{"id":"https://data.mapsnap.org/runs/v1.3/iiif/chronoscope/sanborn01210_003.main.iiif.json","type":"AnnotationPage","@context":["http://www.w3.org/ns/anno.jsonld"],"label":"Frederica, Delaware | 1897 | 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":"4"},{"label":"placed","value":"1"},{"label":"unplaced","value":"3"},{"label":"fit sources","value":"georef 2"},{"label":"key map","value":"none"},{"label":"split sheets","value":"1 sheet(s) cut into 3 panels"},{"label":"unplaced pages","value":"p2__2 (tier 1, 39.00776,-75.47011 +/-100m); p2__3 (tier 1, 39.00839,-75.46580 +/-100m)"},{"label":"withheld","value":"p2__1 (11.0 km from the catalogue location)"}],"items":[{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd383m:g3834m:g3834fm:g012101897:01210_1897-0001/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Frederica, Delaware | 1897 | sanborn01210_003 p1","metadata":[{"label":"streets","value":"4"},{"label":"intersections","value":"6"}],"created":"2026-09-21T20:09:43Z","modified":"2026-09-21T20:09:43Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd383m:g3834m:g3834fm:g012101897:01210_1897-0001/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd383m:g3834m:g3834fm:g012101897:01210_1897-0001","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1613.0,-0.0 1613.0,1913.0 -0.0,1913.0 -0.0,0.0 1613.0,-0.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd383m:g3834m:g3834fm:g012101897:01210_1897-0001/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[816.0,1435.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-75.4657636,39.0085042]}},{"type":"Feature","properties":{"resourceCoords":[816.0,219.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-75.464619,39.0086051]}}]}}]}