{"id":"https://data.mapsnap.org/runs/v1.3/iiif/loc/sanborn03376_025.keymap.iiif.json","type":"AnnotationPage","@context":["http://www.w3.org/ns/anno.jsonld"],"label":"New Orleans, Louisiana | 1950 | 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:g03376195001A:03376_01A_1950-0000/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 | 1950 | sanborn03376_025 p0","metadata":[{"label":"streets","value":"51"},{"label":"intersections","value":"213"}],"created":"2026-09-21T17:11:31Z","modified":"2026-09-21T17:11:31Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd401m:g4014m:g4014nm:g03376195001A:03376_01A_1950-0000/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd401m:g4014m:g4014nm:g03376195001A:03376_01A_1950-0000/info.json","type":"ImageService2","height":8152,"width":5644},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"0.0,1026.3 0.0,0.0 378.9,0.0 725.1,0.0 1323.1,0.0 5024.2,0.0 5644.0,0.0 5644.0,8152.0 -0.0,8152.0 0.0,1026.3\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd401m:g4014m:g4014nm:g03376195001A:03376_01A_1950-0000/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[963.2,5132.3],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-90.075084,29.942043]}},{"type":"Feature","properties":{"resourceCoords":[4346.8,4067.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-90.0662252,29.9629696]}}]}}]}