{"id":"https://data.mapsnap.org/runs/v1.3/iiif/loc/sanborn03914_004.keymap.iiif.json","type":"AnnotationPage","@context":["http://www.w3.org/ns/anno.jsonld"],"label":"Bad Axe, Michigan | 1922 | key map | 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"}],"items":[{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114bm:g039141922:03914_1922-0001__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Bad Axe, Michigan | 1922 | sanborn03914_004 p1 [1]","metadata":[{"label":"streets","value":"24"},{"label":"intersections","value":"53"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"6938.1"},{"label":"split_canvas_h","value":"8129.9"}],"created":"2026-09-22T02:29:40Z","modified":"2026-09-22T02:29:40Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114bm:g039141922:03914_1922-0001__1/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114bm:g039141922:03914_1922-0001/info.json","type":"ImageService2","height":7708,"width":6512},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"6938.1,0.0 -0.0,-0.0 0.0,3257.8 225.9,3257.8 1966.2,3282.8 2027.4,8129.9 4328.3,8129.9 4328.3,7053.8 6938.1,7053.2 6938.1,0.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114bm:g039141922:03914_1922-0001__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1968.5,1783.8],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-82.9974303,43.8016826]}},{"type":"Feature","properties":{"resourceCoords":[651.2,1665.6],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-83.007423,43.801912]}}]}}]}