{"id":"https://data.mapsnap.org/runs/v1.3/iiif/loc/sanborn01500_004.keymap.iiif.json","type":"AnnotationPage","@context":["http://www.w3.org/ns/anno.jsonld"],"label":"Savannah, Georgia | 1916 | 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:gmd392m:g3924m:g3924sm:g3924sm_g01500191601:01500_01_1916-0000/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Savannah, Georgia | 1916 | sanborn01500_004 p0","metadata":[{"label":"streets","value":"96"},{"label":"intersections","value":"596"}],"created":"2026-09-22T00:47:21Z","modified":"2026-09-22T00:47:21Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd392m:g3924m:g3924sm:g3924sm_g01500191601:01500_01_1916-0000/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd392m:g3924m:g3924sm:g3924sm_g01500191601:01500_01_1916-0000/info.json","type":"ImageService2","height":7680,"width":6532},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"6532.0,7680.0 -0.0,7680.0 -0.0,-0.0 6532.0,0.0 6532.0,6092.8 6532.0,6248.9 6532.0,7235.6 6532.0,7254.5 6532.0,7403.6 6532.0,7545.5 6532.0,7680.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd392m:g3924m:g3924sm:g3924sm_g01500191601:01500_01_1916-0000/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[3273.0,5616.2],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-81.0956371,32.0767775]}},{"type":"Feature","properties":{"resourceCoords":[4206.3,5397.1],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-81.0850856,32.0760781]}}]}}]}