{"id":"https://data.mapsnap.org/runs/v1.3/iiif/chronoscope/sanborn03376_013.keymap.iiif.json","type":"AnnotationPage","@context":["http://www.w3.org/ns/anno.jsonld"],"label":"New Orleans, Louisiana | 1909 | 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:gmd401m:g4014m:g4014nm:g03376190905:03376_05_1909-0000/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"New Orleans, Louisiana | 1909 | sanborn03376_013 p0","metadata":[{"label":"streets","value":"52"},{"label":"intersections","value":"357"}],"created":"2026-09-21T11:18:52Z","modified":"2026-09-21T11:18:52Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014nm:g03376190905:03376_05_1909-0000/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014nm:g03376190905:03376_05_1909-0000","type":"ImageService3","width":1388,"height":2038},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"-0.0,-0.0 603.0,0.0 691.3,0.0 797.6,0.0 876.8,0.0 907.4,0.0 1236.1,0.0 1288.6,0.0 1388.0,0.0 1388.0,443.5 1388.0,515.9 1388.0,621.6 1388.0,886.5 1388.0,1120.8 1388.0,1234.7 1388.0,1733.6 1388.0,1756.9 1388.0,1764.6 1388.0,1773.5 1388.0,2038.0 -0.0,2038.0 -0.0,-0.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014nm:g03376190905:03376_05_1909-0000/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[988.8,637.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-90.1068893,29.942539]}},{"type":"Feature","properties":{"resourceCoords":[1125.8,1667.9],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-90.091492,29.919044]}}]}}]}