{"id":"https://data.mapsnap.org/runs/v2.0/iiif/chronoscope/sanborn04057_001.main.iiif.json","type":"AnnotationPage","@context":["http://www.w3.org/ns/anno.jsonld"],"label":"Jackson, Michigan | 1886 | mapsnap generated fit (2026-10-19)","creator":{"type":"Software","name":"mapsnap","homepage":"https://mapsnap.org"},"rights":"https://opendatacommons.org/licenses/odbl/1-0/","metadata":[{"label":"generated","value":"2026-10-19"},{"label":"run","value":"corpus-v2"},{"label":"pages","value":"31"},{"label":"placed","value":"12"},{"label":"unplaced","value":"19"},{"label":"fit sources","value":"georef 10, georef-snap 2"},{"label":"key map","value":"georeferenced"},{"label":"split sheets","value":"4 sheet(s) cut into 18 panels"},{"label":"unplaced pages","value":"p1 (tier 1, 42.24706,-84.40200 +/-276m); p12 (tier 1, 42.26049,-84.41088 +/-262m); p14__1 (tier 4, 42.24839,-84.40381 +/-1131m); p14__2 (tier 4, 42.24839,-84.40381 +/-1131m); p14__3 (tier 1, 42.38522,-84.46209 +/-129m); p14__4 (tier 4, 42.24839,-84.40381 +/-1131m); p15__1 (tier 4, 42.24839,-84.40381 +/-1131m); p15__3 (tier 4, 42.24839,-84.40381 +/-1131m); p16__1 (tier 4, 42.24839,-84.40381 +/-1131m); p16__2 (tier 4, 42.24839,-84.40381 +/-1131m); p16__3 (tier 4, 42.24839,-84.40381 +/-1131m); p16__4 (tier 4, 42.24839,-84.40381 +/-1131m); p17__1 (tier 4, 42.24839,-84.40381 +/-1131m); p17__2 (tier 4, 42.24839,-84.40381 +/-1131m); p17__3 (tier 4, 42.24839,-84.40381 +/-1131m); p17__4 (tier 4, 42.24839,-84.40381 +/-1131m); p17__5 (tier 4, 42.24839,-84.40381 +/-1131m); p17__6 (tier 1, 42.25684,-84.40332 +/-100m); p9 (tier 1, 42.24082,-84.40146 +/-248m)"}],"items":[{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114jm:g040571886:04057_1886-0010/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Jackson, Michigan | 1886 | sanborn04057_001 p10","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.74"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-19T23:28:58Z","modified":"2026-10-19T23:28:58Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114jm:g040571886:04057_1886-0010/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114jm:g040571886:04057_1886-0010","type":"ImageService3","width":1628,"height":1927},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1595.6,1759.1 1595.5,1794.2 1556.2,1803.5 1181.7,1800.1 1181.5,1807.0 48.7,1751.2 53.0,1458.0 54.6,1405.2 11.5,1404.4 1.1,1404.2 6.7,73.3 20.6,147.1 54.9,126.7 55.8,81.5 78.1,32.8 252.8,16.2 252.6,66.5 1167.7,145.6 1167.5,95.3 1589.0,177.1 1589.6,225.3 1587.3,225.5 1602.0,1553.7 1594.1,1553.6 1595.6,1759.1\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114jm:g040571886:04057_1886-0010/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1165.0,734.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-84.40601107566656,42.25234429023411]}},{"type":"Feature","properties":{"resourceCoords":[77.0,1292.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-84.40879052905525,42.25122326274198]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114jm:g040571886:04057_1886-0011/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Jackson, Michigan | 1886 | sanborn04057_001 p11","metadata":[{"label":"streets","value":"4"},{"label":"intersections","value":"3"},{"label":"confidence","value":"0.32"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-19T23:28:58Z","modified":"2026-10-19T23:28:58Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114jm:g040571886:04057_1886-0011/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114jm:g040571886:04057_1886-0011","type":"ImageService3","width":1628,"height":1927},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1426.8,1908.2 1605.0,1889.7 1611.4,154.7 1493.7,39.5 1388.7,29.8 913.7,117.5 658.8,97.1 622.8,21.2 88.2,85.2 70.3,662.2 34.3,684.0 20.2,662.0 18.2,1631.0 1.0,1687.7 1.0,1744.6 976.4,1824.9 976.1,1771.3 1425.9,1856.8 1426.8,1908.2\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114jm:g040571886:04057_1886-0011/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[972.0,1122.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-84.4060888,42.2547338]}},{"type":"Feature","properties":{"resourceCoords":[1419.0,1134.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-84.4050036,42.2547291]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114jm:g040571886:04057_1886-0013/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Jackson, Michigan | 1886 | sanborn04057_001 p13","metadata":[{"label":"streets","value":"7"},{"label":"intersections","value":"5"},{"label":"confidence","value":"0.74"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-19T23:28:58Z","modified":"2026-10-19T23:28:58Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114jm:g040571886:04057_1886-0013/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114jm:g040571886:04057_1886-0013","type":"ImageService3","width":1628,"height":1927},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"129.5,1.0 111.8,1.0 113.6,581.1 112.9,909.2 65.1,917.6 94.8,1862.9 895.1,1900.1 1245.8,1849.5 1537.6,1881.0 1573.4,1830.4 1585.8,1668.6 1607.8,1584.4 1583.7,1075.6 1540.1,1041.7 1589.9,994.7 1626.9,366.9 1600.3,1.0 1570.6,1.0 1570.0,67.0 1078.0,63.1 1078.3,24.8 1078.7,1.0 1046.5,1.0 1037.6,40.0 134.7,50.9 129.5,1.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114jm:g040571886:04057_1886-0013/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1570.0,67.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-84.3951296,42.2503168]}},{"type":"Feature","properties":{"resourceCoords":[111.0,67.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-84.3986748,42.2496291]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114jm:g040571886:04057_1886-0015__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Jackson, Michigan | 1886 | sanborn04057_001 p15 [2]","metadata":[{"label":"streets","value":"3"},{"label":"intersections","value":"2"},{"label":"confidence","value":"0.69"},{"label":"confidence_provisional","value":"true"},{"label":"confidence_model","value":"corpus-v2"},{"label":"split_canvas_x","value":"3443.6"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"3068.4"},{"label":"split_canvas_h","value":"1654.0"}],"created":"2026-10-19T23:28:58Z","modified":"2026-10-19T23:28:58Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114jm:g040571886:04057_1886-0015__2/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114jm:g040571886:04057_1886-0015","type":"ImageService3","width":1628,"height":1927},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"961.9,336.1 961.8,373.6 1443.2,373.6 1443.3,308.0 1472.2,307.8 1451.6,53.5 971.0,129.3 930.8,312.1 961.9,311.8 961.9,336.1\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114jm:g040571886:04057_1886-0015__2/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[961.8,373.6],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-84.3963277,42.2500919]}},{"type":"Feature","properties":{"resourceCoords":[1443.2,373.6],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-84.3951296,42.2503168]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114jm:g040571886:04057_1886-0015__4/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Jackson, Michigan | 1886 | sanborn04057_001 p15 [4]","metadata":[{"label":"streets","value":"2"},{"label":"intersections","value":"1"},{"label":"confidence","value":"0.89"},{"label":"confidence_provisional","value":"true"},{"label":"confidence_model","value":"corpus-v2"},{"label":"split_canvas_x","value":"3405.2"},{"label":"split_canvas_y","value":"3296.8"},{"label":"split_canvas_w","value":"3106.8"},{"label":"split_canvas_h","value":"4411.2"}],"created":"2026-10-19T23:28:58Z","modified":"2026-10-19T23:28:58Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114jm:g040571886:04057_1886-0015__4/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114jm:g040571886:04057_1886-0015","type":"ImageService3","width":1628,"height":1927},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1570.9,1884.7 1539.4,864.7 1297.5,914.4 1214.0,855.7 1039.5,878.0 904.5,1314.2 890.2,1874.0 1570.9,1884.7\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114jm:g040571886:04057_1886-0015__4/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[851.3,824.2],"type":"corner"},"geometry":{"type":"Point","coordinates":[-84.39689577300534,42.24089590514176]}},{"type":"Feature","properties":{"resourceCoords":[1628.0,824.2],"type":"corner"},"geometry":{"type":"Point","coordinates":[-84.39522719673015,42.2416386546559]}},{"type":"Feature","properties":{"resourceCoords":[1628.0,1927.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-84.39380304900774,42.23988500680131]}},{"type":"Feature","properties":{"resourceCoords":[851.3,1927.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-84.39547162528294,42.23914225728717]}},{"type":"Feature","properties":{"resourceCoords":[1096.2,1407.1],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-84.3956169,42.2402032]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114jm:g040571886:04057_1886-0002/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Jackson, Michigan | 1886 | sanborn04057_001 p2","metadata":[{"label":"streets","value":"5"},{"label":"intersections","value":"8"},{"label":"confidence","value":"0.77"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-19T23:28:58Z","modified":"2026-10-19T23:28:58Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114jm:g040571886:04057_1886-0002/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114jm:g040571886:04057_1886-0002","type":"ImageService3","width":1628,"height":1927},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"338.8,1901.2 44.0,1858.8 12.7,211.0 391.6,104.8 391.9,154.1 641.0,147.7 1063.8,142.3 1568.1,131.6 1575.2,1570.0 1576.6,1608.2 1627.0,1608.0 1627.0,1651.3 1627.0,1653.8 1398.2,1898.8 338.8,1901.2\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114jm:g040571886:04057_1886-0002/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1572.0,1126.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-84.4088185,42.2456284]}},{"type":"Feature","properties":{"resourceCoords":[407.0,1620.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-84.4117746,42.2447064]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114jm:g040571886:04057_1886-0003/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Jackson, Michigan | 1886 | sanborn04057_001 p3","metadata":[{"label":"streets","value":"4"},{"label":"intersections","value":"2"},{"label":"confidence","value":"0.46"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-19T23:28:58Z","modified":"2026-10-19T23:28:58Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114jm:g040571886:04057_1886-0003/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114jm:g040571886:04057_1886-0003","type":"ImageService3","width":1628,"height":1927},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"41.6,1888.5 412.7,1788.7 412.5,1836.8 655.8,1833.2 1068.7,1832.4 1561.2,1827.1 1563.7,1401.0 1561.3,904.5 1569.2,351.8 1568.7,52.8 1569.3,1.0 1516.0,1.0 1516.2,21.0 1151.1,32.0 1024.1,101.1 820.5,99.4 631.6,20.6 90.6,79.3 64.2,229.8 48.1,248.1 17.8,227.4 41.0,1819.9 41.6,1888.5\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114jm:g040571886:04057_1886-0003/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[414.0,1336.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-84.4118113,42.2484198]}},{"type":"Feature","properties":{"resourceCoords":[1563.0,1336.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-84.4088287,42.2484382]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114jm:g040571886:04057_1886-0004/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Jackson, Michigan | 1886 | sanborn04057_001 p4","metadata":[{"label":"streets","value":"4"},{"label":"intersections","value":"3"},{"label":"confidence","value":"0.93"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-19T23:28:58Z","modified":"2026-10-19T23:28:58Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114jm:g040571886:04057_1886-0004/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114jm:g040571886:04057_1886-0004","type":"ImageService3","width":1628,"height":1927},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"500.6,1728.3 219.4,1722.1 222.6,1278.7 220.9,762.0 230.0,186.8 230.0,179.8 1406.3,219.8 1404.8,343.6 1402.2,439.9 1407.7,797.4 1416.4,1094.6 1418.5,1262.8 1416.6,1731.2 500.6,1728.3\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114jm:g040571886:04057_1886-0004/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1418.0,1211.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-84.4058454,42.2484599]}},{"type":"Feature","properties":{"resourceCoords":[222.0,1211.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-84.4088287,42.2484382]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114jm:g040571886:04057_1886-0005/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Jackson, Michigan | 1886 | sanborn04057_001 p5","metadata":[{"label":"streets","value":"5"},{"label":"intersections","value":"9"},{"label":"confidence","value":"0.91"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-19T23:28:58Z","modified":"2026-10-19T23:28:58Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114jm:g040571886:04057_1886-0005/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114jm:g040571886:04057_1886-0005","type":"ImageService3","width":1628,"height":1927},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1489.1,1799.4 1348.2,1873.2 968.4,1838.5 253.0,1856.6 231.4,1915.1 51.5,1923.3 283.2,1673.8 283.1,1627.3 232.0,1627.8 230.4,1588.9 219.4,128.1 500.4,130.2 1415.8,119.6 1425.2,678.5 1423.9,1086.2 1429.9,1573.5 1436.4,1800.1 1489.1,1799.4\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114jm:g040571886:04057_1886-0005/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1425.0,636.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-84.4058196,42.2465451]}},{"type":"Feature","properties":{"resourceCoords":[226.0,1138.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-84.4088185,42.2456284]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114jm:g040571886:04057_1886-0006/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Jackson, Michigan | 1886 | sanborn04057_001 p6","metadata":[{"label":"streets","value":"4"},{"label":"intersections","value":"4"},{"label":"confidence","value":"0.90"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-19T23:28:58Z","modified":"2026-10-19T23:28:58Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114jm:g040571886:04057_1886-0006/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114jm:g040571886:04057_1886-0006","type":"ImageService3","width":1628,"height":1927},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"109.4,1700.2 110.5,1214.5 117.7,808.3 116.5,251.3 162.4,252.6 738.7,247.0 790.2,251.6 867.0,290.9 900.0,249.1 1062.4,104.5 1627.0,179.1 1627.0,296.3 1627.0,311.1 1596.8,317.5 1584.3,1626.9 1523.7,1873.7 235.8,1890.4 165.2,1926.0 119.9,1926.0 112.6,1926.0 109.4,1700.2\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114jm:g040571886:04057_1886-0006/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[110.0,1258.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-84.4058281,42.2456326]}},{"type":"Feature","properties":{"resourceCoords":[110.0,1748.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-84.4058163,42.244724]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114jm:g040571886:04057_1886-0007/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Jackson, Michigan | 1886 | sanborn04057_001 p7","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.76"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-19T23:28:58Z","modified":"2026-10-19T23:28:58Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114jm:g040571886:04057_1886-0007/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114jm:g040571886:04057_1886-0007","type":"ImageService3","width":1628,"height":1927},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1618.1,1840.7 1587.5,1716.2 1627.0,1721.8 1627.0,1695.3 1627.0,1485.9 1613.2,1433.0 1579.3,1420.2 1524.3,1027.1 1526.2,981.8 1371.3,339.4 1309.2,73.0 1290.1,77.7 511.1,39.8 510.6,1.0 502.3,1.0 504.8,212.7 504.9,249.0 464.2,258.7 76.6,256.9 73.7,387.4 70.0,483.5 71.6,840.0 77.2,1136.5 77.4,1304.3 70.5,1771.4 116.5,1773.2 693.7,1773.9 745.2,1779.0 821.6,1819.2 855.2,1777.7 1019.4,1634.7 1584.0,1715.6 1582.5,1847.8 1583.5,1847.6 1618.1,1840.7\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114jm:g040571886:04057_1886-0007/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[498.0,758.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-84.40481930210757,42.24939153283553]}},{"type":"Feature","properties":{"resourceCoords":[80.0,1354.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-84.40583392184338,42.24827231617121]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114jm:g040571886:04057_1886-0008/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Jackson, Michigan | 1886 | sanborn04057_001 p8","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"8"},{"label":"confidence","value":"0.88"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-19T23:28:58Z","modified":"2026-10-19T23:28:58Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114jm:g040571886:04057_1886-0008/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114jm:g040571886:04057_1886-0008","type":"ImageService3","width":1628,"height":1927},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"115.2,52.1 113.0,325.2 112.7,984.8 100.2,1028.2 61.4,1422.6 91.3,1442.9 92.3,1497.5 37.0,1726.4 1.0,1712.1 1.0,1901.9 1.2,1922.6 128.2,1926.0 87.2,1891.7 79.8,1865.6 106.0,1849.1 365.1,1883.2 493.2,1796.6 816.7,1881.8 1513.1,1880.2 1572.0,1871.8 1573.2,1543.0 1572.2,960.4 1589.8,960.5 1522.8,315.5 1605.4,201.9 1537.0,124.6 1517.3,50.8 115.2,52.1\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114jm:g040571886:04057_1886-0008/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1088.0,1027.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-84.3998462,42.2494017]}},{"type":"Feature","properties":{"resourceCoords":[111.0,1027.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-84.4022135,42.2489399]}}]}}]}