{"id":"https://data.mapsnap.org/runs/v1.3/iiif/loc/sanborn01111_006.keymap.iiif.json","type":"AnnotationPage","@context":["http://www.w3.org/ns/anno.jsonld"],"label":"Collinsville, Connecticut | 1960 | 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:gmd378m:g3784m:g3784cm:g3784cm_g011111960:01111_1960-0001a/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Collinsville, Connecticut | 1960 | sanborn01111_006 p1a","metadata":[{"label":"streets","value":"13"},{"label":"intersections","value":"14"}],"created":"2026-09-23T02:51:47Z","modified":"2026-09-23T02:51:47Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd378m:g3784m:g3784cm:g3784cm_g011111960:01111_1960-0001a/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd378m:g3784m:g3784cm:g3784cm_g011111960:01111_1960-0001a/info.json","type":"ImageService2","height":7652,"width":6452},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"-0.0,7652.0 0.0,0.0 2676.5,0.0 3120.5,0.0 6452.0,0.0 6452.0,2336.6 6452.0,3214.3 6452.0,7652.0 -0.0,7652.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd378m:g3784m:g3784cm:g3784cm_g011111960:01111_1960-0001a/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1890.6,2187.6],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.9196325,41.8116772]}},{"type":"Feature","properties":{"resourceCoords":[1454.5,487.1],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.9203324,41.8235311]}}]}}]}