{"id":"https://data.mapsnap.org/runs/v1.3/iiif/loc/sanborn03920_003.keymap.iiif.json","type":"AnnotationPage","@context":["http://www.w3.org/ns/anno.jsonld"],"label":"Battle Creek, Michigan | 1899 | key map | mapsnap generated fit (2026-09-23)","creator":{"type":"Software","name":"mapsnap","homepage":"https://mapsnap.org"},"rights":"https://opendatacommons.org/licenses/odbl/1-0/","metadata":[{"label":"generated","value":"2026-09-23"},{"label":"run","value":"corpus-v1"}],"items":[{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114bm:g039201899:03920_1899-0001/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Battle Creek, Michigan | 1899 | sanborn03920_003 p1","metadata":[{"label":"streets","value":"107"},{"label":"intersections","value":"143"}],"created":"2026-09-23T07:30:32Z","modified":"2026-09-23T07:30:32Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114bm:g039201899:03920_1899-0001/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114bm:g039201899:03920_1899-0001/info.json","type":"ImageService2","height":7708,"width":6512},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"-0.0,7708.0 -0.0,-0.0 6512.0,0.0 6512.0,1680.8 6512.0,7708.0 -0.0,7708.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114bm:g039201899:03920_1899-0001/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[3561.1,4865.6],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-85.1772427,42.3090646]}},{"type":"Feature","properties":{"resourceCoords":[1500.5,2203.3],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-85.198195,42.328243]}}]}}]}