{"id":"https://data.mapsnap.org/runs/v2.0/iiif/chronoscope/sanborn07809_002.main.iiif.json","type":"AnnotationPage","@context":["http://www.w3.org/ns/anno.jsonld"],"label":"Mercer, Pennsylvania | 1891 | mapsnap generated fit (2026-10-18)","creator":{"type":"Software","name":"mapsnap","homepage":"https://mapsnap.org"},"rights":"https://opendatacommons.org/licenses/odbl/1-0/","metadata":[{"label":"generated","value":"2026-10-18"},{"label":"run","value":"corpus-v2"},{"label":"pages","value":"7"},{"label":"placed","value":"3"},{"label":"unplaced","value":"4"},{"label":"fit sources","value":"georef 2, georef-snap 1"},{"label":"key map","value":"none"},{"label":"split sheets","value":"2 sheet(s) cut into 6 panels"},{"label":"unplaced pages","value":"p1__1 (tier 4, 41.22632,-80.23879 +/-270m); p1__2 (tier 1, 41.22439,-80.22982 +/-161m); p1__4 (tier 4, 41.22632,-80.23879 +/-270m); p3__2 (tier 4, 41.22632,-80.23879 +/-270m)"}],"items":[{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824mm:g3824mm_g078091891:07809_1891-0001__3/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Mercer, Pennsylvania | 1891 | sanborn07809_002 p1 [3]","metadata":[{"label":"streets","value":"3"},{"label":"intersections","value":"2"},{"label":"confidence","value":"0.13"},{"label":"confidence_provisional","value":"true"},{"label":"confidence_model","value":"corpus-v2"},{"label":"split_canvas_x","value":"2970.8"},{"label":"split_canvas_y","value":"2830.4"},{"label":"split_canvas_w","value":"3481.2"},{"label":"split_canvas_h","value":"2651.6"}],"created":"2026-10-18T07:43:40Z","modified":"2026-10-18T07:43:40Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824mm:g3824mm_g078091891:07809_1891-0001__3/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824mm:g3824mm_g078091891:07809_1891-0001","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"743.7,823.1 743.9,839.1 743.9,839.5 777.9,849.3 770.0,1347.5 1528.3,1325.0 1582.3,750.2 1545.7,739.2 1547.1,788.6 1288.7,792.3 743.5,794.1 743.7,823.1\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824mm:g3824mm_g078091891:07809_1891-0001__3/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1547.0,1247.5],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.2357229,41.2245649]}},{"type":"Feature","properties":{"resourceCoords":[1547.0,788.6],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.2357236,41.2253726]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824mm:g3824mm_g078091891:07809_1891-0002/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Mercer, Pennsylvania | 1891 | sanborn07809_002 p2","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.80"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T07:43:40Z","modified":"2026-10-18T07:43:40Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824mm:g3824mm_g078091891:07809_1891-0002/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824mm:g3824mm_g078091891:07809_1891-0002","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"871.9,1870.0 100.2,1883.7 40.0,1842.0 18.6,1877.3 17.6,1832.6 20.4,1111.0 16.8,827.6 28.1,331.3 26.2,162.3 48.9,164.0 71.0,56.1 179.8,30.9 910.6,30.1 1153.9,47.8 1213.7,109.8 1484.7,94.2 1578.0,177.0 1563.5,1787.3 1598.7,1798.5 1599.2,1842.2 1371.0,1841.6 889.4,1835.2 889.0,1875.2 871.9,1870.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824mm:g3824mm_g078091891:07809_1891-0002/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[57.0,471.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.23987421760043,41.22805252885674]}},{"type":"Feature","properties":{"resourceCoords":[1576.0,1055.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.23582116019783,41.22694090899209]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824mm:g3824mm_g078091891:07809_1891-0003__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Mercer, Pennsylvania | 1891 | sanborn07809_002 p3 [1]","metadata":[{"label":"streets","value":"7"},{"label":"intersections","value":"12"},{"label":"confidence","value":"0.95"},{"label":"confidence_provisional","value":"true"},{"label":"confidence_model","value":"corpus-v2"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"6452.0"},{"label":"split_canvas_h","value":"7652.0"}],"created":"2026-10-18T07:43:40Z","modified":"2026-10-18T07:43:40Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824mm:g3824mm_g078091891:07809_1891-0003__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824mm:g3824mm_g078091891:07809_1891-0003","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1551.7,1833.6 1551.0,1788.0 1560.2,1052.9 1559.1,764.0 1574.9,258.5 1574.5,86.3 1473.7,78.1 1461.2,29.5 888.3,49.1 825.0,95.8 778.0,46.2 686.7,374.9 140.2,443.4 53.2,606.7 102.8,1352.7 52.7,1420.4 64.8,1751.7 125.4,1808.5 544.3,1874.5 1523.4,1879.2 1551.7,1833.6\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824mm:g3824mm_g078091891:07809_1891-0003__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[743.0,981.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.2420722,41.2268744]}},{"type":"Feature","properties":{"resourceCoords":[1551.0,1788.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.2399161,41.2253368]}}]}}]}