{"id":"https://data.mapsnap.org/runs/v1.3/iiif/loc/sanborn09315_010.keymap.iiif.json","type":"AnnotationPage","@context":["http://www.w3.org/ns/anno.jsonld"],"label":"Seattle, Washington | 1949 | 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_g09315194902:09315_02_1949-0000a/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Seattle, Washington | 1949 | sanborn09315_010 p0a","metadata":[{"label":"streets","value":"97"},{"label":"intersections","value":"574"}],"created":"2026-09-21T09:43:23Z","modified":"2026-09-21T09:43:23Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd428m:g4284m:g4284sm:g4284sm_g09315194902:09315_02_1949-0000a/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd428m:g4284m:g4284sm:g4284sm_g09315194902:09315_02_1949-0000a/info.json","type":"ImageService2","height":8268,"width":5544},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"5544.0,0.0 5544.0,3400.5 5530.6,3408.4 5544.0,3424.7 5544.0,3638.3 5516.3,4498.0 5544.0,4498.4 5544.0,4825.3 5506.4,4824.7 5482.2,5619.1 5544.0,5620.0 5544.0,8268.0 -0.0,8268.0 0.0,0.0 5544.0,0.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd428m:g4284m:g4284sm:g4284sm_g09315194902:09315_02_1949-0000a/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[2934.5,7627.9],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-122.3341972,47.59029]}},{"type":"Feature","properties":{"resourceCoords":[1567.3,1538.2],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-122.3462437,47.6244777]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd428m:g4284m:g4284sm:g4284sm_g09315194902:09315_02_1949-0000b__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Seattle, Washington | 1949 | sanborn09315_010 p0b [1]","metadata":[{"label":"streets","value":"86"},{"label":"intersections","value":"483"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"5975.1"},{"label":"split_canvas_h","value":"8688.4"}],"created":"2026-09-21T09:43:23Z","modified":"2026-09-21T09:43:23Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd428m:g4284m:g4284sm:g4284sm_g09315194902:09315_02_1949-0000b__1/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd428m:g4284m:g4284sm:g4284sm_g09315194902:09315_02_1949-0000b/info.json","type":"ImageService2","height":8268,"width":5544},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"159.2,8501.6 156.4,8688.4 4561.9,8688.4 4573.1,8245.0 4691.3,5781.8 5477.2,5779.5 5975.1,5778.7 5975.1,1412.5 5975.1,0.0 0.0,0.0 -0.0,4682.6 30.6,4682.5 41.5,5031.2 -0.0,5031.3 -0.0,5879.2 68.2,5879.0 150.6,8501.6 159.2,8501.6\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd428m:g4284m:g4284sm:g4284sm_g09315194902:09315_02_1949-0000b__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1822.8,7559.6],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-122.3001198,47.59295]}},{"type":"Feature","properties":{"resourceCoords":[3744.8,4206.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-122.2853721,47.610396]}}]}}]}