{"id":"https://data.mapsnap.org/runs/v1.3/iiif/loc/sanborn09130_004.keymap.iiif.json","type":"AnnotationPage","@context":["http://www.w3.org/ns/anno.jsonld"],"label":"Centralia, Washington | 1891 | key map | mapsnap generated fit (2026-09-22)","creator":{"type":"Software","name":"mapsnap","homepage":"https://mapsnap.org"},"rights":"https://opendatacommons.org/licenses/odbl/1-0/","metadata":[{"label":"generated","value":"2026-09-22"},{"label":"run","value":"corpus-v1"}],"items":[{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd428m:g4284m:g4284cm:g4284cm_g091301891:09130_1891-0000/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Centralia, Washington | 1891 | sanborn09130_004 p0","metadata":[{"label":"streets","value":"31"},{"label":"intersections","value":"126"}],"created":"2026-09-22T16:31:12Z","modified":"2026-09-22T16:31:12Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd428m:g4284m:g4284cm:g4284cm_g091301891:09130_1891-0000/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd428m:g4284m:g4284cm:g4284cm_g091301891:09130_1891-0000/info.json","type":"ImageService2","height":7652,"width":6452},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"6452.0,7652.0 -0.0,7652.0 0.0,-0.0 6452.0,0.0 6452.0,7652.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd428m:g4284m:g4284cm:g4284cm_g091301891:09130_1891-0000/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[2158.7,6292.6],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-122.9564203,46.7144722]}},{"type":"Feature","properties":{"resourceCoords":[2158.7,4675.2],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-122.9536181,46.7216649]}}]}}]}