","value":"39"},{"label":"unplaced","value":"19"},{"label":"fit sources","value":"georef-snap 28, georef 11"},{"label":"key map","value":"georeferenced"},{"label":"split sheets","value":"10 sheet(s) cut into 28 panels"},{"label":"unplaced pages","value":"p1 (tier 1, 42.23783,-83.61759 +/-248m); p10__2 (tier 1, 42.28681,-83.74397 +/-123m); p14__2 (tier 4, 42.27838,-83.74538 +/-2099m); p14__3 (tier 4, 42.27838,-83.74538 +/-2099m); p15__1 (tier 4, 42.27838,-83.74538 +/-2099m); p15__2 (tier 1, 42.14946,-84.04043 +/-130m); p15__3 (tier 4, 42.27838,-83.74538 +/-2099m); p15__4 (tier 4, 42.27838,-83.74538 +/-2099m); p15__5 (tier 4, 42.27838,-83.74538 +/-2099m); p15__6 (tier 4, 42.27838,-83.74538 +/-2099m); p16__1 (tier 1, 42.28803,-83.76400 +/-100m); p21__2 (tier 1, 42.27468,-83.75290 +/-100m); p26__1 (tier 1, 42.27201,-83.74801 +/-102m); p31__1 (tier 2, 42.27000,-83.74740 +/-100m); p31__2 (tier 1, 42.26508,-83.74901 +/-155m); p31__3 (tier 1, 42.27103,-83.75473 +/-102m); p32__2 (tier 1, 42.26878,-83.74144 +/-136m); p32__3 (tier 1, 42.27168,-83.73881 +/-100m); p32__4 (tier 1, 42.26418,-83.74026 +/-106m)"}],"items":[{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114am:g039091925:03909_1925-0010__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Ann Arbor, Michigan | 1925 | sanborn03909_006 p10 [1]","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.92"},{"label":"confidence_provisional","value":"true"},{"label":"confidence_model","value":"corpus-v2"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"6512.0"},{"label":"split_canvas_h","value":"7708.0"}],"created":"2026-10-18T22:56:23Z","modified":"2026-10-18T22:56:23Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114am:g039091925:03909_1925-0010__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114am:g039091925:03909_1925-0010","type":"ImageService3","width":1628,"height":1927},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"812.6,1887.3 1094.6,1882.2 1090.1,1811.6 1566.2,1777.2 1580.8,928.1 1132.7,817.3 1059.3,817.3 1046.2,796.0 1002.0,785.0 729.3,324.7 725.3,49.2 663.5,40.8 213.8,378.4 304.3,419.2 303.8,521.9 234.4,599.4 171.6,683.0 98.6,819.0 78.8,904.3 63.4,1077.8 54.9,1883.8 550.4,1886.0 812.6,1887.3\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114am:g039091925:03909_1925-0010__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[810.0,1865.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-83.74176169449416,42.284736809392584]}},{"type":"Feature","properties":{"resourceCoords":[73.0,1865.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-83.7436143782746,42.284792938780974]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114am:g039091925:03909_1925-0011/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Ann Arbor, Michigan | 1925 | sanborn03909_006 p11","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.94"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T22:56:23Z","modified":"2026-10-18T22:56:23Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114am:g039091925:03909_1925-0011/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114am:g039091925:03909_1925-0011","type":"ImageService3","width":1628,"height":1927},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"93.6,937.1 45.0,1062.8 47.5,1152.8 47.9,1901.5 529.6,1898.0 784.4,1894.9 1387.5,1895.3 1392.0,1099.0 1406.5,927.5 1425.6,843.1 1497.1,708.4 1558.8,625.5 1627.0,548.6 1627.0,447.2 1537.4,407.3 1607.4,354.2 1419.0,354.5 600.8,1.0 464.0,1.0 375.9,218.8 359.2,261.4 93.6,937.1\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114am:g039091925:03909_1925-0011/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[537.0,2336.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-83.74587664651816,42.28400320783209]}},{"type":"Feature","properties":{"resourceCoords":[83.0,1593.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-83.74694508420018,42.28544059457228]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114am:g039091925:03909_1925-0012/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Ann Arbor, Michigan | 1925 | sanborn03909_006 p12","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.93"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T22:56:23Z","modified":"2026-10-18T22:56:23Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114am:g039091925:03909_1925-0012/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114am:g039091925:03909_1925-0012","type":"ImageService3","width":1628,"height":1927},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"354.9,1917.2 597.6,1917.5 1347.0,1908.0 1341.6,1148.7 1338.3,1057.5 1386.8,929.6 1627.0,306.2 1627.0,240.8 1094.7,50.2 1056.8,199.6 732.6,143.7 439.2,1.0 401.4,1.0 408.5,135.9 173.4,366.4 52.8,700.0 91.3,1294.4 50.4,1900.2 354.7,1903.9 354.9,1917.2\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114am:g039091925:03909_1925-0012/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[347.0,1137.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-83.7494761873443,42.28639064481351]}},{"type":"Feature","properties":{"resourceCoords":[838.0,1088.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-83.74823865103487,42.28643367804277]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114am:g039091925:03909_1925-0013__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Ann Arbor, Michigan | 1925 | sanborn03909_006 p13 [1]","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.82"},{"label":"confidence_provisional","value":"true"},{"label":"confidence_model","value":"corpus-v2"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"4193.2"},{"label":"split_canvas_w","value":"6512.0"},{"label":"split_canvas_h","value":"3514.8"}],"created":"2026-10-18T22:56:23Z","modified":"2026-10-18T22:56:23Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114am:g039091925:03909_1925-0013__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114am:g039091925:03909_1925-0013","type":"ImageService3","width":1628,"height":1927},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"139.4,1510.5 128.8,1557.9 126.5,1563.6 261.7,1564.3 1086.7,1926.0 1277.6,1926.0 1627.0,1664.0 1627.0,1646.8 1627.0,1640.3 962.4,1549.1 944.0,1535.9 958.1,1502.4 942.0,1459.8 796.9,1443.9 222.2,1163.8 218.7,1155.2 211.8,1151.8 139.4,1510.5\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114am:g039091925:03909_1925-0013__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[588.0,1707.1],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-83.74463908223699,42.28810293862007]}},{"type":"Feature","properties":{"resourceCoords":[142.0,1524.2],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-83.74574640274794,42.28847828444271]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114am:g039091925:03909_1925-0013__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Ann Arbor, Michigan | 1925 | sanborn03909_006 p13 [2]","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.82"},{"label":"confidence_provisional","value":"true"},{"label":"confidence_model","value":"corpus-v2"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"6512.0"},{"label":"split_canvas_h","value":"6150.4"}],"created":"2026-10-18T22:56:23Z","modified":"2026-10-18T22:56:23Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114am:g039091925:03909_1925-0013__2/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114am:g039091925:03909_1925-0013","type":"ImageService3","width":1628,"height":1927},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1371.8,1378.2 1371.7,1441.0 1395.5,1379.5 1412.3,1336.0 1503.9,1106.5 1514.1,1058.3 1585.5,685.2 1511.6,512.9 1546.9,196.4 1408.5,64.4 589.0,69.0 296.0,208.2 139.1,435.6 31.6,770.3 47.0,930.5 131.3,1006.8 136.7,1114.8 470.7,1278.1 796.9,1335.2 835.4,1184.9 1371.8,1378.2\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114am:g039091925:03909_1925-0013__2/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1415.0,1341.7],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-83.74603402269814,42.28799084002587]}},{"type":"Feature","properties":{"resourceCoords":[892.0,797.8],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-83.74726870541964,42.28904191323721]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114am:g039091925:03909_1925-0014__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Ann Arbor, Michigan | 1925 | sanborn03909_006 p14 [1]","metadata":[{"label":"streets","value":"8"},{"label":"intersections","value":"8"},{"label":"confidence","value":"0.63"},{"label":"confidence_provisional","value":"true"},{"label":"confidence_model","value":"corpus-v2"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"6512.0"},{"label":"split_canvas_h","value":"7708.0"}],"created":"2026-10-18T22:56:23Z","modified":"2026-10-18T22:56:23Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114am:g039091925:03909_1925-0014__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114am:g039091925:03909_1925-0014","type":"ImageService3","width":1628,"height":1927},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"793.0,1427.4 1581.0,1284.3 1604.0,407.4 1416.3,145.2 1202.8,206.8 1071.0,54.9 871.9,16.1 422.0,84.8 191.3,51.8 30.9,136.3 27.9,1768.3 93.8,1880.0 538.0,1851.5 675.5,1784.2 704.5,1696.5 781.9,1435.0 793.0,1427.4\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114am:g039091925:03909_1925-0014__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[380.0,1376.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-83.739542,42.2890419]}},{"type":"Feature","properties":{"resourceCoords":[-187.0,575.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-83.7394736,42.290889]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114am:g039091925:03909_1925-0016__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Ann Arbor, Michigan | 1925 | sanborn03909_006 p16 [2]","metadata":[{"label":"streets","value":"7"},{"label":"intersections","value":"9"},{"label":"confidence","value":"0.91"},{"label":"confidence_provisional","value":"true"},{"label":"confidence_model","value":"corpus-v2"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"6512.0"},{"label":"split_canvas_h","value":"7708.0"}],"created":"2026-10-18T22:56:23Z","modified":"2026-10-18T22:56:23Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114am:g039091925:03909_1925-0016__2/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114am:g039091925:03909_1925-0016","type":"ImageService3","width":1628,"height":1927},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1508.6,60.9 418.3,43.8 188.8,106.5 189.2,556.1 55.0,649.8 29.9,841.0 45.5,1261.3 516.4,1305.5 517.3,1311.1 518.0,1311.1 518.0,1315.1 604.1,1815.5 1164.7,1780.0 1259.3,1855.2 1509.5,1881.3 1530.1,1902.6 1562.7,1554.5 1550.6,1547.7 1589.8,879.0 1571.4,879.4 1536.0,880.0 1533.8,275.7 1535.7,1.0 1513.5,1.0 1508.6,60.9\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114am:g039091925:03909_1925-0016__2/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1536.0,880.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-83.755654,42.286217]}},{"type":"Feature","properties":{"resourceCoords":[547.0,287.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-83.7581241,42.287274]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114am:g039091925:03909_1925-0017/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Ann Arbor, Michigan | 1925 | sanborn03909_006 p17","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"9"},{"label":"confidence","value":"0.98"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T22:56:23Z","modified":"2026-10-18T22:56:23Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114am:g039091925:03909_1925-0017/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114am:g039091925:03909_1925-0017","type":"ImageService3","width":1628,"height":1927},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"113.6,359.9 69.7,45.5 636.2,123.8 1185.1,19.4 1569.8,86.4 1562.8,1805.9 1037.7,1812.0 673.0,1817.9 112.0,1824.0 76.9,1824.5 78.7,1227.0 82.5,954.4 60.6,954.2 113.6,359.9\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114am:g039091925:03909_1925-0017/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1358.0,1227.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-83.752482,42.287376]}},{"type":"Feature","properties":{"resourceCoords":[730.0,341.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-83.754103,42.28899]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114am:g039091925:03909_1925-0018/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Ann Arbor, Michigan | 1925 | sanborn03909_006 p18","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"7"},{"label":"confidence","value":"0.97"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T22:56:23Z","modified":"2026-10-18T22:56:23Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114am:g039091925:03909_1925-0018/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114am:g039091925:03909_1925-0018","type":"ImageService3","width":1628,"height":1927},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"863.4,1811.6 280.3,1756.0 256.8,1579.7 143.3,1473.7 102.0,1172.5 58.5,1126.1 96.6,781.5 84.7,774.5 134.8,112.1 679.4,111.7 1045.3,109.5 1572.1,108.8 1562.9,752.8 1358.5,1114.7 1354.4,1442.6 1349.7,1488.7 1152.5,1376.8 1032.3,1685.6 844.1,1895.5 863.4,1811.6\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114am:g039091925:03909_1925-0018/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[729.0,607.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-83.753999,42.2853431]}},{"type":"Feature","properties":{"resourceCoords":[1365.0,607.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-83.752413,42.2853814]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114am:g039091925:03909_1925-0019__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Ann Arbor, Michigan | 1925 | sanborn03909_006 p19 [1]","metadata":[{"label":"streets","value":"13"},{"label":"intersections","value":"16"},{"label":"confidence","value":"0.97"},{"label":"confidence_provisional","value":"true"},{"label":"confidence_model","value":"corpus-v2"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"6512.0"},{"label":"split_canvas_h","value":"7708.0"}],"created":"2026-10-18T22:56:23Z","modified":"2026-10-18T22:56:23Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114am:g039091925:03909_1925-0019__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114am:g039091925:03909_1925-0019","type":"ImageService3","width":1628,"height":1927},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"26.9,1221.7 49.6,1220.7 88.2,1270.2 118.2,1913.0 202.3,1908.1 338.9,1919.8 339.2,1926.0 377.9,1926.0 466.8,1926.0 580.9,1889.5 823.3,1811.9 1069.4,1736.1 1324.7,1820.3 1327.0,1849.0 1570.7,1836.6 1555.3,1604.2 1555.5,1581.3 1530.7,1261.7 1530.7,1261.5 1524.7,1121.5 1517.9,1097.5 1499.9,865.0 1472.7,864.3 1465.9,864.1 1466.0,839.5 1466.0,815.4 1508.9,675.4 1487.4,621.4 1342.9,623.8 1238.7,664.6 643.7,663.5 643.0,662.5 640.6,662.5 640.4,658.6 600.9,599.5 591.5,369.9 496.3,296.2 475.0,296.2 474.5,279.4 448.2,259.0 429.7,73.6 120.5,100.9 84.8,208.2 92.6,576.5 61.0,785.9 32.2,794.4 29.6,868.5 45.0,1120.0 27.1,1120.0 26.9,1221.7\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114am:g039091925:03909_1925-0019__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1327.0,1849.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-83.7548076,42.2779965]}},{"type":"Feature","properties":{"resourceCoords":[45.0,1120.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-83.7610619,42.2808849]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114am:g039091925:03909_1925-0019__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Ann Arbor, Michigan | 1925 | sanborn03909_006 p19 [2]","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.84"},{"label":"confidence_provisional","value":"true"},{"label":"confidence_model","value":"corpus-v2"},{"label":"split_canvas_x","value":"1867.2"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"4644.8"},{"label":"split_canvas_h","value":"2650.0"}],"created":"2026-10-18T22:56:23Z","modified":"2026-10-18T22:56:23Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114am:g039091925:03909_1925-0019__2/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114am:g039091925:03909_1925-0019","type":"ImageService3","width":1628,"height":1927},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1591.1,390.6 1591.6,287.8 1609.7,287.9 1593.8,54.5 1475.2,36.9 737.5,32.1 505.7,44.8 488.7,82.3 507.0,270.0 622.3,295.1 623.1,296.2 624.5,296.2 624.6,298.2 645.6,327.4 706.3,657.4 1248.3,658.7 1319.1,632.2 1352.6,619.5 1369.5,619.5 1455.9,591.6 1494.6,446.1 1544.2,392.5 1591.1,390.6\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114am:g039091925:03909_1925-0019__2/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[487.8,74.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-83.76656850112319,42.28182391309394]}},{"type":"Feature","properties":{"resourceCoords":[934.5,290.2],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-83.76440085453095,42.28097132875924]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114am:g039091925:03909_1925-0002/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Ann Arbor, Michigan | 1925 | sanborn03909_006 p2","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.89"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T22:56:23Z","modified":"2026-10-18T22:56:23Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114am:g039091925:03909_1925-0002/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114am:g039091925:03909_1925-0002","type":"ImageService3","width":1628,"height":1927},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1621.8,1879.0 1615.8,1394.2 1618.2,47.4 1618.1,34.4 1310.1,28.7 745.6,60.4 705.4,17.4 687.8,17.1 528.3,357.9 548.7,676.1 547.5,721.1 348.0,627.4 254.4,935.7 87.5,1153.2 50.4,1399.8 40.6,1400.0 82.8,1505.0 1.0,1774.7 1.0,1872.9 13.2,1873.2 130.7,1875.8 547.7,1885.0 935.1,1883.3 1185.3,1884.3 1621.8,1879.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114am:g039091925:03909_1925-0002/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1151.0,1396.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-83.7509083302195,42.28242399207704]}},{"type":"Feature","properties":{"resourceCoords":[-22.0,1868.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-83.75396808571709,42.28162644473641]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114am:g039091925:03909_1925-0020/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Ann Arbor, Michigan | 1925 | sanborn03909_006 p20","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.85"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T22:56:23Z","modified":"2026-10-18T22:56:23Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114am:g039091925:03909_1925-0020/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114am:g039091925:03909_1925-0020","type":"ImageService3","width":1628,"height":1927},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1574.3,1556.0 1530.7,1556.0 1531.8,1056.0 1526.4,701.8 1520.9,7.2 1290.3,66.4 1037.1,51.5 1037.1,39.3 774.4,1.0 599.9,1.0 599.6,18.6 68.8,96.3 66.4,1872.9 762.1,1899.7 1169.5,1827.2 1291.6,1894.6 1501.9,1898.3 1582.2,1863.5 1574.3,1556.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114am:g039091925:03909_1925-0020/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[303.0,1249.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-83.7615496704079,42.275609912412854]}},{"type":"Feature","properties":{"resourceCoords":[1529.0,1286.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-83.75846577095199,42.27558145601348]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114am:g039091925:03909_1925-0021__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Ann Arbor, Michigan | 1925 | sanborn03909_006 p21 [1]","metadata":[{"label":"streets","value":"5"},{"label":"intersections","value":"5"},{"label":"confidence","value":"0.96"},{"label":"confidence_provisional","value":"true"},{"label":"confidence_model","value":"corpus-v2"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"6512.0"},{"label":"split_canvas_h","value":"7708.0"}],"created":"2026-10-18T22:56:23Z","modified":"2026-10-18T22:56:23Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114am:g039091925:03909_1925-0021__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114am:g039091925:03909_1925-0021","type":"ImageService3","width":1628,"height":1927},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"68.0,360.0 73.2,1062.3 78.5,1420.4 77.0,1926.0 96.5,1926.0 121.2,1926.0 120.5,1899.5 1543.2,1888.7 1541.6,1926.0 1563.7,1926.0 1563.5,1414.2 1570.1,367.5 1568.8,309.6 1066.7,110.3 563.8,233.1 68.0,360.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114am:g039091925:03909_1925-0021__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1072.0,1461.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-83.7559967,42.275968]}},{"type":"Feature","properties":{"resourceCoords":[68.0,360.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-83.758543,42.27796]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114am:g039091925:03909_1925-0022/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Ann Arbor, Michigan | 1925 | sanborn03909_006 p22","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.99"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T22:56:23Z","modified":"2026-10-18T22:56:23Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114am:g039091925:03909_1925-0022/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114am:g039091925:03909_1925-0022","type":"ImageService3","width":1628,"height":1927},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"582.5,37.1 625.4,38.0 1527.0,33.1 1572.8,41.6 1567.8,1031.7 1562.3,1514.0 1562.2,1870.7 1072.5,1841.0 1072.5,1835.3 580.6,1836.5 580.6,1835.4 98.0,1888.0 57.2,1833.7 67.7,1587.2 89.7,1586.2 88.8,1076.4 94.0,33.6 582.5,37.1\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114am:g039091925:03909_1925-0022/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[99.0,52.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-83.75479434565327,42.27796280517296]}},{"type":"Feature","properties":{"resourceCoords":[1560.0,52.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-83.75114732223128,42.27800828077245]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114am:g039091925:03909_1925-0023/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Ann Arbor, Michigan | 1925 | sanborn03909_006 p23","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.94"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T22:56:23Z","modified":"2026-10-18T22:56:23Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114am:g039091925:03909_1925-0023/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114am:g039091925:03909_1925-0023","type":"ImageService3","width":1628,"height":1927},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1085.1,1686.7 586.4,1703.8 586.5,1719.8 195.7,1796.8 178.8,1520.2 154.5,1035.2 98.4,40.3 253.1,48.8 575.3,45.9 1079.2,40.8 1540.2,45.8 1577.8,45.6 1586.1,1761.2 1085.0,1671.0 1085.0,1683.0 1085.1,1686.7\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114am:g039091925:03909_1925-0023/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[585.0,1016.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-83.75001768850399,42.27619921677358]}},{"type":"Feature","properties":{"resourceCoords":[585.0,68.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-83.7499130737877,42.277937378045614]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114am:g039091925:03909_1925-0024/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Ann Arbor, Michigan | 1925 | sanborn03909_006 p24","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.90"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T22:56:23Z","modified":"2026-10-18T22:56:23Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114am:g039091925:03909_1925-0024/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114am:g039091925:03909_1925-0024","type":"ImageService3","width":1628,"height":1927},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1490.4,28.4 1505.5,1296.9 1513.3,1829.2 1512.3,1897.5 175.0,1862.8 155.6,47.1 161.8,47.0 655.9,38.3 1490.4,28.4\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114am:g039091925:03909_1925-0024/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1075.0,62.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-83.74517572146472,42.27778512621157]}},{"type":"Feature","properties":{"resourceCoords":[658.0,62.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-83.7462082798742,42.27782360898448]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114am:g039091925:03909_1925-0025/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Ann Arbor, Michigan | 1925 | sanborn03909_006 p25","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.91"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T22:56:23Z","modified":"2026-10-18T22:56:23Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114am:g039091925:03909_1925-0025/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114am:g039091925:03909_1925-0025","type":"ImageService3","width":1628,"height":1927},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1538.5,1561.2 1526.4,1561.0 1523.4,1914.8 1523.2,1926.0 554.6,1920.1 554.5,1926.0 141.0,1926.0 129.1,1910.6 89.0,1858.0 95.1,1777.8 119.0,1257.3 179.5,17.2 546.4,14.9 986.8,14.7 1029.3,14.6 1511.4,12.7 1512.0,84.6 1535.7,84.4 1538.5,1561.2\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114am:g039091925:03909_1925-0025/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[543.0,870.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-83.74319986465824,42.27621718443153]}},{"type":"Feature","properties":{"resourceCoords":[1030.0,870.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-83.7419662784242,42.27622662365169]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114am:g039091925:03909_1925-0026__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Ann Arbor, Michigan | 1925 | sanborn03909_006 p26 [2]","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"4"},{"label":"confidence","value":"0.89"},{"label":"confidence_provisional","value":"true"},{"label":"confidence_model","value":"corpus-v2"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"6512.0"},{"label":"split_canvas_h","value":"7708.0"}],"created":"2026-10-18T22:56:23Z","modified":"2026-10-18T22:56:23Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114am:g039091925:03909_1925-0026__2/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114am:g039091925:03909_1925-0026","type":"ImageService3","width":1628,"height":1927},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"126.8,149.6 135.8,161.9 52.3,298.0 23.6,566.4 48.1,1316.1 788.6,1371.4 790.0,1375.6 793.6,1375.6 793.5,1385.6 910.4,1730.9 1155.3,1824.5 1427.8,1845.1 1443.8,1779.7 1443.5,1574.8 1449.0,1157.1 1575.5,1152.2 1582.8,371.4 1584.8,145.1 1097.5,111.3 1097.5,105.7 607.8,102.5 607.8,101.5 126.8,149.6\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114am:g039091925:03909_1925-0026__2/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[602.0,469.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-83.753508,42.274002]}},{"type":"Feature","properties":{"resourceCoords":[117.0,469.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-83.7547237,42.273979]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114am:g039091925:03909_1925-0027/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Ann Arbor, Michigan | 1925 | sanborn03909_006 p27","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.96"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T22:56:23Z","modified":"2026-10-18T22:56:23Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114am:g039091925:03909_1925-0027/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114am:g039091925:03909_1925-0027","type":"ImageService3","width":1628,"height":1927},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"727.5,1925.2 774.0,1722.5 644.9,1728.8 104.4,1766.4 85.5,1349.0 211.7,1336.8 173.5,556.5 158.4,249.6 546.1,178.0 546.2,162.2 1039.8,151.1 1039.8,147.4 1039.9,135.6 1534.8,230.7 1532.3,578.0 1501.8,580.2 1479.2,1511.0 1484.7,1510.8 1503.6,1879.7 727.5,1925.2\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114am:g039091925:03909_1925-0027/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1005.0,602.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-83.74897665799224,42.274094963898925]}},{"type":"Feature","properties":{"resourceCoords":[797.0,1518.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-83.74957258874976,42.272409648870585]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114am:g039091925:03909_1925-0028/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Ann Arbor, Michigan | 1925 | sanborn03909_006 p28","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.90"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T22:56:23Z","modified":"2026-10-18T22:56:23Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114am:g039091925:03909_1925-0028/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114am:g039091925:03909_1925-0028","type":"ImageService3","width":1628,"height":1927},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"123.7,1230.2 118.3,1230.6 126.9,302.7 157.3,300.1 155.4,51.9 1473.7,89.8 1473.4,103.4 1516.8,154.0 1549.9,192.0 1472.4,198.0 1476.8,555.5 1495.1,1229.8 1507.0,1528.5 1527.9,1866.8 1531.6,1926.0 1511.3,1926.0 1507.8,1877.7 1369.8,1877.0 1249.5,1788.3 680.9,1888.0 323.6,1854.2 318.0,1926.0 272.8,1789.6 262.2,1588.1 148.0,1597.5 123.7,1230.2\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114am:g039091925:03909_1925-0028/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1492.0,1035.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-83.74438860655951,42.272623376217034]}},{"type":"Feature","properties":{"resourceCoords":[654.0,1546.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-83.74655481309577,42.271747575876454]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114am:g039091925:03909_1925-0029/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Ann Arbor, Michigan | 1925 | sanborn03909_006 p29","metadata":[{"label":"streets","value":"11"},{"label":"intersections","value":"17"},{"label":"confidence","value":"0.98"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T22:56:23Z","modified":"2026-10-18T22:56:23Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114am:g039091925:03909_1925-0029/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114am:g039091925:03909_1925-0029","type":"ImageService3","width":1628,"height":1927},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"43.2,1718.5 44.7,1377.6 52.5,1077.2 78.9,399.4 98.2,40.5 176.4,39.6 158.4,16.0 576.4,18.4 576.5,12.4 1557.4,26.4 1556.8,47.5 1556.2,1266.2 1555.3,1309.9 1545.8,1823.8 1488.1,1750.0 1069.7,1755.4 1030.4,1781.7 912.0,1805.4 42.7,1827.2 43.2,1718.5\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114am:g039091925:03909_1925-0029/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[553.0,1815.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-83.7431183,42.2709129]}},{"type":"Feature","properties":{"resourceCoords":[1557.0,57.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-83.740689,42.2742004]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114am:g039091925:03909_1925-0003/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Ann Arbor, Michigan | 1925 | sanborn03909_006 p3","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.96"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T22:56:23Z","modified":"2026-10-18T22:56:23Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114am:g039091925:03909_1925-0003/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114am:g039091925:03909_1925-0003","type":"ImageService3","width":1628,"height":1927},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"70.9,516.5 57.5,469.2 20.4,10.8 85.7,12.3 507.8,21.4 899.9,19.7 1153.2,20.6 1595.1,15.0 1596.5,513.3 1608.2,1001.1 1609.8,1568.6 1606.5,1877.5 1291.2,1880.1 1139.8,1871.8 1094.4,1866.2 208.2,1925.0 184.1,1926.0 165.9,1926.0 134.2,1468.5 134.4,1423.4 83.5,792.6 70.9,516.5\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114am:g039091925:03909_1925-0003/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[608.0,1282.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-83.75239668836258,42.279176830423836]}},{"type":"Feature","properties":{"resourceCoords":[1128.0,1864.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-83.75114494508726,42.278043471146596]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114am:g039091925:03909_1925-0030/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Ann Arbor, Michigan | 1925 | sanborn03909_006 p30","metadata":[{"label":"streets","value":"11"},{"label":"intersections","value":"12"},{"label":"confidence","value":"0.97"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T22:56:23Z","modified":"2026-10-18T22:56:23Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114am:g039091925:03909_1925-0030/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114am:g039091925:03909_1925-0030","type":"ImageService3","width":1628,"height":1927},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"47.3,243.1 48.8,40.0 585.6,38.7 713.7,41.0 654.3,238.3 1424.6,244.9 1538.5,244.8 1532.6,445.4 1573.7,614.7 1523.5,1874.5 73.6,1882.2 25.4,1815.6 48.6,309.2 30.9,307.8 47.3,243.1\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114am:g039091925:03909_1925-0030/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1060.0,1463.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-83.7486475,42.2693943]}},{"type":"Feature","properties":{"resourceCoords":[1521.0,960.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-83.747526,42.270365]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114am:g039091925:03909_1925-0032__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Ann Arbor, Michigan | 1925 | sanborn03909_006 p32 [1]","metadata":[{"label":"streets","value":"7"},{"label":"intersections","value":"10"},{"label":"confidence","value":"0.94"},{"label":"confidence_provisional","value":"true"},{"label":"confidence_model","value":"corpus-v2"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"6512.0"},{"label":"split_canvas_h","value":"3786.0"}],"created":"2026-10-18T22:56:23Z","modified":"2026-10-18T22:56:23Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114am:g039091925:03909_1925-0032__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114am:g039091925:03909_1925-0032","type":"ImageService3","width":1628,"height":1927},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"42.2,180.4 43.5,722.9 119.8,907.4 382.2,942.4 800.0,920.4 800.0,917.6 800.0,917.1 862.2,917.1 1553.0,880.7 1553.0,899.4 1572.5,899.3 1569.0,726.4 1569.0,232.1 1511.4,157.9 1091.8,161.8 1052.5,188.0 933.6,211.3 62.2,230.1 62.6,180.8 42.2,180.4\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114am:g039091925:03909_1925-0032__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[570.0,906.5],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-83.7430897,42.2696457]}},{"type":"Feature","properties":{"resourceCoords":[1569.0,232.1],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-83.7406351,42.2709307]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114am:g039091925:03909_1925-0033/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Ann Arbor, Michigan | 1925 | sanborn03909_006 p33","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.75"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T22:56:23Z","modified":"2026-10-18T22:56:23Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114am:g039091925:03909_1925-0033/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114am:g039091925:03909_1925-0033","type":"ImageService3","width":1628,"height":1927},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1048.5,1860.9 708.1,1888.3 741.9,1926.0 711.4,1926.0 626.7,1830.8 625.5,1829.7 48.6,1739.0 65.3,1265.5 63.9,1265.5 44.9,1016.2 72.5,1015.9 71.7,768.8 67.8,518.2 66.0,249.5 66.8,126.3 65.0,57.1 99.2,75.5 446.9,33.0 1011.1,25.9 1150.2,62.7 1588.3,81.7 1587.1,1799.6 1627.0,1799.6 1627.0,1835.5 1551.3,1895.9 1552.1,1854.9 1081.9,1845.4 1081.1,1688.2 1052.2,1688.0 1051.2,1737.2 1048.5,1860.9\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114am:g039091925:03909_1925-0033/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[645.0,524.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-83.73567495403758,42.283118754218854]}},{"type":"Feature","properties":{"resourceCoords":[76.0,524.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-83.73848922448569,42.2830636263923]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114am:g039091925:03909_1925-0034/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Ann Arbor, Michigan | 1925 | sanborn03909_006 p34","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.59"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T22:56:23Z","modified":"2026-10-18T22:56:23Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114am:g039091925:03909_1925-0034/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114am:g039091925:03909_1925-0034","type":"ImageService3","width":1628,"height":1927},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"45.9,1844.0 48.5,1226.0 49.0,1209.5 52.7,1027.8 58.9,1028.0 67.6,160.6 498.8,26.9 1105.4,119.7 1106.6,120.8 1192.0,216.0 1222.6,215.8 1188.6,178.2 1530.0,149.3 1529.8,158.8 1530.2,507.3 1539.3,578.4 1554.6,623.7 1575.4,660.8 1581.8,1354.8 1577.2,1793.7 1578.0,1824.6 1551.5,1834.2 1510.9,1826.5 1266.7,1833.1 1040.7,1840.6 541.1,1852.3 292.2,1861.5 176.4,1862.7 45.3,1866.2 45.9,1844.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114am:g039091925:03909_1925-0034/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[547.0,1481.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-83.73820413839482,42.27332796130277]}},{"type":"Feature","properties":{"resourceCoords":[1575.0,1029.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-83.73318559720765,42.27506022782603]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114am:g039091925:03909_1925-0035/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Ann Arbor, Michigan | 1925 | sanborn03909_006 p35","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.87"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T22:56:23Z","modified":"2026-10-18T22:56:23Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114am:g039091925:03909_1925-0035/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114am:g039091925:03909_1925-0035","type":"ImageService3","width":1628,"height":1927},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"167.9,679.3 176.4,1366.8 176.4,1367.7 173.1,1803.0 173.9,1833.6 335.1,1831.0 589.3,1823.7 650.6,1815.4 798.4,1790.1 821.8,1788.1 1030.5,1781.6 1160.2,1781.2 1188.0,1778.0 1201.3,1792.6 1586.8,1726.8 1587.8,136.1 1222.5,63.0 935.6,105.2 697.5,106.9 696.8,142.7 621.9,203.2 622.4,162.4 154.4,156.4 152.5,1.0 123.7,1.0 123.1,49.0 121.2,181.6 122.7,527.3 131.9,597.8 147.2,642.6 167.9,679.3\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114am:g039091925:03909_1925-0035/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[802.0,1053.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-83.73003619167183,42.27507382865726]}},{"type":"Feature","properties":{"resourceCoords":[1090.0,1053.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-83.72860451839719,42.275094178024254]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114am:g039091925:03909_1925-0036/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Ann Arbor, Michigan | 1925 | sanborn03909_006 p36","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.97"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T22:56:23Z","modified":"2026-10-18T22:56:23Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114am:g039091925:03909_1925-0036/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114am:g039091925:03909_1925-0036","type":"ImageService3","width":1628,"height":1927},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"31.6,658.0 41.4,658.0 39.7,570.6 39.8,321.0 45.7,60.8 176.7,57.3 292.3,56.1 540.9,47.1 1039.8,35.6 1265.5,28.3 1509.4,21.9 1549.9,29.5 1545.4,516.8 1545.1,700.1 1543.5,854.2 1539.7,1433.2 1535.2,1461.3 1574.1,1450.2 1617.2,1746.2 1618.7,1746.2 1627.0,1745.6 1627.0,1874.1 829.2,1881.1 828.8,1853.4 606.5,1714.1 540.0,1715.5 283.0,1717.8 35.5,1723.6 34.4,1926.0 30.1,1926.0 29.2,1926.0 31.6,658.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114am:g039091925:03909_1925-0036/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[289.0,1230.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-83.73930291681052,42.26763088450308]}},{"type":"Feature","properties":{"resourceCoords":[1545.0,857.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-83.73314463684416,42.26909788877823]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114am:g039091925:03909_1925-0037/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Ann Arbor, Michigan | 1925 | sanborn03909_006 p37","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.92"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T22:56:23Z","modified":"2026-10-18T22:56:23Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114am:g039091925:03909_1925-0037/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114am:g039091925:03909_1925-0037","type":"ImageService3","width":1628,"height":1927},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1589.1,1872.7 1537.2,1890.7 1231.3,1840.1 921.5,1832.1 378.4,1630.2 374.9,1614.3 352.5,1614.8 160.0,1618.4 138.6,1618.6 138.7,1638.5 139.7,1814.7 140.2,1911.6 117.8,1913.4 116.4,1913.4 69.1,1618.1 30.4,1629.9 34.5,1601.7 30.1,1022.9 29.5,869.0 27.2,685.7 24.9,198.6 51.2,188.7 213.3,184.3 469.1,174.3 530.7,165.3 679.2,138.2 702.7,136.0 912.6,127.2 1043.2,125.4 1071.2,122.0 1084.7,136.5 1472.0,66.2 1473.9,251.7 1480.8,303.4 1587.6,333.9 1587.8,743.5 1627.0,743.8 1627.0,853.1 1588.8,1007.4 1580.5,1047.3 1575.8,1151.3 1576.7,1295.6 1577.4,1673.8 1594.2,1674.0 1589.1,1872.7\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114am:g039091925:03909_1925-0037/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1561.0,1579.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-83.72556634644376,42.267123661626655]}},{"type":"Feature","properties":{"resourceCoords":[39.0,1293.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-83.73309681772115,42.268121104567136]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114am:g039091925:03909_1925-0038/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Ann Arbor, Michigan | 1925 | sanborn03909_006 p38","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.79"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T22:56:23Z","modified":"2026-10-18T22:56:23Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114am:g039091925:03909_1925-0038/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114am:g039091925:03909_1925-0038","type":"ImageService3","width":1628,"height":1927},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"666.4,101.8 997.6,23.6 1501.0,52.8 1558.0,105.6 1592.0,1714.2 1523.1,1821.9 1338.4,1889.6 243.4,1843.4 66.7,1889.5 65.0,1926.0 31.8,1926.0 45.5,1177.3 49.6,891.8 63.0,686.2 81.1,607.4 162.8,303.7 167.2,87.4 666.4,101.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114am:g039091925:03909_1925-0038/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[694.0,1274.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-83.72387633941885,42.268016292276016]}},{"type":"Feature","properties":{"resourceCoords":[227.0,68.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-83.7251280916498,42.27021767366976]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114am:g039091925:03909_1925-0039/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Ann Arbor, Michigan | 1925 | sanborn03909_006 p39","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.94"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T22:56:23Z","modified":"2026-10-18T22:56:23Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114am:g039091925:03909_1925-0039/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114am:g039091925:03909_1925-0039","type":"ImageService3","width":1628,"height":1927},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1594.5,417.5 1581.4,1883.6 1119.5,1874.9 1157.0,1831.6 1091.2,1823.0 780.0,1889.2 747.9,1890.1 85.3,1884.6 49.0,1834.2 42.5,1802.3 39.8,512.3 50.0,512.3 50.7,110.5 542.2,97.1 1052.5,90.6 1184.5,87.2 1627.0,362.1 1627.0,417.1 1594.5,417.5\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114am:g039091925:03909_1925-0039/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[544.0,999.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-83.73923057091787,42.2641889345625]}},{"type":"Feature","properties":{"resourceCoords":[544.0,102.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-83.73927282166527,42.26583931684271]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114am:g039091925:03909_1925-0004/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Ann Arbor, Michigan | 1925 | sanborn03909_006 p4","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.99"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T22:56:23Z","modified":"2026-10-18T22:56:23Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114am:g039091925:03909_1925-0004/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114am:g039091925:03909_1925-0004","type":"ImageService3","width":1628,"height":1927},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"90.0,1410.8 100.0,47.9 340.4,51.6 1082.6,52.7 1566.4,52.8 1567.0,218.7 1580.0,306.7 1579.0,544.3 1564.5,630.1 1562.5,1370.5 1566.0,1908.9 1281.3,1909.4 589.5,1905.5 93.5,1901.5 90.0,1410.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114am:g039091925:03909_1925-0004/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[596.0,931.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-83.7483883776771,42.28325175683975]}},{"type":"Feature","properties":{"resourceCoords":[1563.0,932.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-83.74593863788343,42.283180361567815]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114am:g039091925:03909_1925-0040/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Ann Arbor, Michigan | 1925 | sanborn03909_006 p40","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.96"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T22:56:23Z","modified":"2026-10-18T22:56:23Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114am:g039091925:03909_1925-0040/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114am:g039091925:03909_1925-0040","type":"ImageService3","width":1628,"height":1927},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"53.1,633.8 80.9,631.8 80.5,440.9 80.3,338.3 79.8,93.8 79.8,54.6 121.9,54.3 413.7,49.9 501.2,48.5 545.4,47.8 552.3,79.2 1620.7,480.7 1387.8,473.8 1369.1,815.3 1505.9,926.0 1510.8,1122.4 1596.7,1232.5 1567.0,1871.9 47.1,1882.4 66.6,886.6 57.8,886.8 53.1,633.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114am:g039091925:03909_1925-0040/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1203.0,1872.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-83.72971904201357,42.26358720552332]}},{"type":"Feature","properties":{"resourceCoords":[85.0,1402.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-83.73253661352176,42.2644339398738]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114am:g039091925:03909_1925-0005/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Ann Arbor, Michigan | 1925 | sanborn03909_006 p5","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.99"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T22:56:23Z","modified":"2026-10-18T22:56:23Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114am:g039091925:03909_1925-0005/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114am:g039091925:03909_1925-0005","type":"ImageService3","width":1628,"height":1927},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"86.1,1592.9 85.3,1021.7 74.3,530.8 73.7,29.2 573.0,31.2 1269.5,32.3 1556.0,30.6 1559.5,703.1 1558.3,1135.7 1562.2,1569.7 1562.2,1900.7 1075.8,1905.4 1032.6,1905.6 578.6,1899.7 82.2,1903.8 86.1,1592.9\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114am:g039091925:03909_1925-0005/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1074.0,1020.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-83.74734475940652,42.279545353335095]}},{"type":"Feature","properties":{"resourceCoords":[1554.0,533.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-83.7460848867168,42.28041396901951]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114am:g039091925:03909_1925-0006/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Ann Arbor, Michigan | 1925 | sanborn03909_006 p6","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.94"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T22:56:23Z","modified":"2026-10-18T22:56:23Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114am:g039091925:03909_1925-0006/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114am:g039091925:03909_1925-0006","type":"ImageService3","width":1628,"height":1927},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"200.6,25.6 630.0,26.1 835.6,30.4 1113.3,32.2 1569.0,34.0 1552.7,520.5 1563.9,520.6 1570.5,1010.0 1609.1,1010.3 1627.0,1444.7 1627.0,1827.0 1607.8,1827.9 1172.3,1847.9 809.6,1866.5 1.1,1863.6 3.5,1537.9 3.0,1110.7 7.5,685.0 9.2,23.1 200.6,25.6\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114am:g039091925:03909_1925-0006/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[816.0,1000.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-83.7440494278003,42.27944762894827]}},{"type":"Feature","properties":{"resourceCoords":[46.0,507.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-83.74597485956733,42.2804311914362]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114am:g039091925:03909_1925-0007/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Ann Arbor, Michigan | 1925 | sanborn03909_006 p7","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.93"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T22:56:23Z","modified":"2026-10-18T22:56:23Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114am:g039091925:03909_1925-0007/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114am:g039091925:03909_1925-0007","type":"ImageService3","width":1628,"height":1927},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"154.5,16.5 593.9,40.5 734.6,39.8 1200.4,28.2 1513.2,24.6 1523.9,24.4 1565.1,517.3 1567.7,517.3 1541.4,1453.8 1487.2,1445.7 638.0,1711.5 636.4,1926.0 612.4,1926.0 612.4,1853.2 124.3,1850.7 100.9,1850.4 122.1,1459.9 128.0,1015.1 88.5,1012.6 108.9,512.4 97.5,511.8 141.2,15.7 154.5,16.5\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114am:g039091925:03909_1925-0007/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[601.0,57.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-83.74088547454127,42.2811660136618]}},{"type":"Feature","properties":{"resourceCoords":[1573.0,57.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-83.73845439557306,42.28120105296459]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114am:g039091925:03909_1925-0008/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Ann Arbor, Michigan | 1925 | sanborn03909_006 p8","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.97"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T22:56:23Z","modified":"2026-10-18T22:56:23Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114am:g039091925:03909_1925-0008/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114am:g039091925:03909_1925-0008","type":"ImageService3","width":1628,"height":1927},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"872.5,1902.2 664.6,1898.8 230.4,1900.3 36.9,1898.8 32.8,1359.5 33.9,618.0 48.3,532.0 49.1,294.0 36.0,205.9 35.1,39.7 291.5,38.1 898.2,42.2 1390.8,45.2 1497.1,45.9 1484.9,499.8 1475.7,499.8 1510.6,964.2 1499.9,964.2 1506.0,1345.0 1502.0,1345.0 1518.9,1902.4 1153.2,1902.7 872.5,1902.2\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114am:g039091925:03909_1925-0008/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[62.0,1406.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-83.74591319153316,42.28226942454144]}},{"type":"Feature","properties":{"resourceCoords":[894.0,1872.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-83.74385549482174,42.281335893719636]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114am:g039091925:03909_1925-0009/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Ann Arbor, Michigan | 1925 | sanborn03909_006 p9","metadata":[{"label":"streets","value":"9"},{"label":"intersections","value":"15"},{"label":"confidence","value":"0.98"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T22:56:23Z","modified":"2026-10-18T22:56:23Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114am:g039091925:03909_1925-0009/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114am:g039091925:03909_1925-0009","type":"ImageService3","width":1628,"height":1927},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"175.2,1874.5 602.2,1902.8 739.2,1903.8 1192.5,1897.8 1496.8,1897.8 1560.3,1897.4 1561.0,1422.0 1555.7,939.8 1554.7,422.7 1557.2,185.7 1554.4,52.7 1508.5,27.9 1068.9,21.4 1070.8,1.0 603.9,1.0 603.3,69.3 327.8,54.3 176.3,42.7 132.8,487.5 123.8,486.9 125.8,945.4 115.3,944.6 94.8,1318.9 91.0,1318.6 68.8,1867.1 175.2,1874.5\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114am:g039091925:03909_1925-0009/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1084.0,1422.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-83.7397044,42.2821392]}},{"type":"Feature","properties":{"resourceCoords":[1561.0,1422.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-83.7384784,42.2821674]}}]}}]}