{"id":"https://data.mapsnap.org/runs/v1.3/iiif/chronoscope/sanborn03998_005.main.iiif.json","type":"AnnotationPage","@context":["http://www.w3.org/ns/anno.jsonld"],"label":"Elkton, Michigan | 1939 | 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":"4"},{"label":"placed","value":"3"},{"label":"unplaced","value":"1"},{"label":"fit sources","value":"georef 2, georef-snap 1"},{"label":"key map","value":"none"},{"label":"split sheets","value":"1 sheet(s) cut into 3 panels"},{"label":"unplaced pages","value":"p1__3 (tier 1, 43.81876,-83.17887 +/-100m)"}],"items":[{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114em:g039981939:03998_1939-0001__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Elkton, Michigan | 1939 | sanborn03998_005 p1 [1]","metadata":[{"label":"streets","value":"8"},{"label":"intersections","value":"10"},{"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":"2026-09-22T06:44:11Z","modified":"2026-09-22T06:44:11Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114em:g039981939:03998_1939-0001__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114em:g039981939:03998_1939-0001","type":"ImageService3","width":1628,"height":1927},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"965.6,1927.0 965.6,1462.0 1319.0,1470.1 1315.6,1571.8 1628.0,1571.5 1628.0,0.0 1416.1,0.0 1419.7,821.2 1327.2,821.6 1333.1,672.5 911.4,344.4 909.3,921.3 512.9,994.4 0.0,1005.1 -0.0,1927.0 965.6,1927.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114em:g039981939:03998_1939-0001__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[965.0,1030.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-83.179516,43.8182998]}},{"type":"Feature","properties":{"resourceCoords":[1307.0,1030.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-83.1777493,43.818339]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114em:g039981939:03998_1939-0001__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Elkton, Michigan | 1939 | sanborn03998_005 p1 [2]","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":"3649.6"},{"label":"split_canvas_h","value":"4020.4"}],"created":"2026-09-22T06:44:11Z","modified":"2026-09-22T06:44:11Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114em:g039981939:03998_1939-0001__2/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114em:g039981939:03998_1939-0001","type":"ImageService3","width":1628,"height":1927},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"591.2,508.1 582.0,808.8 824.4,852.5 813.3,939.0 909.3,921.3 912.4,53.1 912.4,0.0 -0.0,-0.0 -0.0,1005.1 156.0,1001.9 170.0,511.3 591.2,508.1\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114em:g039981939:03998_1939-0001__2/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[176.1,316.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-83.181037,43.821542]}},{"type":"Feature","properties":{"resourceCoords":[591.2,508.1],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-83.1789085,43.8208966]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114em:g039981939:03998_1939-0002/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Elkton, Michigan | 1939 | sanborn03998_005 p2","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-22T06:44:11Z","modified":"2026-09-22T06:44:11Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114em:g039981939:03998_1939-0002/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114em:g039981939:03998_1939-0002","type":"ImageService3","width":1628,"height":1927},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"274.6,1927.0 -0.0,1927.0 -0.0,1212.1 103.3,39.5 704.9,-0.0 850.0,-0.0 1039.6,-0.0 1498.8,322.5 1501.6,907.8 274.6,1927.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114em:g039981939:03998_1939-0002/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.17881636436381,43.82108992421923]}},{"type":"Feature","properties":{"resourceCoords":[1628.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.17868497729303,43.818079792701894]}},{"type":"Feature","properties":{"resourceCoords":[1628.0,1927.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.18358849788522,43.81796679106719]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1927.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.183719884956,43.82097692258453]}}]}}]}