{"id":"https://data.mapsnap.org/runs/v2.0/iiif/chronoscope/sanborn07619_003.main.iiif.json","type":"AnnotationPage","@context":["http://www.w3.org/ns/anno.jsonld"],"label":"Delta, Pennsylvania | 1904 | mapsnap generated fit (2026-10-22)","creator":{"type":"Software","name":"mapsnap","homepage":"https://mapsnap.org"},"rights":"https://opendatacommons.org/licenses/odbl/1-0/","metadata":[{"label":"generated","value":"2026-10-22"},{"label":"run","value":"corpus-v2.1"},{"label":"pages","value":"8"},{"label":"placed","value":"1"},{"label":"unplaced","value":"7"},{"label":"fit sources","value":"georef 1"},{"label":"key map","value":"none"},{"label":"split sheets","value":"3 sheet(s) cut into 8 panels"},{"label":"unplaced pages","value":"p1__1 (tier 1, 39.72901,-76.32171 +/-195m); p1__2 (tier 4, 39.72774,-76.32518 +/-100m); p1__3 (tier 4, 39.72774,-76.32518 +/-100m); p1__4 (tier 4, 39.72774,-76.32518 +/-100m); p2__1 (tier 4, 39.72774,-76.32518 +/-100m); p3__1 (tier 4, 39.72774,-76.32518 +/-100m); p3__2 (tier 4, 39.72774,-76.32518 +/-100m)"}],"items":[{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824dm:g3824dm_g076191904:07619_1904-0002__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Delta, Pennsylvania | 1904 | sanborn07619_003 p2 [2]","metadata":[{"label":"streets","value":"3"},{"label":"intersections","value":"2"},{"label":"confidence","value":"0.40"},{"label":"confidence_provisional","value":"true"},{"label":"confidence_model","value":"corpus-v2"},{"label":"split_canvas_x","value":"3154.0"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"3298.0"},{"label":"split_canvas_h","value":"7652.0"}],"created":"2026-10-22T13:53:36Z","modified":"2026-10-22T13:53:36Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824dm:g3824dm_g076191904:07619_1904-0002__2/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824dm:g3824dm_g076191904:07619_1904-0002","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1063.2,1851.7 1514.3,1841.5 1553.1,164.2 1488.2,96.5 986.7,82.0 886.8,140.1 852.5,355.3 885.5,996.5 993.8,1121.2 854.3,1677.5 1063.2,1851.7\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824dm:g3824dm_g076191904:07619_1904-0002__2/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1205.2,846.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-76.3249642,39.7278119]}},{"type":"Feature","properties":{"resourceCoords":[1205.2,1010.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-76.3252864,39.7276901]}}]}}]}