{"id":"https://data.mapsnap.org/runs/v1.3/iiif/loc/sanborn05363_006.keymap.iiif.json","type":"AnnotationPage","@context":["http://www.w3.org/ns/anno.jsonld"],"label":"Nashua, New-Hampshire | 1949 | key map | mapsnap generated fit (2026-09-21)","creator":{"type":"Software","name":"mapsnap","homepage":"https://mapsnap.org"},"rights":"https://opendatacommons.org/licenses/odbl/1-0/","metadata":[{"label":"generated","value":"2026-09-21"},{"label":"run","value":"corpus-v1"}],"items":[{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd374m:g3744m:g3744nm:g3744nm_g053631949:05363_1949-0000/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Nashua, New-Hampshire | 1949 | sanborn05363_006 p0","metadata":[{"label":"streets","value":"256"},{"label":"intersections","value":"369"}],"created":"2026-09-21T19:00:37Z","modified":"2026-09-21T19:00:37Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd374m:g3744m:g3744nm:g3744nm_g053631949:05363_1949-0000/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd374m:g3744m:g3744nm:g3744nm_g053631949:05363_1949-0000/info.json","type":"ImageService2","height":7796,"width":6676},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"-0.0,7796.0 0.0,0.0 6676.0,0.0 6676.0,7796.0 -0.0,7796.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd374m:g3744m:g3744nm:g3744nm_g053631949:05363_1949-0000/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[2248.0,3900.5],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.4687947,42.7566646]}},{"type":"Feature","properties":{"resourceCoords":[2129.0,4488.6],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.4678271,42.752449]}}]}}]}