{"id":"https://data.mapsnap.org/runs/v1.3/iiif/loc/sanborn09331_015.keymap.iiif.json","type":"AnnotationPage","@context":["http://www.w3.org/ns/anno.jsonld"],"label":"Spokane, Washington | 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:gmd428m:g4284m:g4284sm:g4284sm_g09331195004:09331_04_1950-0000/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Spokane, Washington | 1950 | sanborn09331_015 p0","metadata":[{"label":"streets","value":"114"},{"label":"intersections","value":"908"}],"created":"2026-09-21T05:57:08Z","modified":"2026-09-21T05:57:08Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd428m:g4284m:g4284sm:g4284sm_g09331195004:09331_04_1950-0000/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd428m:g4284m:g4284sm:g4284sm_g09331195004:09331_04_1950-0000/info.json","type":"ImageService2","height":8152,"width":5644},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"5644.0,8152.0 -0.0,8152.0 -0.0,8137.6 -0.0,7965.7 -0.0,7515.5 -0.0,7468.5 -0.0,7285.0 -0.0,6518.8 -0.0,6337.9 -0.0,4595.6 -0.0,3886.7 -0.0,3230.2 0.0,1946.1 0.0,1409.7 0.0,1109.3 0.0,1109.3 0.0,182.6 0.0,0.0 5644.0,-0.0 5644.0,8152.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd428m:g4284m:g4284sm:g4284sm_g09331195004:09331_04_1950-0000/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[2628.9,5937.2],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-117.4045321,47.6499411]}},{"type":"Feature","properties":{"resourceCoords":[1786.6,3036.1],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-117.3856961,47.667539]}}]}}]}