{"id":"https://data.mapsnap.org/runs/v1.3/iiif/chronoscope/sanborn03950_002.main.iiif.json","type":"AnnotationPage","@context":["http://www.w3.org/ns/anno.jsonld"],"label":"Cass City, Michigan | 1900 | mapsnap generated fit (2026-09-22)","creator":{"type":"Software","name":"mapsnap","homepage":"https://mapsnap.org"},"rights":"https://opendatacommons.org/licenses/odbl/1-0/","metadata":[{"label":"generated","value":"2026-09-22"},{"label":"run","value":"corpus-v1"},{"label":"pages","value":"7"},{"label":"placed","value":"5"},{"label":"unplaced","value":"2"},{"label":"fit sources","value":"georef 5"},{"label":"key map","value":"none"},{"label":"split sheets","value":"2 sheet(s) cut into 7 panels"},{"label":"unplaced pages","value":"p2__4 (tier 2, 43.60140,-83.17635 +/-156m); p2__5 (tier 2, 43.60140,-83.17635 +/-156m)"}],"items":[{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114cm:g039501900:03950_1900-0001__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 | 1900 | sanborn03950_002 p1 [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":"2026-09-22T05:52:52Z","modified":"2026-09-22T05:52:52Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114cm:g039501900:03950_1900-0001__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114cm:g039501900:03950_1900-0001","type":"ImageService3","width":1628,"height":1927},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"-0.0,1927.0 117.8,1927.0 117.8,1859.8 1007.2,1858.8 1324.2,1861.2 1324.2,1927.0 1509.7,1927.0 1516.6,542.7 1628.0,542.5 1628.0,0.0 1134.0,0.0 1129.4,735.0 53.1,730.6 0.0,730.6 -0.0,1927.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114cm:g039501900:03950_1900-0001__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[521.0,1859.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-83.1770768,43.5998074]}},{"type":"Feature","properties":{"resourceCoords":[1001.0,213.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-83.1759216,43.6029075]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114cm:g039501900:03950_1900-0001__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 | 1900 | sanborn03950_002 p1 [2]","metadata":[{"label":"streets","value":"3"},{"label":"intersections","value":"2"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"4536.0"},{"label":"split_canvas_h","value":"2940.0"}],"created":"2026-09-22T05:52:52Z","modified":"2026-09-22T05:52:52Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114cm:g039501900:03950_1900-0001__2/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114cm:g039501900:03950_1900-0001","type":"ImageService3","width":1628,"height":1927},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"0.0,730.6 53.1,730.6 1129.4,735.0 1133.7,57.3 -0.0,55.6 0.0,730.6\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114cm:g039501900:03950_1900-0001__2/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[836.0,55.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-83.1758227,43.5998255]}},{"type":"Feature","properties":{"resourceCoords":[379.0,55.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-83.1770768,43.5998074]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114cm:g039501900:03950_1900-0002__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 | 1900 | sanborn03950_002 p2 [1]","metadata":[{"label":"streets","value":"5"},{"label":"intersections","value":"4"},{"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":"2026-09-22T05:52:52Z","modified":"2026-09-22T05:52:52Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114cm:g039501900:03950_1900-0002__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114cm:g039501900:03950_1900-0002","type":"ImageService3","width":1628,"height":1927},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"417.8,1927.0 417.0,1833.1 643.7,1807.0 644.2,1861.8 645.4,1579.8 646.7,1334.1 872.6,1333.1 1132.9,1332.0 1628.0,1330.0 1628.0,0.0 132.6,0.0 122.6,1372.0 -0.0,1371.7 -0.0,1927.0 417.8,1927.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114cm:g039501900:03950_1900-0002__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[629.0,192.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-83.1732721,43.6019666]}},{"type":"Feature","properties":{"resourceCoords":[629.0,1831.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-83.1731791,43.5988697]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114cm:g039501900:03950_1900-0002__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 | 1900 | sanborn03950_002 p2 [2]","metadata":[{"label":"streets","value":"2"},{"label":"intersections","value":"1"},{"label":"split_canvas_x","value":"2581.6"},{"label":"split_canvas_y","value":"5332.4"},{"label":"split_canvas_w","value":"908.8"},{"label":"split_canvas_h","value":"988.0"}],"created":"2026-09-22T05:52:52Z","modified":"2026-09-22T05:52:52Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114cm:g039501900:03950_1900-0002__2/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114cm:g039501900:03950_1900-0002","type":"ImageService3","width":1628,"height":1927},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"646.6,1357.3 645.4,1579.8 872.3,1580.1 872.6,1333.1 646.6,1357.3\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114cm:g039501900:03950_1900-0002__2/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[645.4,1333.1],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.17373272826337,43.59890279018422]}},{"type":"Feature","properties":{"resourceCoords":[872.6,1333.1],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.17314211316973,43.5989156835895]}},{"type":"Feature","properties":{"resourceCoords":[872.6,1580.1],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.17312287366153,43.598451165724086]}},{"type":"Feature","properties":{"resourceCoords":[645.4,1580.1],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.17371348875517,43.5984382723188]}},{"type":"Feature","properties":{"resourceCoords":[857.6,1357.1],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-83.1731791,43.5988697]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114cm:g039501900:03950_1900-0002__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 | 1900 | sanborn03950_002 p2 [3]","metadata":[{"label":"streets","value":"2"},{"label":"intersections","value":"1"},{"label":"split_canvas_x","value":"3488.0"},{"label":"split_canvas_y","value":"5328.0"},{"label":"split_canvas_w","value":"1043.6"},{"label":"split_canvas_h","value":"2380.0"}],"created":"2026-09-22T05:52:52Z","modified":"2026-09-22T05:52:52Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114cm:g039501900:03950_1900-0002__3/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114cm:g039501900:03950_1900-0002","type":"ImageService3","width":1628,"height":1927},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1131.1,1927.0 1132.9,1332.0 872.6,1333.1 872.3,1580.1 872.0,1927.0 1131.1,1927.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114cm:g039501900:03950_1900-0002__3/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[872.0,1332.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.16970595861133,43.60152914586211]}},{"type":"Feature","properties":{"resourceCoords":[1132.9,1332.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.16902997072745,43.601575496162525]}},{"type":"Feature","properties":{"resourceCoords":[1132.9,1927.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.16888473891814,43.60045909660877]}},{"type":"Feature","properties":{"resourceCoords":[872.0,1927.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.16956072680202,43.60041274630836]}},{"type":"Feature","properties":{"resourceCoords":[926.8,1616.5],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-83.169495,43.601005]}}]}}]}