{"id":"https://data.mapsnap.org/runs/v2.0/iiif/chronoscope/sanborn03872_005.main.iiif.json","type":"AnnotationPage","@context":["http://www.w3.org/ns/anno.jsonld"],"label":"Walpole, Massachusetts | 1918 | 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":"24"},{"label":"placed","value":"8"},{"label":"unplaced","value":"16"},{"label":"fit sources","value":"georef 8"},{"label":"key map","value":"none"},{"label":"split sheets","value":"7 sheet(s) cut into 24 panels"},{"label":"unplaced pages","value":"p1__1 (tier 4, 42.14266,-71.24343 +/-4444m); p1__2 (tier 4, 42.14266,-71.24343 +/-4444m); p1__4 (tier 4, 42.14266,-71.24343 +/-4444m); p1__5 (tier 4, 42.14266,-71.24343 +/-4444m); p2__2 (tier 1, 42.24802,-71.29815 +/-105m); p3__1 (tier 2, 42.14612,-71.25299 +/-220m); p3__3 (tier 2, 42.14612,-71.25299 +/-220m); p4__2 (tier 2, 42.14282,-71.25275 +/-470m); p4__3 (tier 2, 42.14282,-71.25275 +/-470m); p4__4 (tier 2, 42.14282,-71.25275 +/-470m); p5__2 (tier 2, 42.14220,-71.25346 +/-497m); p5__3 (tier 2, 42.14220,-71.25346 +/-497m); p5__4 (tier 2, 42.14220,-71.25346 +/-497m); p6__3 (tier 1, 42.15669,-71.22241 +/-137m); p7__2 (tier 4, 42.14266,-71.24343 +/-4444m); p7__3 (tier 4, 42.14266,-71.24343 +/-4444m)"}],"items":[{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764wm:g038721918:03872_1918-0001__3/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Walpole, Massachusetts | 1918 | sanborn03872_005 p1 [3]","metadata":[{"label":"streets","value":"4"},{"label":"intersections","value":"3"},{"label":"confidence","value":"0.14"},{"label":"confidence_provisional","value":"true"},{"label":"confidence_model","value":"corpus-v2"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"1807.6"},{"label":"split_canvas_w","value":"6452.0"},{"label":"split_canvas_h","value":"5844.4"}],"created":"2026-10-19T01:10:02Z","modified":"2026-10-19T01:10:02Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764wm:g038721918:03872_1918-0001__3/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764wm:g038721918:03872_1918-0001","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"164.2,1257.5 178.2,1257.5 300.1,1257.5 707.4,1254.1 920.2,1222.9 946.6,1239.2 914.4,1726.8 943.4,1889.3 1293.1,1909.1 1338.4,1822.2 1280.1,1727.8 1270.7,1554.3 1219.3,1370.4 1195.0,1284.0 1195.2,1284.0 1195.0,1283.5 1197.8,1283.5 1545.6,1283.0 1578.4,1003.2 1461.7,978.6 1452.8,960.4 848.5,958.8 848.3,958.5 845.6,958.5 843.9,951.5 771.9,836.9 763.8,513.5 710.0,507.8 635.9,647.5 599.0,675.4 599.0,683.4 599.0,683.5 588.2,683.5 552.9,710.1 71.5,716.6 34.6,780.8 27.8,980.6 1.0,974.9 1.0,976.3 68.2,1089.7 84.9,1089.7 21.2,1219.3 164.2,1257.5\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764wm:g038721918:03872_1918-0001__3/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[460.0,1090.5],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.2488135,42.1471127]}},{"type":"Feature","properties":{"resourceCoords":[937.0,1090.5],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.2465592,42.1471703]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764wm:g038721918:03872_1918-0002__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Walpole, Massachusetts | 1918 | sanborn03872_005 p2 [1]","metadata":[{"label":"streets","value":"7"},{"label":"intersections","value":"14"},{"label":"confidence","value":"0.35"},{"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":"2026-10-19T01:10:02Z","modified":"2026-10-19T01:10:02Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764wm:g038721918:03872_1918-0002__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764wm:g038721918:03872_1918-0002","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1575.8,529.1 1389.7,441.8 901.4,541.7 800.1,518.2 795.0,443.6 694.0,441.5 693.5,441.5 693.5,441.5 661.1,420.9 532.0,63.4 235.8,44.8 35.0,592.6 56.0,1043.8 155.6,1259.1 48.0,1505.5 36.8,1837.3 77.0,1888.3 333.0,1855.9 436.2,1912.0 482.1,1912.0 1437.3,1677.9 1449.5,1726.3 1612.0,1464.1 1612.0,1375.2 1612.0,1318.5 1355.1,762.5 1324.0,681.0 1466.1,640.6 1575.8,529.1\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764wm:g038721918:03872_1918-0002__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1324.0,681.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.25579,42.14625]}},{"type":"Feature","properties":{"resourceCoords":[1246.0,1423.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.2551776,42.1449412]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764wm:g038721918:03872_1918-0003__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Walpole, Massachusetts | 1918 | sanborn03872_005 p3 [2]","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"8"},{"label":"confidence","value":"0.25"},{"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":"2026-10-19T01:10:02Z","modified":"2026-10-19T01:10:02Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764wm:g038721918:03872_1918-0003__2/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764wm:g038721918:03872_1918-0003","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"910.0,1823.2 872.5,1767.3 1203.1,1832.6 1184.3,1769.1 1612.0,1552.3 1612.0,1471.0 1592.3,1451.9 1578.4,1243.9 1483.2,1142.1 1526.8,1081.3 1284.2,886.5 1288.8,590.9 1485.2,457.3 1384.2,301.7 1295.0,41.2 1272.5,63.7 1026.3,1.0 1025.2,1.0 964.6,40.5 518.1,46.4 442.1,619.8 270.9,619.3 231.7,706.2 140.4,640.9 91.5,706.8 33.7,1042.1 50.4,1478.5 19.8,1507.0 83.3,1651.7 68.0,1800.0 156.1,1801.3 773.5,1768.7 910.0,1823.2\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764wm:g038721918:03872_1918-0003__2/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[68.0,1800.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.25579,42.14625]}},{"type":"Feature","properties":{"resourceCoords":[1046.0,1310.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.2531879,42.145679]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764wm:g038721918:03872_1918-0004__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Walpole, Massachusetts | 1918 | sanborn03872_005 p4 [1]","metadata":[{"label":"streets","value":"10"},{"label":"intersections","value":"14"},{"label":"confidence","value":"0.18"},{"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":"2026-10-19T01:10:02Z","modified":"2026-10-19T01:10:02Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764wm:g038721918:03872_1918-0004__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764wm:g038721918:03872_1918-0004","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"831.9,1.0 821.7,1.0 774.0,36.4 418.6,94.5 276.1,38.4 230.3,41.6 226.7,66.2 107.9,53.8 61.7,162.6 61.1,285.6 91.8,350.5 122.8,327.4 129.0,353.5 356.8,377.0 431.7,466.0 448.5,624.3 432.2,820.5 380.1,968.6 364.4,1637.5 355.9,1661.3 128.7,1668.0 69.1,1782.4 78.6,1854.2 113.0,1876.9 434.4,1879.0 448.4,1898.0 897.8,1795.1 888.0,1821.7 882.4,1837.5 882.4,1837.7 956.3,1862.9 1108.5,1904.3 1109.0,1912.0 1498.2,1912.0 1487.2,1898.6 1545.9,1824.3 1530.9,1721.6 1415.1,1671.8 1279.3,1671.9 1279.1,1671.0 1278.8,1671.0 1278.8,1669.7 1248.3,1541.6 1281.9,1262.5 1420.5,1260.4 1472.8,1212.8 1530.4,1213.8 1524.0,1087.1 1569.9,1031.0 1550.3,1010.6 1585.6,839.8 1512.7,464.6 1559.2,426.5 1521.0,421.7 1440.9,206.1 1409.6,211.7 1458.6,57.7 1456.9,57.0 1300.6,147.1 1306.5,123.7 831.9,1.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764wm:g038721918:03872_1918-0004__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1279.0,233.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.2541035,42.1443287]}},{"type":"Feature","properties":{"resourceCoords":[1078.0,1076.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.2512228,42.1417814]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764wm:g038721918:03872_1918-0005__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Walpole, Massachusetts | 1918 | sanborn03872_005 p5 [1]","metadata":[{"label":"streets","value":"9"},{"label":"intersections","value":"12"},{"label":"confidence","value":"0.59"},{"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":"2026-10-19T01:10:02Z","modified":"2026-10-19T01:10:02Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764wm:g038721918:03872_1918-0005__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764wm:g038721918:03872_1918-0005","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"45.8,318.2 87.8,349.8 56.1,422.6 96.5,503.6 72.7,688.2 108.6,830.2 84.8,1070.1 35.4,1221.6 64.0,1257.0 42.6,1309.9 88.0,1518.9 47.2,1805.8 75.2,1854.4 178.9,1845.0 190.7,1872.2 188.1,1575.7 244.8,1370.6 244.8,1364.1 246.7,1364.1 247.1,1362.4 696.0,1340.8 706.5,1302.0 706.5,1286.5 710.7,1286.5 711.5,1283.5 1401.7,1277.7 1543.8,1223.3 1537.5,864.3 1581.0,781.9 1558.2,769.4 1586.5,523.7 1508.0,211.6 1450.0,154.2 1332.2,176.1 1114.5,28.9 1114.5,255.5 1114.5,452.0 826.0,452.0 766.8,287.4 721.8,162.1 720.2,157.7 709.9,128.9 544.9,132.5 539.7,132.3 463.2,129.2 464.2,111.3 466.0,81.8 45.8,318.2\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764wm:g038721918:03872_1918-0005__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[506.0,1217.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.2452616,42.1363421]}},{"type":"Feature","properties":{"resourceCoords":[1009.0,812.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.2444768,42.1386375]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764wm:g038721918:03872_1918-0006__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Walpole, Massachusetts | 1918 | sanborn03872_005 p6 [1]","metadata":[{"label":"streets","value":"2"},{"label":"intersections","value":"1"},{"label":"confidence","value":"0.68"},{"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":"2376.0"},{"label":"split_canvas_h","value":"1918.0"}],"created":"2026-10-19T01:10:02Z","modified":"2026-10-19T01:10:02Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764wm:g038721918:03872_1918-0006__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764wm:g038721918:03872_1918-0006","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"18.1,440.4 568.6,456.7 567.5,40.1 431.4,47.9 421.8,30.4 16.6,50.0 18.1,440.4\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764wm:g038721918:03872_1918-0006__1/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.22040244177543,42.15813424093944]}},{"type":"Feature","properties":{"resourceCoords":[594.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.21959512106923,42.15905440931091]}},{"type":"Feature","properties":{"resourceCoords":[594.0,479.5],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.21859155039648,42.15857104451597]}},{"type":"Feature","properties":{"resourceCoords":[0.0,479.5],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.21939887110268,42.1576508761445]}},{"type":"Feature","properties":{"resourceCoords":[413.0,430.6],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.21894,42.15834]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764wm:g038721918:03872_1918-0006__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Walpole, Massachusetts | 1918 | sanborn03872_005 p6 [2]","metadata":[{"label":"streets","value":"4"},{"label":"intersections","value":"6"},{"label":"confidence","value":"0.79"},{"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":"2026-10-19T01:10:02Z","modified":"2026-10-19T01:10:02Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764wm:g038721918:03872_1918-0006__2/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764wm:g038721918:03872_1918-0006","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1560.1,1855.8 1567.0,109.6 1392.6,20.4 682.2,27.3 595.4,479.9 411.4,528.1 679.0,1241.5 690.1,1269.8 689.7,1270.0 690.3,1271.6 76.5,1602.5 59.2,1826.1 156.8,1894.4 957.7,1830.4 1268.5,1892.3 1560.1,1855.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764wm:g038721918:03872_1918-0006__2/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[466.0,1457.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.2124,42.16013]}},{"type":"Feature","properties":{"resourceCoords":[1329.0,1018.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.21387,42.16158]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764wm:g038721918:03872_1918-0007__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Walpole, Massachusetts | 1918 | sanborn03872_005 p7 [1]","metadata":[{"label":"streets","value":"5"},{"label":"intersections","value":"10"},{"label":"confidence","value":"0.32"},{"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":"2026-10-19T01:10:02Z","modified":"2026-10-19T01:10:02Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764wm:g038721918:03872_1918-0007__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764wm:g038721918:03872_1918-0007","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1571.3,356.6 1537.5,172.9 1477.1,59.8 1222.7,45.5 909.9,177.7 709.2,119.6 433.8,192.0 91.8,48.5 66.0,1666.5 170.2,1844.3 565.0,1825.1 732.1,1742.7 716.9,1147.6 779.6,866.3 779.6,863.0 802.0,863.0 979.7,837.2 1005.1,615.2 1069.5,549.8 1286.5,623.9 1518.9,584.3 1571.3,356.6\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764wm:g038721918:03872_1918-0007__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[488.0,331.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.261487,42.1050417]}},{"type":"Feature","properties":{"resourceCoords":[1611.0,261.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.2597028,42.106519]}}]}}]}