{"id":"https://data.mapsnap.org/runs/v2.0/iiif/chronoscope/sanborn04237_003.main.iiif.json","type":"AnnotationPage","@context":["http://www.w3.org/ns/anno.jsonld"],"label":"Williamston, Michigan | 1910 | mapsnap generated fit (2026-10-20)","creator":{"type":"Software","name":"mapsnap","homepage":"https://mapsnap.org"},"rights":"https://opendatacommons.org/licenses/odbl/1-0/","metadata":[{"label":"generated","value":"2026-10-20"},{"label":"run","value":"corpus-v2"},{"label":"pages","value":"7"},{"label":"placed","value":"4"},{"label":"unplaced","value":"3"},{"label":"fit sources","value":"georef-snap 2, georef 2"},{"label":"key map","value":"none"},{"label":"split sheets","value":"2 sheet(s) cut into 6 panels"},{"label":"unplaced pages","value":"p1__1 (tier 1, 42.68600,-84.28397 +/-109m); p1__2 (tier 4, 42.68772,-84.28265 +/-370m); p1__4 (tier 4, 42.68772,-84.28265 +/-370m)"}],"items":[{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114wm:g042371910:04237_1910-0001__3/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Williamston, Michigan | 1910 | sanborn04237_003 p1 [3]","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.59"},{"label":"confidence_provisional","value":"true"},{"label":"confidence_model","value":"corpus-v2"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"2582.0"},{"label":"split_canvas_w","value":"6512.0"},{"label":"split_canvas_h","value":"5126.0"}],"created":"2026-10-20T03:39:14Z","modified":"2026-10-20T03:39:14Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114wm:g042371910:04237_1910-0001__3/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114wm:g042371910:04237_1910-0001","type":"ImageService3","width":1628,"height":1927},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1576.3,816.6 833.3,796.2 745.0,676.4 661.9,662.4 69.4,689.8 58.0,1826.5 134.7,1917.2 380.0,1923.8 479.5,1826.9 1157.9,1926.0 1160.0,1926.0 1213.2,1874.6 1246.0,1568.3 1277.0,1556.2 1300.7,1556.2 1370.7,1556.1 1593.2,1534.3 1576.3,816.6\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114wm:g042371910:04237_1910-0001__3/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1002.0,1027.3],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-84.28058615856668,42.68514008450921]}},{"type":"Feature","properties":{"resourceCoords":[548.0,915.4],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-84.28179665974638,42.685281748959646]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114wm:g042371910:04237_1910-0002__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Williamston, Michigan | 1910 | sanborn04237_003 p2 [1]","metadata":[{"label":"streets","value":"2"},{"label":"intersections","value":"1"},{"label":"confidence","value":"0.65"},{"label":"confidence_provisional","value":"true"},{"label":"confidence_model","value":"corpus-v2"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"5888.0"},{"label":"split_canvas_w","value":"2404.8"},{"label":"split_canvas_h","value":"1820.0"}],"created":"2026-10-20T03:39:14Z","modified":"2026-10-20T03:39:14Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114wm:g042371910:04237_1910-0002__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114wm:g042371910:04237_1910-0002","type":"ImageService3","width":1628,"height":1927},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"200.6,1926.0 324.3,1926.0 325.8,1889.1 327.7,1840.3 332.2,1758.9 333.8,1731.1 336.5,1689.3 406.8,1691.8 489.7,1726.7 577.2,1708.8 536.0,1489.5 480.1,1476.2 328.4,1488.3 305.0,1571.7 27.2,1491.3 5.1,1825.5 1.0,1824.8 1.0,1870.2 200.6,1926.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114wm:g042371910:04237_1910-0002__1/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,1472.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-84.28416277868952,42.69034970007556]}},{"type":"Feature","properties":{"resourceCoords":[601.2,1472.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-84.28262262993152,42.69047319459546]}},{"type":"Feature","properties":{"resourceCoords":[601.2,1927.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-84.28249545273815,42.68961600879358]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1927.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-84.28403560149614,42.689492514273674]}},{"type":"Feature","properties":{"resourceCoords":[338.1,1663.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-84.2832418,42.6900585]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114wm:g042371910:04237_1910-0002__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Williamston, Michigan | 1910 | sanborn04237_003 p2 [2]","metadata":[{"label":"streets","value":"5"},{"label":"intersections","value":"10"},{"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":"2026-10-20T03:39:14Z","modified":"2026-10-20T03:39:14Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114wm:g042371910:04237_1910-0002__2/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114wm:g042371910:04237_1910-0002","type":"ImageService3","width":1628,"height":1927},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1175.2,69.3 562.1,22.1 81.3,135.5 52.4,839.9 128.5,1376.5 310.9,1467.7 588.7,1469.1 589.4,1472.0 590.9,1472.0 591.0,1478.1 678.0,1806.7 1310.3,1861.8 1539.2,1833.3 1546.8,1796.3 1540.2,1351.8 1532.9,1017.0 1510.6,253.1 1506.5,146.2 1383.0,154.8 1178.8,114.4 1175.2,69.3\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114wm:g042371910:04237_1910-0002__2/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1528.0,842.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-84.2830938,42.6882426]}},{"type":"Feature","properties":{"resourceCoords":[69.0,713.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-84.2868626,42.6884016]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114wm:g042371910:04237_1910-0003/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Williamston, Michigan | 1910 | sanborn04237_003 p3","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.90"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-20T03:39:14Z","modified":"2026-10-20T03:39:14Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114wm:g042371910:04237_1910-0003/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114wm:g042371910:04237_1910-0003","type":"ImageService3","width":1628,"height":1927},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"121.7,349.9 111.6,1125.0 104.7,1464.6 92.5,1915.4 113.7,1831.7 572.5,1894.2 1543.0,1892.7 1604.3,1549.6 1569.6,142.2 1287.8,34.7 375.5,33.1 370.6,11.0 282.5,32.4 199.8,1.0 125.8,1.0 124.6,42.5 122.3,153.4 122.2,203.0 121.7,349.9\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114wm:g042371910:04237_1910-0003/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[776.0,1199.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-84.28136987975013,42.687864250384884]}},{"type":"Feature","properties":{"resourceCoords":[117.0,398.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-84.28318837697228,42.68926661626711]}}]}}]}