{"id":"https://data.mapsnap.org/runs/v1.3/iiif/loc/sanborn07619_001.main.iiif.json","type":"AnnotationPage","@context":["http://www.w3.org/ns/anno.jsonld"],"label":"Delta, Pennsylvania | 1894 | 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"},{"label":"pages","value":"6"},{"label":"placed","value":"1"},{"label":"unplaced","value":"5"},{"label":"fit sources","value":"georef 2"},{"label":"key map","value":"none"},{"label":"split sheets","value":"2 sheet(s) cut into 6 panels"},{"label":"unplaced pages","value":"p1__2 (tier 4, 39.73318,-76.51380 +/-16156m); p2__1 (tier 4, 39.73318,-76.51380 +/-16156m); p2__2 (tier 4, 39.73318,-76.51380 +/-16156m); p2__3 (tier 4, 39.73318,-76.51380 +/-16156m)"},{"label":"withheld","value":"p1__3 (32.1 km from the catalogue location)"}],"items":[{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824dm:g3824dm_g076191894:07619_1894-0001__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Delta, Pennsylvania | 1894 | sanborn07619_001 p1 [1]","metadata":[{"label":"streets","value":"3"},{"label":"intersections","value":"2"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"3301.6"},{"label":"split_canvas_h","value":"7652.0"}],"created":"2026-09-21T10:44:03Z","modified":"2026-09-21T10:44:03Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824dm:g3824dm_g076191894:07619_1894-0001__1/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824dm:g3824dm_g076191894:07619_1894-0001/info.json","type":"ImageService2","height":7652,"width":6452},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"0.0,0.0 -0.0,7652.0 2788.0,7652.0 3301.6,7652.0 3298.0,2130.4 3296.8,0.0 0.0,0.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824dm:g3824dm_g076191894:07619_1894-0001__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1716.8,3324.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-76.3249642,39.7278119]}},{"type":"Feature","properties":{"resourceCoords":[1716.8,4012.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-76.3252864,39.7276901]}}]}}]}