{"id":"https://data.mapsnap.org/runs/v2.0/iiif/chronoscope/sanborn04181_002.main.iiif.json","type":"AnnotationPage","@context":["http://www.w3.org/ns/anno.jsonld"],"label":"Saint Clair Shores, Michigan | 1945 | 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":"29"},{"label":"placed","value":"14"},{"label":"unplaced","value":"15"},{"label":"fit sources","value":"georef-snap 10, georef 4"},{"label":"key map","value":"georeferenced"},{"label":"split sheets","value":"8 sheet(s) cut into 28 panels"},{"label":"unplaced pages","value":"p2__2 (tier 2, 42.46841,-82.90357 +/-100m); p2__4 (tier 1, 42.45387,-82.90349 +/-148m); p2__5 (tier 1, 42.45776,-82.90215 +/-100m); p2__6 (tier 2, 42.46841,-82.90357 +/-100m); p2__7 (tier 2, 42.46841,-82.90357 +/-100m); p3__2 (tier 2, 42.46884,-82.90125 +/-344m); p5__1 (tier 1, 42.47036,-82.88718 +/-401m); p5__3 (tier 2, 42.46905,-82.88970 +/-100m); p5__4 (tier 2, 42.46905,-82.88970 +/-100m); p5__5 (tier 1, 42.46883,-82.88433 +/-262m); p5__6 (tier 2, 42.46905,-82.88970 +/-100m); p6__2 (tier 1, 42.50286,-82.89819 +/-100m); p7__1 (tier 2, 42.50506,-82.88220 +/-100m); p8__1 (tier 2, 42.51153,-82.88009 +/-100m); p8__4 (tier 2, 42.51153,-82.88009 +/-100m)"}],"items":[{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114sm:g041811945:04181_1945-0001a__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Saint Clair Shores, Michigan | 1945 | sanborn04181_002 p1a [2]","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.73"},{"label":"confidence_provisional","value":"true"},{"label":"confidence_model","value":"corpus-v2"},{"label":"split_canvas_x","value":"3171.2"},{"label":"split_canvas_y","value":"4243.2"},{"label":"split_canvas_w","value":"3340.8"},{"label":"split_canvas_h","value":"3464.8"}],"created":"2026-10-18T23:19:55Z","modified":"2026-10-18T23:19:55Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114sm:g041811945:04181_1945-0001a__2/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114sm:g041811945:04181_1945-0001a","type":"ImageService3","width":1628,"height":1927},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1158.0,1911.0 1606.0,1922.2 1606.0,1891.0 1608.3,1890.6 1613.2,1173.3 1582.6,1068.7 1222.2,1074.0 1317.9,1272.2 1311.0,1272.3 1299.8,1272.4 1158.0,1911.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114sm:g041811945:04181_1945-0001a__2/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1318.3,1538.3],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-82.86737505694248,42.53479077417272]}},{"type":"Feature","properties":{"resourceCoords":[1318.3,1755.2],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-82.8679515644408,42.534104531023495]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114sm:g041811945:04181_1945-0001b__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Saint Clair Shores, Michigan | 1945 | sanborn04181_002 p1b [2]","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.70"},{"label":"confidence_provisional","value":"true"},{"label":"confidence_model","value":"corpus-v2"},{"label":"split_canvas_x","value":"3168.8"},{"label":"split_canvas_y","value":"4253.2"},{"label":"split_canvas_w","value":"3343.2"},{"label":"split_canvas_h","value":"3454.8"}],"created":"2026-10-18T23:19:55Z","modified":"2026-10-18T23:19:55Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114sm:g041811945:04181_1945-0001b__2/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114sm:g041811945:04181_1945-0001b","type":"ImageService3","width":1628,"height":1927},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1223.4,1076.7 836.5,1081.5 809.1,1174.9 814.6,1439.4 962.5,1879.8 1018.7,1908.9 1157.2,1912.7 1300.4,1275.1 1311.6,1275.0 1313.3,1275.0 1318.5,1275.0 1223.4,1076.7\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114sm:g041811945:04181_1945-0001b__2/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1318.1,1541.1],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-82.86737676686032,42.53479035093542]}},{"type":"Feature","properties":{"resourceCoords":[1318.1,1757.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-82.86794927235408,42.53410524585868]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114sm:g041811945:04181_1945-0002__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Saint Clair Shores, Michigan | 1945 | sanborn04181_002 p2 [1]","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.88"},{"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":"2026-10-18T23:19:55Z","modified":"2026-10-18T23:19:55Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114sm:g041811945:04181_1945-0002__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114sm:g041811945:04181_1945-0002","type":"ImageService3","width":1628,"height":1927},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1462.8,643.2 1299.4,524.1 1286.8,528.0 598.5,532.5 596.4,529.8 591.2,529.8 586.5,516.5 517.5,424.6 453.3,108.1 308.6,51.5 103.2,68.2 94.0,324.1 24.2,534.5 69.1,815.0 65.0,1027.2 99.3,1062.0 393.5,1070.7 487.4,1071.4 490.1,1073.5 624.1,1440.1 621.9,1442.5 568.0,1442.5 562.2,1442.5 521.6,1442.5 407.3,1445.2 434.9,1459.2 386.0,1509.5 361.7,1592.6 361.7,1617.9 394.1,1782.9 369.4,1836.9 399.0,1881.0 478.4,1901.2 970.9,1883.5 1184.6,1833.5 1257.5,1798.3 1305.5,1721.5 1395.7,1692.3 1406.1,1692.5 1489.8,1644.6 1478.4,1573.7 1474.3,1407.6 1476.5,1324.9 1477.7,1099.0 1474.5,643.3 1462.8,643.2\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114sm:g041811945:04181_1945-0002__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[363.0,1566.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-82.9095006735473,42.467836090043406]}},{"type":"Feature","properties":{"resourceCoords":[1483.0,875.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-82.90308845906698,42.468991571356405]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114sm:g041811945:04181_1945-0002__3/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Saint Clair Shores, Michigan | 1945 | sanborn04181_002 p2 [3]","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.74"},{"label":"confidence_provisional","value":"true"},{"label":"confidence_model","value":"corpus-v2"},{"label":"split_canvas_x","value":"3277.2"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"3234.8"},{"label":"split_canvas_h","value":"2111.6"}],"created":"2026-10-18T23:19:55Z","modified":"2026-10-18T23:19:55Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114sm:g041811945:04181_1945-0002__3/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114sm:g041811945:04181_1945-0002","type":"ImageService3","width":1628,"height":1927},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1616.6,289.6 1594.8,58.4 1492.7,63.2 1447.2,15.8 856.0,15.1 833.4,41.3 852.3,523.0 1609.8,502.8 1616.6,289.6\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114sm:g041811945:04181_1945-0002__3/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1459.1,412.9],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-82.90107095785233,42.4589525505283]}},{"type":"Feature","properties":{"resourceCoords":[1459.1,71.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-82.90056554057192,42.46015411555083]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114sm:g041811945:04181_1945-0003__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Saint Clair Shores, Michigan | 1945 | sanborn04181_002 p3 [1]","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"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":"2026-10-18T23:19:55Z","modified":"2026-10-18T23:19:55Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114sm:g041811945:04181_1945-0003__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114sm:g041811945:04181_1945-0003","type":"ImageService3","width":1628,"height":1927},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"149.6,1870.0 575.6,1881.0 607.1,1859.5 605.0,1768.2 641.0,1691.3 641.0,1683.4 645.0,1682.8 885.8,1614.2 886.9,1615.0 888.7,1614.4 890.1,1617.4 925.8,1643.7 935.0,1721.2 982.1,1737.0 1020.9,1847.3 1157.2,1842.5 1182.2,1872.9 1333.4,1878.7 1389.4,1922.2 1456.9,1924.0 1448.0,1882.4 1438.7,1800.2 1441.2,1753.3 1452.8,1677.5 1465.1,1618.8 1470.3,1561.2 1470.1,1489.2 1466.8,1368.9 1469.6,1328.0 1469.9,1060.3 1478.6,509.6 1505.5,509.4 1492.7,74.0 1480.0,66.1 1456.1,39.1 1017.4,20.9 404.9,34.7 92.2,87.7 67.9,95.5 41.2,253.3 38.0,689.6 213.3,819.3 225.1,819.4 225.2,1275.9 222.6,1502.2 219.8,1585.0 222.8,1751.5 233.7,1822.6 149.6,1870.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114sm:g041811945:04181_1945-0003__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1473.0,1119.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-82.89726692356689,42.46737108561968]}},{"type":"Feature","properties":{"resourceCoords":[221.0,1055.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-82.90314641195339,42.46899179528799]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114sm:g041811945:04181_1945-0004/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Saint Clair Shores, Michigan | 1945 | sanborn04181_002 p4","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.88"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T23:19:55Z","modified":"2026-10-18T23:19:55Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114sm:g041811945:04181_1945-0004/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114sm:g041811945:04181_1945-0004","type":"ImageService3","width":1628,"height":1927},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1626.7,1519.8 1580.3,1554.2 1606.5,1622.5 1581.0,1850.1 1288.5,1849.6 1257.1,1883.0 979.9,1846.7 762.3,1887.1 157.2,1877.5 147.8,1836.0 137.8,1753.8 139.9,1706.9 150.8,1630.9 162.4,1572.0 167.1,1514.4 166.2,1442.2 161.8,1322.0 164.2,1281.0 161.9,1013.1 165.3,461.9 192.3,461.5 175.3,25.9 210.0,25.5 361.1,49.2 1227.2,16.0 1487.2,23.2 1551.6,90.6 1558.7,65.2 1606.8,553.3 1561.2,837.4 1581.7,1099.9 1599.9,1174.3 1617.0,1182.4 1624.1,1170.7 1627.0,1200.5 1627.0,1385.7 1626.7,1519.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114sm:g041811945:04181_1945-0004/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[819.0,1621.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-82.89501427858586,42.46469506355051]}},{"type":"Feature","properties":{"resourceCoords":[819.0,1311.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-82.89453213656786,42.46578243298549]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114sm:g041811945:04181_1945-0005__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Saint Clair Shores, Michigan | 1945 | sanborn04181_002 p5 [2]","metadata":[{"label":"streets","value":"2"},{"label":"intersections","value":"1"},{"label":"confidence","value":"0.48"},{"label":"confidence_provisional","value":"true"},{"label":"confidence_model","value":"corpus-v2"},{"label":"split_canvas_x","value":"2712.8"},{"label":"split_canvas_y","value":"2062.8"},{"label":"split_canvas_w","value":"3799.2"},{"label":"split_canvas_h","value":"1317.2"}],"created":"2026-10-18T23:19:55Z","modified":"2026-10-18T23:19:55Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114sm:g041811945:04181_1945-0005__2/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114sm:g041811945:04181_1945-0005","type":"ImageService3","width":1628,"height":1927},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"865.0,548.8 802.7,586.9 754.3,577.9 697.1,771.1 711.6,843.6 1559.7,843.9 1598.8,802.9 1594.0,557.5 1547.4,530.4 1332.4,528.9 1037.1,585.0 1006.8,556.5 991.4,587.3 982.3,558.5 865.0,548.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114sm:g041811945:04181_1945-0005__2/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[678.2,515.7],"type":"corner"},"geometry":{"type":"Point","coordinates":[-82.87373710808481,42.52810541460537]}},{"type":"Feature","properties":{"resourceCoords":[1628.0,515.7],"type":"corner"},"geometry":{"type":"Point","coordinates":[-82.86967711637291,42.526278364539955]}},{"type":"Feature","properties":{"resourceCoords":[1628.0,845.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-82.87053950483764,42.525240469765]}},{"type":"Feature","properties":{"resourceCoords":[678.2,845.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-82.87459949654954,42.52706751983042]}},{"type":"Feature","properties":{"resourceCoords":[773.2,770.1],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-82.8739975,42.5271207]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114sm:g041811945:04181_1945-0006__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Saint Clair Shores, Michigan | 1945 | sanborn04181_002 p6 [1]","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.31"},{"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":"2903.6"},{"label":"split_canvas_h","value":"3597.6"}],"created":"2026-10-18T23:19:55Z","modified":"2026-10-18T23:19:55Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114sm:g041811945:04181_1945-0006__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114sm:g041811945:04181_1945-0006","type":"ImageService3","width":1628,"height":1927},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"423.8,775.9 652.5,870.9 711.2,861.3 716.0,790.9 655.1,46.8 449.3,73.0 392.1,23.4 30.9,40.5 33.5,210.3 280.1,222.1 380.7,223.8 380.7,224.7 423.8,775.9\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114sm:g041811945:04181_1945-0006__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[681.9,97.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-82.88921851741542,42.48567028202597]}},{"type":"Feature","properties":{"resourceCoords":[681.9,698.3],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-82.88932920550795,42.483475092830496]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114sm:g041811945:04181_1945-0006__3/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Saint Clair Shores, Michigan | 1945 | sanborn04181_002 p6 [3]","metadata":[{"label":"streets","value":"3"},{"label":"intersections","value":"1"},{"label":"confidence","value":"0.45"},{"label":"confidence_provisional","value":"true"},{"label":"confidence_model","value":"corpus-v2"},{"label":"split_canvas_x","value":"2880.4"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"1741.6"},{"label":"split_canvas_h","value":"4094.4"}],"created":"2026-10-18T23:19:55Z","modified":"2026-10-18T23:19:55Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114sm:g041811945:04181_1945-0006__3/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114sm:g041811945:04181_1945-0006","type":"ImageService3","width":1628,"height":1927},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"801.7,915.4 1107.3,1001.8 1123.9,42.5 1078.0,17.4 933.3,44.4 898.2,217.2 898.2,218.8 898.2,232.3 898.0,232.3 898.0,232.4 891.5,232.3 781.5,232.2 765.0,260.4 760.6,872.4 801.7,915.4\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114sm:g041811945:04181_1945-0006__3/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[720.1,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-82.89869344795031,42.497617223418985]}},{"type":"Feature","properties":{"resourceCoords":[1155.5,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-82.89651923935756,42.49772427371727]}},{"type":"Feature","properties":{"resourceCoords":[1155.5,1023.6],"type":"corner"},"geometry":{"type":"Point","coordinates":[-82.89617681808461,42.49395767155408]}},{"type":"Feature","properties":{"resourceCoords":[720.1,1023.6],"type":"corner"},"geometry":{"type":"Point","coordinates":[-82.89835102667736,42.493850621255795]}},{"type":"Feature","properties":{"resourceCoords":[900.3,728.7],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-82.8975525,42.4949799]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114sm:g041811945:04181_1945-0006__4/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Saint Clair Shores, Michigan | 1945 | sanborn04181_002 p6 [4]","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.76"},{"label":"confidence_provisional","value":"true"},{"label":"confidence_model","value":"corpus-v2"},{"label":"split_canvas_x","value":"4588.4"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"1923.6"},{"label":"split_canvas_h","value":"7708.0"}],"created":"2026-10-18T23:19:55Z","modified":"2026-10-18T23:19:55Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114sm:g041811945:04181_1945-0006__4/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114sm:g041811945:04181_1945-0006","type":"ImageService3","width":1628,"height":1927},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1147.7,85.7 1147.7,90.5 1170.9,95.7 1190.6,165.8 1174.8,863.2 1204.3,975.8 1257.5,1045.7 1358.5,1082.3 1382.3,1089.2 1381.7,1090.7 1383.6,1091.4 1308.8,1302.5 1322.1,1735.8 1309.5,1736.6 1432.3,1787.7 1431.8,1800.6 1627.0,1749.0 1627.0,1713.0 1627.0,1673.7 1624.1,1670.5 1627.0,133.2 1610.3,97.4 1432.6,52.6 1147.7,78.8 1147.7,85.7\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114sm:g041811945:04181_1945-0006__4/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1429.0,761.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-82.88095800947475,42.50892097993206]}},{"type":"Feature","properties":{"resourceCoords":[1429.0,1573.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-82.88186898402691,42.505984155432564]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114sm:g041811945:04181_1945-0006__5/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Saint Clair Shores, Michigan | 1945 | sanborn04181_002 p6 [5]","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.66"},{"label":"confidence_provisional","value":"true"},{"label":"confidence_model","value":"corpus-v2"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"873.2"},{"label":"split_canvas_w","value":"5529.2"},{"label":"split_canvas_h","value":"6834.8"}],"created":"2026-10-18T23:19:55Z","modified":"2026-10-18T23:19:55Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114sm:g041811945:04181_1945-0006__5/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114sm:g041811945:04181_1945-0006","type":"ImageService3","width":1628,"height":1927},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"85.8,1847.5 1252.4,1868.2 1282.1,1810.1 1270.8,1409.0 1289.8,1352.3 1289.5,1315.5 1357.8,1148.9 1368.0,1118.3 1342.8,1078.0 949.7,998.2 782.6,916.6 713.2,937.9 622.6,871.5 389.8,804.0 389.4,802.0 387.4,801.4 387.3,790.5 337.4,522.9 332.3,260.4 80.8,254.7 50.9,334.6 61.5,815.9 25.6,1191.0 77.5,1523.1 85.8,1847.5\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114sm:g041811945:04181_1945-0006__5/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[358.1,1809.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-82.88925786835662,42.47667329890975]}},{"type":"Feature","properties":{"resourceCoords":[357.1,283.3],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-82.88932641256831,42.48232017337646]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114sm:g041811945:04181_1945-0007__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Saint Clair Shores, Michigan | 1945 | sanborn04181_002 p7 [2]","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.88"},{"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":"2026-10-18T23:19:55Z","modified":"2026-10-18T23:19:55Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114sm:g041811945:04181_1945-0007__2/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114sm:g041811945:04181_1945-0007","type":"ImageService3","width":1628,"height":1927},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"500.8,1592.5 519.4,1592.4 518.0,1594.5 368.1,1820.9 406.9,1881.5 1531.3,1886.4 1588.8,1851.7 1605.7,1335.5 1573.6,1078.0 1598.5,131.9 1590.5,55.5 1548.7,1.0 1541.8,1.0 1536.9,68.3 1337.4,105.8 1338.9,92.9 1219.5,32.8 573.4,26.8 85.1,72.1 32.9,623.3 59.9,1088.5 32.5,1488.1 73.2,1585.3 499.4,1592.5 500.8,1592.5\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114sm:g041811945:04181_1945-0007__2/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1073.0,1195.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-82.88424740588023,42.50133053046153]}},{"type":"Feature","properties":{"resourceCoords":[951.0,1514.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-82.8850937106295,42.50023431714625]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114sm:g041811945:04181_1945-0008__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Saint Clair Shores, Michigan | 1945 | sanborn04181_002 p8 [2]","metadata":[{"label":"streets","value":"5"},{"label":"intersections","value":"6"},{"label":"confidence","value":"0.16"},{"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":"4016.4"},{"label":"split_canvas_h","value":"7708.0"}],"created":"2026-10-18T23:19:55Z","modified":"2026-10-18T23:19:55Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114sm:g041811945:04181_1945-0008__2/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114sm:g041811945:04181_1945-0008","type":"ImageService3","width":1628,"height":1927},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"344.6,1679.0 343.3,1759.2 718.1,1708.1 717.9,1731.5 913.1,1826.8 970.0,1657.7 958.5,1118.3 996.4,916.8 995.8,843.7 991.7,356.5 932.4,59.1 370.9,56.5 347.0,270.4 255.9,499.3 254.2,508.4 254.2,508.4 233.8,506.0 73.6,487.3 54.5,537.1 62.2,857.5 353.9,890.5 354.5,893.1 357.4,893.1 357.3,903.6 381.8,997.9 384.2,1581.0 344.6,1679.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114sm:g041811945:04181_1945-0008__2/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[715.1,1126.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-82.877593,42.519802]}},{"type":"Feature","properties":{"resourceCoords":[715.1,494.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-82.8769063,42.5220513]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114sm:g041811945:04181_1945-0008__3/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Saint Clair Shores, Michigan | 1945 | sanborn04181_002 p8 [3]","metadata":[{"label":"streets","value":"7"},{"label":"intersections","value":"7"},{"label":"confidence","value":"0.85"},{"label":"confidence_provisional","value":"true"},{"label":"confidence_model","value":"corpus-v2"},{"label":"split_canvas_x","value":"3957.6"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"2554.4"},{"label":"split_canvas_h","value":"7708.0"}],"created":"2026-10-18T23:19:55Z","modified":"2026-10-18T23:19:55Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114sm:g041811945:04181_1945-0008__3/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114sm:g041811945:04181_1945-0008","type":"ImageService3","width":1628,"height":1927},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1037.4,33.3 1033.2,43.6 1037.0,527.2 1067.5,629.2 1040.0,890.8 1047.5,1824.1 1115.2,1839.6 1115.2,1827.8 1402.2,1802.3 1581.0,1848.0 1575.7,1836.5 1624.7,804.0 1580.2,239.6 1600.3,179.6 1407.0,85.2 1407.2,62.0 1036.1,112.8 1037.4,33.3\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114sm:g041811945:04181_1945-0008__3/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1407.2,950.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-82.879186,42.514538]}},{"type":"Feature","properties":{"resourceCoords":[1407.2,62.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-82.878211,42.517728]}}]}}]}