{"id":"https://data.mapsnap.org/runs/v2.0/iiif/chronoscope/sanborn05621_002.main.iiif.json","type":"AnnotationPage","@context":["http://www.w3.org/ns/anno.jsonld"],"label":"Salem, New-Jersey | 1891 | mapsnap generated fit (2026-10-19)","creator":{"type":"Software","name":"mapsnap","homepage":"https://mapsnap.org"},"rights":"https://opendatacommons.org/licenses/odbl/1-0/","metadata":[{"label":"generated","value":"2026-10-19"},{"label":"run","value":"corpus-v2"},{"label":"pages","value":"15"},{"label":"placed","value":"5"},{"label":"unplaced","value":"10"},{"label":"fit sources","value":"georef-snap 5"},{"label":"key map","value":"georeferenced"},{"label":"split sheets","value":"3 sheet(s) cut into 7 panels"},{"label":"unplaced pages","value":"p0__1 (tier 4, 39.57345,-75.46958 +/-699m); p0__2 (tier 1, 39.57679,-75.46655 +/-186m); p0__3 (tier 4, 39.57345,-75.46958 +/-699m); p3__1 (tier 1, 39.57650,-75.46986 +/-251m); p3__2 (tier 1, 39.57655,-75.46264 +/-126m); p6__1 (tier 1, 39.57451,-75.46321 +/-114m); p7 (tier 3, 39.57711,-75.47393 +/-703m); p9__1 (tier 1, 39.54804,-75.45740 +/-118m); p9__2 (tier 3, 39.54775,-75.45554 +/-703m); p9__3 (tier 3, 39.54775,-75.45554 +/-703m)"}],"items":[{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd381m:g3814m:g3814sm:g3814sm_g056211891:05621_1891-0002/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Salem, New-Jersey | 1891 | sanborn05621_002 p2","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.72"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-19T16:58:02Z","modified":"2026-10-19T16:58:02Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd381m:g3814m:g3814sm:g3814sm_g056211891:05621_1891-0002/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd381m:g3814m:g3814sm:g3814sm_g056211891:05621_1891-0002","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"108.5,1658.1 195.0,1302.5 195.6,1241.3 167.2,1166.8 168.7,880.0 173.9,351.9 180.7,133.9 271.9,108.0 272.5,110.1 1315.6,42.8 1518.8,102.2 1550.2,1809.8 1252.7,1859.8 1022.9,1785.8 414.3,1763.2 126.5,1795.4 85.8,1656.6 108.5,1658.1\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd381m:g3814m:g3814sm:g3814sm_g056211891:05621_1891-0002/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[205.0,1228.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-75.46617258032937,39.57406008918181]}},{"type":"Feature","properties":{"resourceCoords":[1184.0,1228.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-75.46549806811558,39.5758370116716]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd381m:g3814m:g3814sm:g3814sm_g056211891:05621_1891-0004/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Salem, New-Jersey | 1891 | sanborn05621_002 p4","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.71"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-19T16:58:02Z","modified":"2026-10-19T16:58:02Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd381m:g3814m:g3814sm:g3814sm_g056211891:05621_1891-0004/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd381m:g3814m:g3814sm:g3814sm_g056211891:05621_1891-0004","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1448.3,177.0 1575.7,1308.3 1547.8,1307.8 1492.5,1864.7 1300.1,1896.2 85.8,1864.4 21.4,1472.3 68.1,1203.5 29.5,887.0 105.0,455.1 48.1,152.5 68.4,99.6 1207.2,157.1 1418.0,85.4 1448.3,177.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd381m:g3814m:g3814sm:g3814sm_g056211891:05621_1891-0004/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1100.0,1809.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-75.47082750950555,39.57193340190086]}},{"type":"Feature","properties":{"resourceCoords":[1100.0,1293.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-75.47042706951751,39.57284146379685]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd381m:g3814m:g3814sm:g3814sm_g056211891:05621_1891-0005/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Salem, New-Jersey | 1891 | sanborn05621_002 p5","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.68"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-19T16:58:02Z","modified":"2026-10-19T16:58:02Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd381m:g3814m:g3814sm:g3814sm_g056211891:05621_1891-0005/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd381m:g3814m:g3814sm:g3814sm_g056211891:05621_1891-0005","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"241.3,1320.2 268.1,1320.0 121.6,236.9 334.5,229.5 849.7,201.0 1129.4,184.1 1200.2,151.7 1259.8,148.4 1612.0,210.0 1612.0,232.2 1561.4,250.7 1518.2,437.1 1603.4,1036.5 1612.0,1035.6 1478.6,1351.0 1503.1,1354.5 1350.8,1761.5 1219.9,1761.2 1217.3,1912.0 1190.9,1912.0 1156.2,1912.0 1137.7,1874.0 307.8,1835.8 200.2,1855.9 241.3,1320.2\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd381m:g3814m:g3814sm:g3814sm_g056211891:05621_1891-0005/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[657.0,203.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-75.46747335021098,39.574303185923036]}},{"type":"Feature","properties":{"resourceCoords":[491.0,1326.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-75.46883210347457,39.57237116206948]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd381m:g3814m:g3814sm:g3814sm_g056211891:05621_1891-0006__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Salem, New-Jersey | 1891 | sanborn05621_002 p6 [2]","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.33"},{"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":"2026-10-19T16:58:02Z","modified":"2026-10-19T16:58:02Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd381m:g3814m:g3814sm:g3814sm_g056211891:05621_1891-0006__2/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd381m:g3814m:g3814sm:g3814sm_g056211891:05621_1891-0006","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1033.6,69.6 1043.3,93.5 596.0,169.9 527.7,51.7 390.2,128.6 358.1,73.3 64.8,510.3 59.0,1120.3 284.5,1213.2 779.9,1152.0 930.9,1277.5 940.4,1436.8 1018.7,1501.9 981.9,1830.7 1212.9,1871.4 1461.5,1822.7 1507.8,1653.1 1501.0,1354.2 1411.4,1223.0 1382.3,1019.0 1512.4,805.6 1476.9,757.2 1525.3,721.8 1563.8,243.1 1533.9,142.5 1391.2,23.9 1033.6,69.6\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd381m:g3814m:g3814sm:g3814sm_g056211891:05621_1891-0006__2/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1144.0,719.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-75.46532046127427,39.57087482580082]}},{"type":"Feature","properties":{"resourceCoords":[262.0,864.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-75.46672936883728,39.569622368812226]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd381m:g3814m:g3814sm:g3814sm_g056211891:05621_1891-0008/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Salem, New-Jersey | 1891 | sanborn05621_002 p8","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.45"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-19T16:58:02Z","modified":"2026-10-19T16:58:02Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd381m:g3814m:g3814sm:g3814sm_g056211891:05621_1891-0008/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd381m:g3814m:g3814sm:g3814sm_g056211891:05621_1891-0008","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1494.1,1822.1 1170.2,1751.8 586.2,1836.2 57.5,1801.8 22.8,972.4 130.2,146.9 508.8,17.6 1254.9,34.6 1537.6,116.5 1577.5,178.9 1550.3,1732.6 1494.1,1822.1\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd381m:g3814m:g3814sm:g3814sm_g056211891:05621_1891-0008/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-75.47859294901781,39.577554680000134]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-75.47478529345037,39.57671794638028]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-75.47606372995682,39.57321263246448]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-75.47987138552426,39.57404936608434]}}]}}]}