{"id":"https://data.mapsnap.org/runs/v1.3/iiif/loc/sanborn09342_005.keymap.iiif.json","type":"AnnotationPage","@context":["http://www.w3.org/ns/anno.jsonld"],"label":"Sumas, Washington | 1932 | key map | mapsnap generated fit (2026-09-24)","creator":{"type":"Software","name":"mapsnap","homepage":"https://mapsnap.org"},"rights":"https://opendatacommons.org/licenses/odbl/1-0/","metadata":[{"label":"generated","value":"2026-09-24"},{"label":"run","value":"corpus-v1"}],"items":[{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd428m:g4284m:g4284sm:g4284sm_g093421932:09342_1932-0001__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Sumas, Washington | 1932 | sanborn09342_005 p1 [2]","metadata":[{"label":"streets","value":"19"},{"label":"intersections","value":"62"},{"label":"split_canvas_x","value":"3286.2"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"3592.2"},{"label":"split_canvas_h","value":"8074.1"}],"created":"2026-09-24T00:07:21Z","modified":"2026-09-24T00:07:21Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd428m:g4284m:g4284sm:g4284sm_g093421932:09342_1932-0001__2/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd428m:g4284m:g4284sm:g4284sm_g093421932:09342_1932-0001/info.json","type":"ImageService2","height":7652,"width":6452},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"6878.4,8074.1 6878.4,0.0 3286.3,0.0 3286.2,0.0 3300.5,2925.2 3311.3,4984.5 3719.9,5955.1 3618.7,8074.1 6878.4,8074.1\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd428m:g4284m:g4284sm:g4284sm_g093421932:09342_1932-0001__2/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[4759.4,993.2],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-122.2603623,48.9991404]}},{"type":"Feature","properties":{"resourceCoords":[4423.5,1659.2],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-122.2628328,48.9954531]}}]}}]}