{"id":"https://data.mapsnap.org/runs/v1.3/iiif/chronoscope/sanborn03950_001.main.iiif.json","type":"AnnotationPage","@context":["http://www.w3.org/ns/anno.jsonld"],"label":"Cass City, Michigan | 1894 | mapsnap generated fit (2026-09-20)","creator":{"type":"Software","name":"mapsnap","homepage":"https://mapsnap.org"},"rights":"https://opendatacommons.org/licenses/odbl/1-0/","metadata":[{"label":"generated","value":"2026-09-20"},{"label":"run","value":"corpus-v1"},{"label":"pages","value":"7"},{"label":"placed","value":"4"},{"label":"unplaced","value":"3"},{"label":"fit sources","value":"georef 4"},{"label":"key map","value":"none"},{"label":"split sheets","value":"2 sheet(s) cut into 7 panels"},{"label":"unplaced pages","value":"p2__2 (tier 2, 43.60132,-83.17439 +/-100m); p2__4 (tier 2, 43.60132,-83.17439 +/-100m); p2__5 (tier 2, 43.60132,-83.17439 +/-100m)"}],"items":[{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114cm:g039501894:03950_1894-0001__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Cass City, Michigan | 1894 | sanborn03950_001 p1 [1]","metadata":[{"label":"streets","value":"5"},{"label":"intersections","value":"6"},{"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":"2026-09-20T18:00:24Z","modified":"2026-09-20T18:00:24Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114cm:g039501894:03950_1894-0001__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114cm:g039501894:03950_1894-0001","type":"ImageService3","width":1628,"height":1927},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1151.6,0.0 1145.2,726.0 65.5,718.3 0.0,718.3 -0.0,1927.0 131.6,1927.0 131.5,1851.8 1319.2,1852.0 1319.3,1927.0 1384.0,1927.0 1384.2,1852.3 1510.2,1853.2 1516.1,526.0 1628.0,526.5 1628.0,0.0 1151.6,0.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114cm:g039501894:03950_1894-0001__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[529.0,1300.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-83.1771101,43.6008486]}},{"type":"Feature","properties":{"resourceCoords":[1013.0,1850.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-83.1758227,43.5998255]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114cm:g039501894:03950_1894-0001__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Cass City, Michigan | 1894 | sanborn03950_001 p1 [2]","metadata":[{"label":"streets","value":"4"},{"label":"intersections","value":"4"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"4606.4"},{"label":"split_canvas_h","value":"2904.0"}],"created":"2026-09-20T18:00:24Z","modified":"2026-09-20T18:00:24Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114cm:g039501894:03950_1894-0001__2/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114cm:g039501894:03950_1894-0001","type":"ImageService3","width":1628,"height":1927},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"-0.0,48.1 0.0,718.3 65.5,718.3 1145.2,726.0 1151.2,49.8 -0.0,48.1\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114cm:g039501894:03950_1894-0001__2/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[854.7,48.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-83.1758227,43.5998255]}},{"type":"Feature","properties":{"resourceCoords":[387.9,48.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-83.1770768,43.5998074]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114cm:g039501894:03950_1894-0002__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Cass City, Michigan | 1894 | sanborn03950_001 p2 [1]","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"8"},{"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":"2026-09-20T18:00:24Z","modified":"2026-09-20T18:00:24Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114cm:g039501894:03950_1894-0002__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114cm:g039501894:03950_1894-0002","type":"ImageService3","width":1628,"height":1927},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"654.0,1927.0 658.5,1591.9 662.5,1345.5 889.0,1341.8 1146.6,1337.5 1628.0,1330.5 1628.0,0.0 126.2,0.0 125.2,1318.5 -0.0,1318.1 -0.0,1927.0 654.0,1927.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114cm:g039501894:03950_1894-0002__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[629.0,1311.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-83.1732065,43.5998655]}},{"type":"Feature","properties":{"resourceCoords":[1572.0,192.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-83.1707775,43.6020225]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114cm:g039501894:03950_1894-0002__3/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Cass City, Michigan | 1894 | sanborn03950_001 p2 [3]","metadata":[{"label":"streets","value":"2"},{"label":"intersections","value":"1"},{"label":"split_canvas_x","value":"3546.8"},{"label":"split_canvas_y","value":"5350.0"},{"label":"split_canvas_w","value":"1047.2"},{"label":"split_canvas_h","value":"2358.0"}],"created":"2026-09-20T18:00:24Z","modified":"2026-09-20T18:00:24Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114cm:g039501894:03950_1894-0002__3/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114cm:g039501894:03950_1894-0002","type":"ImageService3","width":1628,"height":1927},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1148.5,1927.0 1146.6,1337.6 1146.6,1337.5 889.0,1341.8 887.9,1589.9 886.7,1927.0 1148.5,1927.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114cm:g039501894:03950_1894-0002__3/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[886.7,1337.5],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.16962235245809,43.60154699087997]}},{"type":"Feature","properties":{"resourceCoords":[1148.5,1337.5],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.16893557142264,43.60156195534201]}},{"type":"Feature","properties":{"resourceCoords":[1148.5,1927.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.16888915453087,43.60043914917737]}},{"type":"Feature","properties":{"resourceCoords":[886.7,1927.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.16957593556633,43.60042418471533]}},{"type":"Feature","properties":{"resourceCoords":[926.7,1623.2],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-83.169495,43.601005]}}]}}]}