{"id":"https://data.mapsnap.org/runs/v2.0/iiif/chronoscope/sanborn03820_002.main.iiif.json","type":"AnnotationPage","@context":["http://www.w3.org/ns/anno.jsonld"],"label":"Oxford, Massachusetts | 1922 | mapsnap generated fit (2026-10-20)","creator":{"type":"Software","name":"mapsnap","homepage":"https://mapsnap.org"},"rights":"https://opendatacommons.org/licenses/odbl/1-0/","metadata":[{"label":"generated","value":"2026-10-20"},{"label":"run","value":"corpus-v2"},{"label":"pages","value":"20"},{"label":"placed","value":"4"},{"label":"unplaced","value":"16"},{"label":"fit sources","value":"georef 4"},{"label":"key map","value":"georeferenced"},{"label":"split sheets","value":"7 sheet(s) cut into 18 panels"},{"label":"unplaced pages","value":"p1__3 (tier 3, 82.13851,-139.77678 +/-13759897m); p2__1 (tier 3, 234.91860,-399.76579 +/-17020383m); p2__2 (tier 3, 234.91860,-399.76579 +/-17020383m); p2__3 (tier 3, 234.91860,-399.76579 +/-17020383m); p2__4 (tier 3, 234.91860,-399.76579 +/-17020383m); p3__1 (tier 3, 129.51355,-220.39586 +/-13759897m); p3__2 (tier 3, 129.51355,-220.39586 +/-13759897m); p3__3 (tier 3, 129.51355,-220.39586 +/-13759897m); p4__1 (tier 3, 327.71313,-557.67615 +/-13759897m); p4__2 (tier 3, 327.71313,-557.67615 +/-13759897m); p5__2 (tier 2, 42.11923,-71.86471 +/-100m); p8__2 (tier 2, 42.11636,-71.86388 +/-211m); p9__1 (tier 2, 42.10992,-71.86614 +/-100m); p9__2 (tier 2, 42.10992,-71.86614 +/-100m); p9__3 (tier 2, 42.10992,-71.86614 +/-100m); p9__4 (tier 2, 42.10992,-71.86614 +/-100m)"}],"items":[{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764om:g038201922:03820_1922-0005__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Oxford, Massachusetts | 1922 | sanborn03820_002 p5 [1]","metadata":[{"label":"streets","value":"12"},{"label":"intersections","value":"19"},{"label":"confidence","value":"0.80"},{"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":"2026-10-20T04:47:03Z","modified":"2026-10-20T04:47:03Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764om:g038201922:03820_1922-0005__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764om:g038201922:03820_1922-0005","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"88.5,1835.7 198.7,1852.8 592.9,1846.4 593.6,1881.1 1277.5,1852.0 1275.4,1846.8 1312.9,1817.8 1547.3,1788.8 1585.7,1493.5 1524.3,1145.3 1400.9,1072.8 970.8,1076.1 838.1,942.5 829.2,213.8 765.6,157.6 744.8,90.2 682.3,45.0 555.6,16.5 308.7,28.4 95.7,91.8 48.6,253.0 98.5,1780.4 88.5,1835.7\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764om:g038201922:03820_1922-0005__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[942.0,1452.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.862558,42.1205879]}},{"type":"Feature","properties":{"resourceCoords":[593.0,759.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.863979,42.12327]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764om:g038201922:03820_1922-0006/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Oxford, Massachusetts | 1922 | sanborn03820_002 p6","metadata":[{"label":"streets","value":"5"},{"label":"intersections","value":"7"},{"label":"confidence","value":"0.76"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-20T04:47:03Z","modified":"2026-10-20T04:47:03Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764om:g038201922:03820_1922-0006/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764om:g038201922:03820_1922-0006","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1452.0,1794.5 545.9,1807.8 531.5,1783.0 482.7,1811.8 41.7,1733.5 63.4,1671.4 27.1,1436.2 90.3,1229.4 51.4,1128.6 112.5,1063.5 116.1,117.0 416.4,60.0 420.7,36.5 645.7,71.7 1451.0,60.0 1452.5,135.7 1457.4,915.1 1461.5,1220.0 1451.0,1360.5 1454.8,1660.5 1452.0,1794.5\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764om:g038201922:03820_1922-0006/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1451.0,1847.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.864876,42.116013]}},{"type":"Feature","properties":{"resourceCoords":[1451.0,60.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.8644805,42.1192487]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764om:g038201922:03820_1922-0007/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Oxford, Massachusetts | 1922 | sanborn03820_002 p7","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"6"},{"label":"confidence","value":"0.54"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-20T04:47:03Z","modified":"2026-10-20T04:47:03Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764om:g038201922:03820_1922-0007/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764om:g038201922:03820_1922-0007","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"165.9,1588.7 162.9,1295.8 173.5,1158.5 170.2,860.9 167.3,99.9 167.2,95.3 1531.6,42.8 1592.6,194.0 1521.9,629.3 1587.5,1619.8 1612.0,1627.2 1612.0,1727.5 992.7,1812.0 994.6,1788.3 996.0,1770.5 162.3,1747.0 162.8,1721.9 165.9,1588.7\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764om:g038201922:03820_1922-0007/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[166.0,1221.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.8647441,42.117032]}},{"type":"Feature","properties":{"resourceCoords":[166.0,26.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.8644805,42.1192487]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764om:g038201922:03820_1922-0008__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Oxford, Massachusetts | 1922 | sanborn03820_002 p8 [1]","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"4"},{"label":"confidence","value":"0.78"},{"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":"2026-10-20T04:47:03Z","modified":"2026-10-20T04:47:03Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764om:g038201922:03820_1922-0008__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764om:g038201922:03820_1922-0008","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"57.5,120.0 16.9,248.4 75.4,678.6 72.0,864.9 17.8,1082.6 48.8,1374.0 41.6,1681.0 73.5,1826.6 122.8,1842.5 1180.3,1880.7 1218.2,1770.5 1197.4,1503.4 1222.2,1494.5 1222.0,1486.0 1247.0,1485.6 1365.1,1443.3 1539.7,1440.8 1521.8,1289.9 1571.7,1127.3 1539.8,828.6 1571.7,821.2 1559.1,593.2 1589.7,513.0 1592.1,319.6 1549.5,84.2 1468.3,62.4 1469.8,112.3 1161.5,164.0 1162.1,152.1 1162.5,143.2 745.9,144.2 745.8,131.6 745.8,130.4 304.3,149.3 296.9,137.4 273.5,152.1 57.5,120.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764om:g038201922:03820_1922-0008__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[746.0,156.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.864876,42.116013]}},{"type":"Feature","properties":{"resourceCoords":[237.0,175.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.8674278,42.1161669]}}]}}]}