{"id":"https://data.mapsnap.org/runs/v1.3/iiif/loc/sanborn09049_002.keymap.iiif.json","type":"AnnotationPage","@context":["http://www.w3.org/ns/anno.jsonld"],"label":"Newport News, Virginia | 1889 | 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:gmd388m:g3884m:g3884nm:g3884nm_g090491889:09049_1889-0001__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Newport News, Virginia | 1889 | sanborn09049_002 p1 [2]","metadata":[{"label":"streets","value":"14"},{"label":"intersections","value":"47"},{"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":"8074.1"}],"created":"2026-09-22T07:32:44Z","modified":"2026-09-22T07:32:44Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd388m:g3884m:g3884nm:g3884nm_g090491889:09049_1889-0001__2/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd388m:g3884m:g3884nm:g3884nm_g090491889:09049_1889-0001/info.json","type":"ImageService2","height":7652,"width":6452},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"0.0,5300.1 3904.4,5307.5 3920.1,7606.2 3921.8,8074.1 6878.4,8074.1 6878.4,0.0 0.0,0.0 0.0,5300.1\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd388m:g3884m:g3884nm:g3884nm_g090491889:09049_1889-0001__2/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[3296.3,1633.8],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-76.4218785,36.9827178]}},{"type":"Feature","properties":{"resourceCoords":[1451.4,1956.8],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-76.4303573,36.9777464]}}]}}]}