{"id":"https://data.mapsnap.org/runs/v1.3/iiif/chronoscope/sanborn00294_006.keymap.iiif.json","type":"AnnotationPage","@context":["http://www.w3.org/ns/anno.jsonld"],"label":"Magnolia, Arkansas | 1912 | 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:gmd400m:g4004m:g4004mm:g002941912:00294_1912-0001__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Magnolia, Arkansas | 1912 | sanborn00294_006 p1 [1]","metadata":[{"label":"streets","value":"14"},{"label":"intersections","value":"46"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"9019.5"},{"label":"split_canvas_h","value":"10616.3"}],"created":"2026-09-22T07:42:31Z","modified":"2026-09-22T07:42:31Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd400m:g4004m:g4004mm:g002941912:00294_1912-0001__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd400m:g4004m:g4004mm:g002941912:00294_1912-0001","type":"ImageService3","width":2150,"height":2550},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"2150,2550 2150,0.0 1431.7,0.0 1431.2,1806.8 0.0,1806.8 0.0,2550 2150,2550\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd400m:g4004m:g4004mm:g002941912:00294_1912-0001__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1963.0,659.6],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-93.2382826,33.2670509]}},{"type":"Feature","properties":{"resourceCoords":[1530.4,661.7],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-93.2478182,33.2672602]}}]}}]}