{"id":"https://data.mapsnap.org/runs/v1.3/iiif/loc/sanborn02319_005.keymap.iiif.json","type":"AnnotationPage","@context":["http://www.w3.org/ns/anno.jsonld"],"label":"Dunkirk, Indiana | 1915 | key map | mapsnap generated fit (2026-09-23)","creator":{"type":"Software","name":"mapsnap","homepage":"https://mapsnap.org"},"rights":"https://opendatacommons.org/licenses/odbl/1-0/","metadata":[{"label":"generated","value":"2026-09-23"},{"label":"run","value":"corpus-v1"}],"items":[{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd409m:g4094m:g4094dm:g4094dm_g023191915:02319_1915-0001__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Dunkirk, Indiana | 1915 | sanborn02319_005 p1 [1]","metadata":[{"label":"streets","value":"30"},{"label":"intersections","value":"69"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"6878.4"},{"label":"split_canvas_h","value":"4022.1"}],"created":"2026-09-23T15:13:52Z","modified":"2026-09-23T15:13:52Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd409m:g4094m:g4094dm:g4094dm_g023191915:02319_1915-0001__1/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd409m:g4094m:g4094dm:g4094dm_g023191915:02319_1915-0001/info.json","type":"ImageService2","height":7652,"width":6452},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"0.0,3967.3 6878.4,4022.1 6878.4,0.0 -0.0,-0.0 0.0,3967.3\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd409m:g4094m:g4094dm:g4094dm_g023191915:02319_1915-0001__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[763.6,1581.4],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-85.2162317,40.3748953]}},{"type":"Feature","properties":{"resourceCoords":[2079.5,1545.4],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-85.2083632,40.3750732]}}]}}]}