{"id":"https://data.mapsnap.org/runs/v1.3/iiif/chronoscope/sanborn07170_006.keymap.iiif.json","type":"AnnotationPage","@context":["http://www.w3.org/ns/anno.jsonld"],"label":"Marlow, Oklahoma | 1922 | 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://cdn.chronoscope.io/mapsnap/service:gmd:gmd402m:g4024m:g4024mm:g4024mm_g071701922:07170_1922-0001__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Marlow, Oklahoma | 1922 | sanborn07170_006 p1 [2]","metadata":[{"label":"streets","value":"19"},{"label":"intersections","value":"62"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"6878.4"},{"label":"split_canvas_h","value":"8074.1"}],"created":"2026-09-22T15:38:01Z","modified":"2026-09-22T15:38:01Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd402m:g4024m:g4024mm:g4024mm_g071701922:07170_1922-0001__2/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd402m:g4024m:g4024mm:g4024mm_g071701922:07170_1922-0001","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1613,1913 1613,0.0 0.0,0.0 0.0,934.4 924.4,936.8 927.7,1637.0 1409.5,1637.7 1407.4,1913 1613,1913\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd402m:g4024m:g4024mm:g4024mm_g071701922:07170_1922-0001__2/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[520.4,476.5],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-97.9578343,34.6488425]}},{"type":"Feature","properties":{"resourceCoords":[571.1,623.2],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-97.9563754,34.6452323]}}]}}]}