{"id":"https://data.mapsnap.org/runs/v1.3/iiif/loc/sanborn09157_007.keymap.iiif.json","type":"AnnotationPage","@context":["http://www.w3.org/ns/anno.jsonld"],"label":"Davenport, Washington | 1933 | key map | mapsnap generated fit (2026-09-20)","creator":{"type":"Software","name":"mapsnap","homepage":"https://mapsnap.org"},"rights":"https://opendatacommons.org/licenses/odbl/1-0/","metadata":[{"label":"generated","value":"2026-09-20"},{"label":"run","value":"corpus-v1"}],"items":[{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd428m:g4284m:g4284dm:g4284dm_g091571933:09157_1933-0001__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Davenport, Washington | 1933 | sanborn09157_007 p1 [2]","metadata":[{"label":"streets","value":"7"},{"label":"intersections","value":"5"},{"label":"split_canvas_x","value":"4457.1"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"2421.4"},{"label":"split_canvas_h","value":"8074.1"}],"created":"2026-09-20T23:56:55Z","modified":"2026-09-20T23:56:55Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd428m:g4284m:g4284dm:g4284dm_g091571933:09157_1933-0001__2/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd428m:g4284m:g4284dm:g4284dm_g091571933:09157_1933-0001/info.json","type":"ImageService2","height":7652,"width":6452},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"6878.4,8074.1 6878.4,0.0 4460.6,0.0 4457.9,6147.3 4457.1,8029.8 4457.1,8074.1 6878.4,8074.1\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd428m:g4284m:g4284dm:g4284dm_g091571933:09157_1933-0001__2/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[5698.7,2544.7],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-118.1498021,47.6564884]}},{"type":"Feature","properties":{"resourceCoords":[5698.7,2638.6],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-118.1497904,47.6556955]}}]}}]}