{"id":"https://data.mapsnap.org/runs/v1.3/iiif/chronoscope/sanborn08348_024.keymap.iiif.json","type":"AnnotationPage","@context":["http://www.w3.org/ns/anno.jsonld"],"label":"Memphis, Tennessee | 1952 | 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://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964mm:g3964mm_g08348195204:08348_04_1952-0000__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Memphis, Tennessee | 1952 | sanborn08348_024 p0 [2]","metadata":[{"label":"streets","value":"74"},{"label":"intersections","value":"364"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"7085.6"},{"label":"split_canvas_h","value":"8520.8"}],"created":"2026-09-21T18:38:35Z","modified":"2026-09-21T18:38:35Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964mm:g3964mm_g08348195204:08348_04_1952-0000__2/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964mm:g3964mm_g08348195204:08348_04_1952-0000","type":"ImageService3","width":1665,"height":2025},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1665,2025 1665,0.0 -0.0,0.0 0.0,190.5 68.0,190.5 147.7,2025 1665,2025\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964mm:g3964mm_g08348195204:08348_04_1952-0000__2/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1041.5,1797.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-89.9966606,35.139153]}},{"type":"Feature","properties":{"resourceCoords":[368.4,1140.6],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-90.0172661,35.159937]}}]}}]}