{"id":"https://data.mapsnap.org/runs/v2.0/iiif/chronoscope/sanborn04180_004.main.iiif.json","type":"AnnotationPage","@context":["http://www.w3.org/ns/anno.jsonld"],"label":"Saint Clair, Michigan | 1907 | 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":"14"},{"label":"placed","value":"8"},{"label":"unplaced","value":"6"},{"label":"fit sources","value":"georef 6, georef-snap 2"},{"label":"key map","value":"georeferenced"},{"label":"split sheets","value":"4 sheet(s) cut into 9 panels"},{"label":"unplaced pages","value":"p7__2 (tier 1, 42.82158,-82.49229 +/-107m); p7__3 (tier 1, 42.82190,-82.48833 +/-130m); p8__1 (tier 1, 42.81820,-82.48665 +/-255m); p8__2 (tier 1, 42.81869,-82.48711 +/-100m); p9__1 (tier 1, 42.81060,-82.48642 +/-167m); p9__2 (tier 1, 42.81030,-82.48669 +/-148m)"}],"items":[{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114sm:g041801907:04180_1907-0001__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, Michigan | 1907 | sanborn04180_004 p1 [2]","metadata":[{"label":"streets","value":"2"},{"label":"intersections","value":"1"},{"label":"confidence","value":"0.75"},{"label":"confidence_provisional","value":"true"},{"label":"confidence_model","value":"corpus-v2"},{"label":"split_canvas_x","value":"2668.0"},{"label":"split_canvas_y","value":"2122.0"},{"label":"split_canvas_w","value":"3844.0"},{"label":"split_canvas_h","value":"5586.0"}],"created":"2026-10-18T22:31:47Z","modified":"2026-10-18T22:31:47Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114sm:g041801907:04180_1907-0001__2/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114sm:g041801907:04180_1907-0001","type":"ImageService3","width":1628,"height":1927},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1441.8,1909.2 1558.8,1880.0 1583.0,1781.0 1526.0,1566.9 1594.2,775.9 1507.3,558.3 859.5,567.5 781.8,651.3 753.5,603.2 703.4,786.8 758.7,1333.2 671.1,1413.7 670.8,1456.5 670.3,1518.3 1441.8,1909.2\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114sm:g041801907:04180_1907-0001__2/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[667.0,530.5],"type":"corner"},"geometry":{"type":"Point","coordinates":[-82.4858879833023,42.829561892862344]}},{"type":"Feature","properties":{"resourceCoords":[1628.0,530.5],"type":"corner"},"geometry":{"type":"Point","coordinates":[-82.48349090329629,42.82933670050859]}},{"type":"Feature","properties":{"resourceCoords":[1628.0,1927.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-82.48393776547319,42.826783948598816]}},{"type":"Feature","properties":{"resourceCoords":[667.0,1927.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-82.4863348454792,42.82700914095257]}},{"type":"Feature","properties":{"resourceCoords":[715.0,1740.1],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-82.4861553,42.8273396]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114sm:g041801907:04180_1907-0002/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Saint Clair, Michigan | 1907 | sanborn04180_004 p2","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.97"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T22:31:47Z","modified":"2026-10-18T22:31:47Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114sm:g041801907:04180_1907-0002/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114sm:g041801907:04180_1907-0002","type":"ImageService3","width":1628,"height":1927},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"109.6,659.0 110.9,430.2 42.0,432.2 66.7,84.2 184.8,17.1 1544.6,52.7 1601.3,440.2 1611.5,435.8 1608.8,710.2 1605.1,1505.9 1607.3,1880.5 859.6,1875.7 475.9,1877.6 475.9,1890.7 60.3,1850.0 53.6,1126.3 112.7,986.1 109.6,659.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114sm:g041801907:04180_1907-0002/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1225.0,1124.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-82.48998466616578,42.82701556586504]}},{"type":"Feature","properties":{"resourceCoords":[1589.0,1513.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-82.48920776553928,42.82622706682157]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114sm:g041801907:04180_1907-0003/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Saint Clair, Michigan | 1907 | sanborn04180_004 p3","metadata":[{"label":"streets","value":"8"},{"label":"intersections","value":"13"},{"label":"confidence","value":"0.95"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T22:31:47Z","modified":"2026-10-18T22:31:47Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114sm:g041801907:04180_1907-0003/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114sm:g041801907:04180_1907-0003","type":"ImageService3","width":1628,"height":1927},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1517.4,1846.6 1151.8,1850.0 375.0,1849.1 107.1,1847.4 39.0,1692.2 87.0,819.4 99.0,800.0 195.6,800.6 578.9,39.0 580.0,43.4 1160.5,33.0 1360.4,116.0 1476.8,116.9 1548.5,361.3 1534.5,361.4 1520.0,1125.8 1515.5,1125.8 1514.9,1489.5 1517.4,1846.6\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114sm:g041801907:04180_1907-0003/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[414.0,756.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-82.4861553,42.8273396]}},{"type":"Feature","properties":{"resourceCoords":[777.0,1491.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-82.488134,42.8268444]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114sm:g041801907:04180_1907-0004/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Saint Clair, Michigan | 1907 | sanborn04180_004 p4","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.99"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T22:31:47Z","modified":"2026-10-18T22:31:47Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114sm:g041801907:04180_1907-0004/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114sm:g041801907:04180_1907-0004","type":"ImageService3","width":1628,"height":1927},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"109.5,1685.3 74.5,1517.9 73.6,1442.5 116.9,1370.9 52.1,1230.9 65.9,176.9 51.6,175.7 51.5,162.6 435.1,154.8 1182.8,148.2 1548.5,141.3 1558.0,539.2 1561.2,937.4 1568.3,1318.0 1572.3,1688.3 1158.9,1692.9 824.8,1694.6 107.0,1712.7 109.5,1685.3\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114sm:g041801907:04180_1907-0004/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[74.0,473.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-82.49212510928267,42.825255909184406]}},{"type":"Feature","properties":{"resourceCoords":[1545.0,944.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-82.48866476007387,42.82402500103668]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114sm:g041801907:04180_1907-0005/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Saint Clair, Michigan | 1907 | sanborn04180_004 p5","metadata":[{"label":"streets","value":"10"},{"label":"intersections","value":"16"},{"label":"confidence","value":"0.85"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T22:31:47Z","modified":"2026-10-18T22:31:47Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114sm:g041801907:04180_1907-0005/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114sm:g041801907:04180_1907-0005","type":"ImageService3","width":1628,"height":1927},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"127.4,1365.4 125.8,982.4 128.4,581.6 124.6,181.1 499.6,182.7 499.5,187.4 1287.4,204.5 1287.4,218.9 1539.5,145.7 1537.8,295.9 1568.9,1828.0 1576.1,1858.3 1284.9,1797.5 1284.9,1806.2 494.2,1765.6 494.5,1744.2 126.0,1738.0 127.4,1365.4\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114sm:g041801907:04180_1907-0005/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[497.0,582.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-82.4875858,42.824668]}},{"type":"Feature","properties":{"resourceCoords":[126.0,1738.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-82.4888592,42.8226724]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114sm:g041801907:04180_1907-0006/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Saint Clair, Michigan | 1907 | sanborn04180_004 p6","metadata":[{"label":"streets","value":"10"},{"label":"intersections","value":"21"},{"label":"confidence","value":"0.99"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T22:31:47Z","modified":"2026-10-18T22:31:47Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114sm:g041801907:04180_1907-0006/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114sm:g041801907:04180_1907-0006","type":"ImageService3","width":1628,"height":1927},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"831.0,171.3 1160.8,172.8 1569.0,172.0 1564.3,553.0 1569.0,936.3 1594.5,936.2 1521.2,1801.5 1106.8,1893.4 95.3,1866.2 55.5,849.0 122.3,182.6 831.0,171.3\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114sm:g041801907:04180_1907-0006/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1201.0,937.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-82.4900339,42.8213594]}},{"type":"Feature","properties":{"resourceCoords":[1569.0,172.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-82.4888592,42.8226724]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114sm:g041801907:04180_1907-0007__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, Michigan | 1907 | sanborn04180_004 p7 [1]","metadata":[{"label":"streets","value":"5"},{"label":"intersections","value":"6"},{"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":"4720.0"},{"label":"split_canvas_h","value":"7708.0"}],"created":"2026-10-18T22:31:47Z","modified":"2026-10-18T22:31:47Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114sm:g041801907:04180_1907-0007__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114sm:g041801907:04180_1907-0007","type":"ImageService3","width":1628,"height":1927},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"140.7,268.6 77.3,560.7 86.0,560.7 38.9,1355.0 17.4,1354.5 8.2,1724.8 398.4,1734.7 791.0,1735.0 791.3,1708.9 778.3,1707.6 760.0,1115.5 1114.0,930.2 1179.0,531.3 1179.0,531.0 1144.7,181.7 879.2,100.7 140.7,268.6\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114sm:g041801907:04180_1907-0007__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[410.0,1362.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-82.48809,42.821874]}},{"type":"Feature","properties":{"resourceCoords":[791.0,1735.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-82.4891135,42.8212709]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114sm:g041801907:04180_1907-0009__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, Michigan | 1907 | sanborn04180_004 p9 [3]","metadata":[{"label":"streets","value":"2"},{"label":"intersections","value":"1"},{"label":"confidence","value":"0.96"},{"label":"confidence_provisional","value":"true"},{"label":"confidence_model","value":"corpus-v2"},{"label":"split_canvas_x","value":"3774.8"},{"label":"split_canvas_y","value":"5090.8"},{"label":"split_canvas_w","value":"2737.2"},{"label":"split_canvas_h","value":"2617.2"}],"created":"2026-10-18T22:31:47Z","modified":"2026-10-18T22:31:47Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114sm:g041801907:04180_1907-0009__3/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114sm:g041801907:04180_1907-0009","type":"ImageService3","width":1628,"height":1927},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"943.7,1925.0 1307.1,1926.0 1407.5,1926.0 1453.8,1826.2 1462.2,1502.4 1471.3,1276.0 1441.8,1275.8 1403.2,1275.6 1400.3,1303.0 1036.5,1336.2 964.4,1431.0 943.7,1925.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114sm:g041801907:04180_1907-0009__3/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[943.7,1272.7],"type":"corner"},"geometry":{"type":"Point","coordinates":[-82.49384066188803,42.82862357398342]}},{"type":"Feature","properties":{"resourceCoords":[1628.0,1272.7],"type":"corner"},"geometry":{"type":"Point","coordinates":[-82.49212517380487,42.82850879018477]}},{"type":"Feature","properties":{"resourceCoords":[1628.0,1927.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-82.49227499672581,42.827307102816974]}},{"type":"Feature","properties":{"resourceCoords":[943.7,1927.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-82.49399048480898,42.827421886615625]}},{"type":"Feature","properties":{"resourceCoords":[1462.2,1502.5],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-82.4925935,42.8281147]}}]}}]}