{"id":"https://data.mapsnap.org/runs/v1.3/iiif/chronoscope/sanborn05850_001.main.iiif.json","type":"AnnotationPage","@context":["http://www.w3.org/ns/anno.jsonld"],"label":"Cohoes, New-York | 1885 | mapsnap generated fit (2026-09-23)","creator":{"type":"Software","name":"mapsnap","homepage":"https://mapsnap.org"},"rights":"https://opendatacommons.org/licenses/odbl/1-0/","metadata":[{"label":"generated","value":"2026-09-23"},{"label":"run","value":"corpus-v1"},{"label":"pages","value":"24"},{"label":"placed","value":"12"},{"label":"unplaced","value":"12"},{"label":"fit sources","value":"georef 10, snap:0 1, georef-snap 1"},{"label":"key map","value":"georeferenced"},{"label":"split sheets","value":"7 sheet(s) cut into 18 panels"},{"label":"unplaced pages","value":"p0 (tier 1, 42.78709,-73.72235 +/-270m); p11__2 (tier 1, 42.76806,-73.69875 +/-131m); p11__3 (tier 1, 42.76683,-73.70085 +/-100m); p12__2 (tier 3, 42.76189,-73.70049 +/-566m); p13__2 (tier 1, 42.76923,-73.69257 +/-116m); p13__3 (tier 1, 42.77546,-73.70243 +/-118m); p2__1 (tier 2, 42.77339,-73.70126 +/-100m); p3__2 (tier 1, 42.77795,-73.70188 +/-100m); p4__2 (tier 1, 42.77615,-73.69975 +/-100m); p4__3 (tier 1, 42.77639,-73.69882 +/-100m); p5__1 (tier 1, 42.77493,-73.69680 +/-246m); p5__2 (tier 1, 42.77419,-73.69202 +/-120m)"}],"items":[{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd380m:g3804m:g3804cm:g3804cm_g058501885:05850_1885-0010/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Cohoes, New-York | 1885 | sanborn05850_001 p10","metadata":[{"label":"streets","value":"8"},{"label":"intersections","value":"14"}],"created":"2026-09-23T02:52:11Z","modified":"2026-09-23T02:52:11Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd380m:g3804m:g3804cm:g3804cm_g058501885:05850_1885-0010/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd380m:g3804m:g3804cm:g3804cm_g058501885:05850_1885-0010","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"-0.0,1681.3 129.6,1681.3 317.0,601.8 260.1,169.7 1301.0,160.8 1298.5,-0.0 1392.5,-0.0 1393.5,163.9 1484.7,167.1 1475.2,1182.1 1613.0,1181.2 1613.0,1913.0 -0.0,1913.0 -0.0,1681.3\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd380m:g3804m:g3804cm:g3804cm_g058501885:05850_1885-0010/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[860.0,495.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-73.700839,42.76887]}},{"type":"Feature","properties":{"resourceCoords":[1475.0,1509.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-73.703024,42.767442]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd380m:g3804m:g3804cm:g3804cm_g058501885:05850_1885-0011__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Cohoes, New-York | 1885 | sanborn05850_001 p11 [1]","metadata":[{"label":"streets","value":"5"},{"label":"intersections","value":"6"},{"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":"2026-09-23T02:52:11Z","modified":"2026-09-23T02:52:11Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd380m:g3804m:g3804cm:g3804cm_g058501885:05850_1885-0011__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd380m:g3804m:g3804cm:g3804cm_g058501885:05850_1885-0011","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"0.0,1183.3 604.7,1179.6 563.1,1706.8 662.0,1596.3 678.5,1913.0 711.5,1913.0 792.0,1712.8 868.5,1781.3 1212.8,841.6 1613.0,841.4 1613.0,0.0 997.9,0.0 994.2,89.3 -0.0,74.0 0.0,1183.3\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd380m:g3804m:g3804cm:g3804cm_g058501885:05850_1885-0011__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[668.0,739.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-73.700266,42.766572]}},{"type":"Feature","properties":{"resourceCoords":[265.0,73.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-73.701576,42.767642]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd380m:g3804m:g3804cm:g3804cm_g058501885:05850_1885-0012__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Cohoes, New-York | 1885 | sanborn05850_001 p12 [1]","metadata":[{"label":"streets","value":"4"},{"label":"intersections","value":"3"},{"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":"2026-09-23T02:52:11Z","modified":"2026-09-23T02:52:11Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd380m:g3804m:g3804cm:g3804cm_g058501885:05850_1885-0012__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd380m:g3804m:g3804cm:g3804cm_g058501885:05850_1885-0012","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1613.0,922.9 1171.1,930.8 1014.3,761.2 1015.9,372.4 715.6,373.2 715.6,0.0 173.9,0.0 276.3,282.4 -0.0,-0.0 -0.0,1913.0 303.0,1913.0 585.0,1913.0 1613.0,1913.0 1613.0,922.9\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd380m:g3804m:g3804cm:g3804cm_g058501885:05850_1885-0012__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[428.0,1534.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-73.700953,42.762166]}},{"type":"Feature","properties":{"resourceCoords":[864.0,1326.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-73.699738,42.762079]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd380m:g3804m:g3804cm:g3804cm_g058501885:05850_1885-0012__3/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Cohoes, New-York | 1885 | sanborn05850_001 p12 [3]","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"split_canvas_x","value":"4057.2"},{"label":"split_canvas_y","value":"1484.4"},{"label":"split_canvas_w","value":"2394.8"},{"label":"split_canvas_h","value":"2238.8"}],"created":"2026-09-23T02:52:11Z","modified":"2026-09-23T02:52:11Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd380m:g3804m:g3804cm:g3804cm_g058501885:05850_1885-0012__3/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd380m:g3804m:g3804cm:g3804cm_g058501885:05850_1885-0012","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1547.3,758.1 1556.5,371.2 1194.3,372.0 1151.3,677.2 1547.3,758.1\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd380m:g3804m:g3804cm:g3804cm_g058501885:05850_1885-0012__3/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[1014.3,371.1],"type":"corner"},"geometry":{"type":"Point","coordinates":[-73.70141538817057,42.762874858474696]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,371.1],"type":"corner"},"geometry":{"type":"Point","coordinates":[-73.69960681618561,42.762951898429996]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,930.8],"type":"corner"},"geometry":{"type":"Point","coordinates":[-73.69950940250118,42.761701771067834]}},{"type":"Feature","properties":{"resourceCoords":[1014.3,930.8],"type":"corner"},"geometry":{"type":"Point","coordinates":[-73.70131797448614,42.76162473111253]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd380m:g3804m:g3804cm:g3804cm_g058501885:05850_1885-0013__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Cohoes, New-York | 1885 | sanborn05850_001 p13 [1]","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"9"},{"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":"4342.4"}],"created":"2026-09-23T02:52:11Z","modified":"2026-09-23T02:52:11Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd380m:g3804m:g3804cm:g3804cm_g058501885:05850_1885-0013__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd380m:g3804m:g3804cm:g3804cm_g058501885:05850_1885-0013","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1613.0,0.0 -0.0,-0.0 0.0,1083.2 738.9,1084.3 1613.0,1085.6 1613.0,0.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd380m:g3804m:g3804cm:g3804cm_g058501885:05850_1885-0013__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[155.0,682.8],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-73.689929,42.773309]}},{"type":"Feature","properties":{"resourceCoords":[1579.0,682.8],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-73.686524,42.772683]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd380m:g3804m:g3804cm:g3804cm_g058501885:05850_1885-0002__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Cohoes, New-York | 1885 | sanborn05850_001 p2 [2]","metadata":[{"label":"streets","value":"1"},{"label":"intersections","value":"1"},{"label":"split_canvas_x","value":"2219.2"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"4232.8"},{"label":"split_canvas_h","value":"5247.6"}],"created":"2026-09-23T02:52:11Z","modified":"2026-09-23T02:52:11Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd380m:g3804m:g3804cm:g3804cm_g058501885:05850_1885-0002__2/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd380m:g3804m:g3804cm:g3804cm_g058501885:05850_1885-0002","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1613.0,0.0 554.8,0.0 622.2,734.3 972.0,1310.0 1613.0,1311.9 1613.0,0.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd380m:g3804m:g3804cm:g3804cm_g058501885:05850_1885-0002__2/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[554.8,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-73.71202254274384,42.78341674787441]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-73.71043915499433,42.78494459752735]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,1311.9],"type":"corner"},"geometry":{"type":"Point","coordinates":[-73.70786511890006,42.78350205369659]}},{"type":"Feature","properties":{"resourceCoords":[554.8,1311.9],"type":"corner"},"geometry":{"type":"Point","coordinates":[-73.70944850664957,42.78197420404365]}},{"type":"Feature","properties":{"resourceCoords":[1044.4,630.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-73.7100539,42.783431]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd380m:g3804m:g3804cm:g3804cm_g058501885:05850_1885-0003__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Cohoes, New-York | 1885 | sanborn05850_001 p3 [1]","metadata":[{"label":"streets","value":"3"},{"label":"intersections","value":"3"},{"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":"2026-09-23T02:52:11Z","modified":"2026-09-23T02:52:11Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd380m:g3804m:g3804cm:g3804cm_g058501885:05850_1885-0003__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd380m:g3804m:g3804cm:g3804cm_g058501885:05850_1885-0003","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1613.0,1876.2 1613.0,0.0 261.9,0.0 366.5,524.5 0.0,524.0 -0.0,1913.0 138.6,1913.0 182.9,1560.5 800.2,1580.0 797.4,1638.2 828.7,1540.6 1223.0,1557.5 1265.2,1820.0 1613.0,1876.2\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd380m:g3804m:g3804cm:g3804cm_g058501885:05850_1885-0003__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[786.0,1820.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-73.7014847,42.7754914]}},{"type":"Feature","properties":{"resourceCoords":[1265.0,1820.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-73.700252,42.775658]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd380m:g3804m:g3804cm:g3804cm_g058501885:05850_1885-0004__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Cohoes, New-York | 1885 | sanborn05850_001 p4 [1]","metadata":[{"label":"streets","value":"7"},{"label":"intersections","value":"9"},{"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":"2026-09-23T02:52:11Z","modified":"2026-09-23T02:52:11Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd380m:g3804m:g3804cm:g3804cm_g058501885:05850_1885-0004__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd380m:g3804m:g3804cm:g3804cm_g058501885:05850_1885-0004","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"683.2,1715.3 1613.0,1733.5 1613.0,0.0 582.4,0.0 702.5,374.6 891.7,305.4 928.2,349.4 723.5,440.3 902.0,997.3 532.0,1053.2 404.2,801.3 -0.0,898.5 -0.0,1024.0 211.6,1833.0 683.2,1715.3\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd380m:g3804m:g3804cm:g3804cm_g058501885:05850_1885-0004__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[653.0,1481.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-73.7000923,42.7748633]}},{"type":"Feature","properties":{"resourceCoords":[1038.0,980.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-73.6989932,42.775673]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd380m:g3804m:g3804cm:g3804cm_g058501885:05850_1885-0006/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Cohoes, New-York | 1885 | sanborn05850_001 p6","metadata":[{"label":"streets","value":"9"},{"label":"intersections","value":"10"}],"created":"2026-09-23T02:52:11Z","modified":"2026-09-23T02:52:11Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd380m:g3804m:g3804cm:g3804cm_g058501885:05850_1885-0006/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd380m:g3804m:g3804cm:g3804cm_g058501885:05850_1885-0006","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"53.0,1836.8 101.2,1692.7 -0.0,1696.2 -0.0,-0.0 630.0,0.0 641.9,376.2 787.5,371.6 822.2,0.0 1471.1,0.0 1442.9,1828.9 53.0,1836.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd380m:g3804m:g3804cm:g3804cm_g058501885:05850_1885-0006/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1101.0,1831.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-73.7017893,42.7725401]}},{"type":"Feature","properties":{"resourceCoords":[1453.0,659.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-73.7013605,42.774754]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd380m:g3804m:g3804cm:g3804cm_g058501885:05850_1885-0007/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Cohoes, New-York | 1885 | sanborn05850_001 p7","metadata":[{"label":"streets","value":"8"},{"label":"intersections","value":"11"}],"created":"2026-09-23T02:52:11Z","modified":"2026-09-23T02:52:11Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd380m:g3804m:g3804cm:g3804cm_g058501885:05850_1885-0007/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd380m:g3804m:g3804cm:g3804cm_g058501885:05850_1885-0007","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"530.0,1815.5 15.4,166.4 495.3,36.1 1446.5,35.1 1445.8,0.0 1613.0,0.0 1613.0,1348.2 1533.3,1376.9 1537.3,1913.0 1088.5,1913.0 1015.2,1633.0 530.0,1815.5\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd380m:g3804m:g3804cm:g3804cm_g058501885:05850_1885-0007/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[832.0,35.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-73.6992889,42.7743499]}},{"type":"Feature","properties":{"resourceCoords":[1531.0,35.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-73.6976246,42.7741671]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd380m:g3804m:g3804cm:g3804cm_g058501885:05850_1885-0008/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Cohoes, New-York | 1885 | sanborn05850_001 p8","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-23T02:52:11Z","modified":"2026-09-23T02:52:11Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd380m:g3804m:g3804cm:g3804cm_g058501885:05850_1885-0008/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd380m:g3804m:g3804cm:g3804cm_g058501885:05850_1885-0008","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1551.4,186.7 1543.1,1662.6 1101.9,1719.0 -0.0,1525.6 -0.0,-0.0 174.0,0.0 119.6,145.7 1551.4,186.7\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd380m:g3804m:g3804cm:g3804cm_g058501885:05850_1885-0008/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-73.7047149841524,42.772459291167124]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-73.7008847007531,42.77298532546958]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-73.70004078042996,42.76962713957509]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-73.70387106382927,42.76910110527264]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd380m:g3804m:g3804cm:g3804cm_g058501885:05850_1885-0009/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Cohoes, New-York | 1885 | sanborn05850_001 p9","metadata":[{"label":"streets","value":"5"},{"label":"intersections","value":"6"}],"created":"2026-09-23T02:52:11Z","modified":"2026-09-23T02:52:11Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd380m:g3804m:g3804cm:g3804cm_g058501885:05850_1885-0009/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd380m:g3804m:g3804cm:g3804cm_g058501885:05850_1885-0009","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"102.3,1913.0 119.0,74.0 648.7,66.7 622.2,361.3 1053.8,516.9 1235.7,0.0 1613.0,0.0 1613.0,1913.0 102.3,1913.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd380m:g3804m:g3804cm:g3804cm_g058501885:05850_1885-0009/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[886.0,988.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-73.698448,42.770028]}},{"type":"Feature","properties":{"resourceCoords":[119.0,74.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-73.7006422,42.771317]}}]}}]}