{"id":"https://data.mapsnap.org/runs/v1.3/iiif/loc/sanborn03376_016.keymap.iiif.json","type":"AnnotationPage","@context":["http://www.w3.org/ns/anno.jsonld"],"label":"New Orleans, Louisiana | 1937 | 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://tile.loc.gov/image-services/iiif/service:gmd:gmd401m:g4014m:g4014nm:g03376193701:03376_01_1937-0000/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 | 1937 | sanborn03376_016 p0","metadata":[{"label":"streets","value":"59"},{"label":"intersections","value":"226"}],"created":"2026-09-21T16:04:27Z","modified":"2026-09-21T16:04:27Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd401m:g4014m:g4014nm:g03376193701:03376_01_1937-0000/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd401m:g4014m:g4014nm:g03376193701:03376_01_1937-0000/info.json","type":"ImageService2","height":8152,"width":5484},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"-0.0,8150.4 -0.0,8119.6 -0.0,7339.5 -0.0,5687.5 -0.0,5599.0 -0.0,5407.1 -0.0,4516.5 -0.0,3927.6 -0.0,3914.2 -0.0,3684.8 -0.0,3568.5 -0.0,3514.3 -0.0,3392.0 -0.0,3346.3 -0.0,3172.9 -0.0,3043.4 -0.0,2726.8 -0.0,2614.5 -0.0,0.0 5484.0,0.0 5484.0,8152.0 -0.0,8150.4\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd401m:g4014m:g4014nm:g03376193701:03376_01_1937-0000/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[3004.5,2287.6],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-90.0623466,29.9783947]}},{"type":"Feature","properties":{"resourceCoords":[2627.5,2654.7],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-90.0656049,29.9751413]}}]}}]}