{"id":"https://data.mapsnap.org/runs/v2.0/iiif/chronoscope/sanborn09209_008.keymap.iiif.json","type":"AnnotationPage","@context":["http://www.w3.org/ns/anno.jsonld"],"label":"Kelso, Washington | 1949 | key map | mapsnap generated fit (2026-10-19)","creator":{"type":"Software","name":"mapsnap","homepage":"https://mapsnap.org"},"rights":"https://opendatacommons.org/licenses/odbl/1-0/","metadata":[{"label":"generated","value":"2026-10-19"},{"label":"run","value":"corpus-v2"}],"items":[{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284km:g4284km_g092091949:09209_1949-0001a/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Kelso, Washington | 1949 | sanborn09209_008 p1a","metadata":[{"label":"streets","value":"62"},{"label":"intersections","value":"198"}],"created":"2026-10-19T13:39:12Z","modified":"2026-10-19T13:39:12Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284km:g4284km_g092091949:09209_1949-0001a/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284km:g4284km_g092091949:09209_1949-0001a","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"0.0,1913.0 0.0,0.0 1613.0,0.0 1613.0,1913.0 0.0,1913.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284km:g4284km_g092091949:09209_1949-0001a/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[691.2,703.7],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-122.9125639,46.1415048]}},{"type":"Feature","properties":{"resourceCoords":[691.2,814.7],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-122.913412,46.1390976]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284km:g4284km_g092091949:09209_1949-0001b/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Kelso, Washington | 1949 | sanborn09209_008 p1b","metadata":[{"label":"streets","value":"62"},{"label":"intersections","value":"180"}],"created":"2026-10-19T13:39:12Z","modified":"2026-10-19T13:39:12Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284km:g4284km_g092091949:09209_1949-0001b/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284km:g4284km_g092091949:09209_1949-0001b","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"0.0,1913.0 0.0,0.0 1613.0,0.0 1613.0,1913.0 0.0,1913.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284km:g4284km_g092091949:09209_1949-0001b/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[627.5,77.3],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-122.9101046,46.1557612]}},{"type":"Feature","properties":{"resourceCoords":[785.8,975.5],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-122.9117156,46.1350553]}}]}}]}