{"id":"https://data.mapsnap.org/runs/v2.0/iiif/chronoscope/sanborn03832_007.main.iiif.json","type":"AnnotationPage","@context":["http://www.w3.org/ns/anno.jsonld"],"label":"Rockland, Massachusetts | 1917 | 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":"27"},{"label":"placed","value":"20"},{"label":"unplaced","value":"7"},{"label":"fit sources","value":"georef-snap 13, georef 5, snap:0 2"},{"label":"key map","value":"georeferenced"},{"label":"split sheets","value":"9 sheet(s) cut into 21 panels"},{"label":"unplaced pages","value":"p12__2 (tier 1, 42.12431,-70.91871 +/-100m); p14__2 (tier 1, 42.12413,-70.90427 +/-180m); p16__2 (tier 1, 42.14099,-70.92562 +/-100m); p2__1 (tier 1, 42.13445,-70.91735 +/-126m); p2__3 (tier 1, 42.13225,-70.91762 +/-100m); p5__1 (tier 1, 42.13166,-70.91621 +/-100m); p6__2 (tier 1, 42.13188,-70.91248 +/-100m)"}],"items":[{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764rm:g038321917:03832_1917-0010/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Rockland, Massachusetts | 1917 | sanborn03832_007 p10","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.86"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-19T15:16:58Z","modified":"2026-10-19T15:16:58Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764rm:g038321917:03832_1917-0010/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764rm:g038321917:03832_1917-0010","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"47.6,1583.2 44.4,1301.7 46.7,1076.4 43.2,801.9 54.1,623.4 207.3,624.2 304.5,619.3 248.2,434.2 215.4,332.4 173.8,203.4 172.6,199.2 154.8,139.8 1492.3,31.9 1497.5,214.2 1538.9,1383.8 1545.1,1593.4 1543.0,1861.3 1223.6,1837.1 1050.9,1821.1 830.4,1794.3 625.8,1764.9 290.8,1721.5 40.1,1693.2 47.6,1583.2\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764rm:g038321917:03832_1917-0010/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[323.0,637.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-70.91237915504976,42.12847072617217]}},{"type":"Feature","properties":{"resourceCoords":[653.0,1780.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-70.91489643641215,42.127332354590486]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764rm:g038321917:03832_1917-0011/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Rockland, Massachusetts | 1917 | sanborn03832_007 p11","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.83"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-19T15:16:58Z","modified":"2026-10-19T15:16:58Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764rm:g038321917:03832_1917-0011/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764rm:g038321917:03832_1917-0011","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"585.4,1569.9 684.2,1566.2 1167.2,1742.5 1168.3,1826.1 1567.3,1826.6 1565.5,1600.8 1487.8,1576.6 1501.9,1450.4 1467.5,1407.0 1442.9,1137.0 1394.5,1059.4 1431.2,920.1 1566.3,928.9 1567.0,650.2 1544.8,632.9 1566.3,405.6 1531.5,392.6 1513.8,227.6 1488.6,236.2 1461.3,194.7 1492.8,34.8 1255.6,81.5 1267.7,147.9 1236.0,154.6 919.6,1.0 659.3,1.0 599.5,12.8 601.9,128.2 796.7,122.6 775.0,280.6 678.2,290.5 595.5,299.3 506.8,309.4 425.0,312.3 423.0,434.1 343.0,431.8 164.4,429.9 117.4,429.7 119.2,567.7 116.8,718.3 111.6,855.4 112.0,932.5 114.8,981.4 207.8,952.1 323.5,913.6 355.4,903.6 416.2,1576.3 585.4,1569.9\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764rm:g038321917:03832_1917-0011/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[768.0,526.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-70.90980796322584,42.13072638540175]}},{"type":"Feature","properties":{"resourceCoords":[443.0,885.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-70.91090670161164,42.129156821985625]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764rm:g038321917:03832_1917-0012__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Rockland, Massachusetts | 1917 | sanborn03832_007 p12 [1]","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.98"},{"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":"2026-10-19T15:16:58Z","modified":"2026-10-19T15:16:58Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764rm:g038321917:03832_1917-0012__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764rm:g038321917:03832_1917-0012","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"217.2,1826.4 224.6,1819.9 349.0,1810.8 337.8,1819.0 400.2,1874.5 473.1,1821.5 711.2,1814.7 961.4,1880.1 969.1,1902.6 1126.0,1784.3 1116.0,1776.4 1050.8,1729.2 1006.8,1706.4 1073.0,1609.5 1104.0,1552.5 1243.3,1335.5 1355.7,1155.3 1382.2,1104.0 1413.5,1035.3 1440.2,953.7 1474.5,809.3 1533.4,573.4 1538.1,521.2 1527.1,482.8 1508.3,458.3 1407.8,392.3 1332.0,518.3 1114.2,474.0 861.4,421.0 853.8,363.4 841.5,248.8 816.5,51.2 799.4,44.0 577.0,66.3 358.9,45.1 223.0,81.0 107.0,156.5 44.0,441.0 96.0,988.5 67.2,1072.5 94.2,1431.0 72.6,1568.3 121.4,1771.4 50.0,1827.9 1.0,1785.6 1.0,1836.3 53.9,1832.5 131.3,1901.4 215.0,1828.3 217.2,1826.4\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764rm:g038321917:03832_1917-0012__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1325.0,511.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-70.91911229150095,42.12568983523916]}},{"type":"Feature","properties":{"resourceCoords":[627.0,1663.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-70.91651192323167,42.12108469890187]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764rm:g038321917:03832_1917-0013/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Rockland, Massachusetts | 1917 | sanborn03832_007 p13","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.97"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-19T15:16:58Z","modified":"2026-10-19T15:16:58Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764rm:g038321917:03832_1917-0013/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764rm:g038321917:03832_1917-0013","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1428.6,1912.0 1000.6,1912.0 950.5,1890.4 818.4,1838.0 737.9,1807.5 639.1,1780.9 565.4,1767.1 513.0,1760.6 508.1,1760.0 475.2,1759.0 316.5,1761.5 220.2,1777.3 210.3,1546.4 192.0,1419.7 155.8,912.5 120.7,495.3 101.9,383.1 70.2,237.6 16.1,77.3 6.5,55.4 1043.0,106.6 1050.4,37.0 1312.0,47.8 1377.9,47.9 1332.2,737.0 1456.7,744.9 1534.7,749.8 1428.6,1912.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764rm:g038321917:03832_1917-0013/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[191.0,1724.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-70.91532994530748,42.122207757231195]}},{"type":"Feature","properties":{"resourceCoords":[1024.0,418.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-70.91428894080835,42.12501594010381]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764rm:g038321917:03832_1917-0014__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Rockland, Massachusetts | 1917 | sanborn03832_007 p14 [1]","metadata":[{"label":"streets","value":"8"},{"label":"intersections","value":"12"},{"label":"confidence","value":"0.96"},{"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":"2026-10-19T15:16:58Z","modified":"2026-10-19T15:16:58Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764rm:g038321917:03832_1917-0014__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764rm:g038321917:03832_1917-0014","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1.0,1042.4 1.0,1070.1 30.7,1082.2 51.3,1302.4 63.5,1300.7 113.6,1453.5 92.3,1613.5 140.7,1661.6 100.0,1808.5 505.9,1874.9 821.1,1893.0 922.0,1863.1 951.5,1365.5 951.5,1348.0 974.9,1348.0 1125.3,1348.0 1386.4,1343.9 1429.0,1301.7 1530.1,1298.9 1598.7,843.5 1569.2,380.0 1588.0,312.0 1612.0,312.3 1612.0,227.8 1129.5,44.0 1029.9,46.3 767.3,52.6 174.8,71.0 102.7,72.8 89.3,430.3 194.3,434.0 156.6,1037.5 1.0,1042.4\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764rm:g038321917:03832_1917-0014__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[771.0,454.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-70.910059,42.125193]}},{"type":"Feature","properties":{"resourceCoords":[1033.0,1091.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-70.90799,42.12322]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764rm:g038321917:03832_1917-0015__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Rockland, Massachusetts | 1917 | sanborn03832_007 p15 [1]","metadata":[{"label":"streets","value":"2"},{"label":"intersections","value":"1"},{"label":"confidence","value":"0.61"},{"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":"3980.0"},{"label":"split_canvas_h","value":"4132.0"}],"created":"2026-10-19T15:16:58Z","modified":"2026-10-19T15:16:58Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764rm:g038321917:03832_1917-0015__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764rm:g038321917:03832_1917-0015","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"871.4,22.3 455.6,39.6 333.2,131.8 37.8,109.2 38.7,984.9 594.9,932.4 843.9,532.6 899.4,345.4 849.4,333.6 935.7,238.0 871.4,22.3\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764rm:g038321917:03832_1917-0015__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":[-70.92690277259477,42.12820374894066]}},{"type":"Feature","properties":{"resourceCoords":[995.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-70.92478064364605,42.12723414793102]}},{"type":"Feature","properties":{"resourceCoords":[995.0,1033.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-70.92613465567001,42.125596212455115]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1033.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-70.92825678461874,42.12656581346476]}},{"type":"Feature","properties":{"resourceCoords":[502.0,525.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-70.92652,42.126882]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764rm:g038321917:03832_1917-0015__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Rockland, Massachusetts | 1917 | sanborn03832_007 p15 [2]","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.91"},{"label":"confidence_provisional","value":"true"},{"label":"confidence_model","value":"corpus-v2"},{"label":"split_canvas_x","value":"2149.2"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"4302.8"},{"label":"split_canvas_h","value":"7652.0"}],"created":"2026-10-19T15:16:58Z","modified":"2026-10-19T15:16:58Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764rm:g038321917:03832_1917-0015__2/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764rm:g038321917:03832_1917-0015","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1410.2,1545.1 1517.9,1505.7 1511.2,995.5 1507.8,814.0 1502.9,556.5 1227.5,464.6 1311.4,242.6 1350.4,195.8 1419.8,158.1 1444.7,154.8 1239.2,30.2 854.6,603.5 802.4,605.0 732.6,716.8 749.3,788.5 641.9,1019.4 908.8,1292.7 824.8,1751.3 1194.8,1618.1 1277.2,1590.2 1410.2,1545.1\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764rm:g038321917:03832_1917-0015__2/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1250.1,470.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-70.91932039239953,42.12615842797551]}},{"type":"Feature","properties":{"resourceCoords":[785.2,1736.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-70.92250267280518,42.1252440560301]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764rm:g038321917:03832_1917-0015__3/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Rockland, Massachusetts | 1917 | sanborn03832_007 p15 [3]","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.47"},{"label":"confidence_provisional","value":"true"},{"label":"confidence_model","value":"corpus-v2"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"4119.2"},{"label":"split_canvas_w","value":"3274.4"},{"label":"split_canvas_h","value":"3532.8"}],"created":"2026-10-19T15:16:58Z","modified":"2026-10-19T15:16:58Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764rm:g038321917:03832_1917-0015__3/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764rm:g038321917:03832_1917-0015","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"637.5,1363.8 588.0,1334.6 386.4,1224.7 219.4,1162.2 163.2,1147.7 155.7,1146.5 1.0,1501.2 56.1,1550.3 40.5,1811.0 40.1,1881.6 781.5,1891.0 807.5,1464.9 752.3,1431.7 760.4,1379.8 637.5,1363.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764rm:g038321917:03832_1917-0015__3/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,1029.8],"type":"corner"},"geometry":{"type":"Point","coordinates":[-70.91503232963973,42.1223936485811]}},{"type":"Feature","properties":{"resourceCoords":[818.6,1029.8],"type":"corner"},"geometry":{"type":"Point","coordinates":[-70.91315558582485,42.12303194506979]}},{"type":"Feature","properties":{"resourceCoords":[818.6,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-70.91223323202058,42.121518848552185]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-70.91410997583544,42.1208805520635]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764rm:g038321917:03832_1917-0016__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Rockland, Massachusetts | 1917 | sanborn03832_007 p16 [1]","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.83"},{"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":"2026-10-19T15:16:58Z","modified":"2026-10-19T15:16:58Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764rm:g038321917:03832_1917-0016__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764rm:g038321917:03832_1917-0016","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"74.7,1838.0 232.1,1841.5 232.1,1833.5 894.8,1827.8 895.3,1786.7 1484.2,1754.5 1483.0,1784.1 1599.0,1746.0 1581.4,1338.0 1523.8,1286.0 1258.5,1387.5 831.5,1271.3 830.6,1271.1 716.3,1282.8 603.2,1248.8 569.3,1169.4 603.5,721.4 555.5,483.6 404.2,307.4 298.6,56.2 165.8,24.1 72.8,38.6 43.2,99.0 96.6,588.7 59.7,1752.1 74.7,1838.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764rm:g038321917:03832_1917-0016__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[238.0,574.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-70.92075205778187,42.14342366857623]}},{"type":"Feature","properties":{"resourceCoords":[1490.0,1731.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-70.91319820981644,42.14068522717978]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764rm:g038321917:03832_1917-0016__3/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Rockland, Massachusetts | 1917 | sanborn03832_007 p16 [3]","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.16"},{"label":"confidence_provisional","value":"true"},{"label":"confidence_model","value":"corpus-v2"},{"label":"split_canvas_x","value":"2105.2"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"4346.8"},{"label":"split_canvas_h","value":"5540.8"}],"created":"2026-10-19T15:16:58Z","modified":"2026-10-19T15:16:58Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764rm:g038321917:03832_1917-0016__3/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764rm:g038321917:03832_1917-0016","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"630.8,380.3 620.6,824.0 620.6,824.8 681.5,1071.5 635.7,1217.5 1195.7,1366.7 1395.8,1332.0 1599.8,1213.0 1595.8,206.0 1529.0,85.3 1400.0,22.0 1404.6,1.0 1224.1,1.0 1084.6,144.4 1055.5,378.5 1055.4,378.5 1055.4,378.6 856.9,378.6 785.0,452.5 719.0,379.0 630.8,380.3\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764rm:g038321917:03832_1917-0016__3/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[526.3,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-70.91856428207686,42.11958273341276]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-70.9157935050771,42.12002925332022]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,1385.2],"type":"corner"},"geometry":{"type":"Point","coordinates":[-70.9150318633037,42.11739211989734]}},{"type":"Feature","properties":{"resourceCoords":[526.3,1385.2],"type":"corner"},"geometry":{"type":"Point","coordinates":[-70.91780264030345,42.11694559998988]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764rm:g038321917:03832_1917-0002__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Rockland, Massachusetts | 1917 | sanborn03832_007 p2 [2]","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.88"},{"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":"2026-10-19T15:16:58Z","modified":"2026-10-19T15:16:58Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764rm:g038321917:03832_1917-0002__2/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764rm:g038321917:03832_1917-0002","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1157.5,1770.8 1243.5,1776.2 1448.7,1788.6 1451.1,1760.5 1456.4,1698.9 1464.5,1606.0 1491.9,1228.8 1507.8,1054.3 1410.9,1.0 1383.0,1.0 1348.6,108.6 1212.2,156.1 1158.5,419.3 1098.0,481.4 1098.0,485.5 1094.0,485.5 1090.9,488.6 904.2,527.6 78.8,430.9 59.1,1038.4 126.6,1135.7 353.2,1185.3 327.2,1350.7 327.2,1386.0 321.6,1386.0 308.9,1466.7 153.8,1477.8 61.0,1721.0 1.0,1765.0 1.0,1810.8 817.6,1782.5 880.9,1775.4 1119.4,1768.3 1157.5,1770.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764rm:g038321917:03832_1917-0002__2/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1241.0,1112.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-70.91734186995502,42.133525445502734]}},{"type":"Feature","properties":{"resourceCoords":[163.0,1112.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-70.91992949644755,42.13291298460102]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764rm:g038321917:03832_1917-0003/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Rockland, Massachusetts | 1917 | sanborn03832_007 p3","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.93"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-19T15:16:58Z","modified":"2026-10-19T15:16:58Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764rm:g038321917:03832_1917-0003/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764rm:g038321917:03832_1917-0003","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"94.5,957.7 45.6,816.1 76.0,744.3 87.5,402.5 64.6,42.8 221.8,63.5 222.6,55.5 886.4,122.2 891.4,81.2 1484.2,113.4 1479.8,142.8 1599.9,117.5 1548.3,903.4 1573.3,1139.7 1531.5,1267.1 1557.2,1749.6 1597.7,1781.0 1411.5,1852.5 1409.0,1845.7 1376.5,1841.0 1277.6,1837.0 1220.0,1838.4 1151.5,1837.5 1051.4,1840.5 967.9,1841.1 756.0,1838.7 754.9,1885.0 35.8,1849.1 37.5,1839.4 69.2,1647.5 85.5,1558.9 85.2,1014.4 71.1,1013.1 94.5,957.7\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764rm:g038321917:03832_1917-0003/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[981.0,1363.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-70.91307809348729,42.13570261330234]}},{"type":"Feature","properties":{"resourceCoords":[1447.0,78.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-70.91342742497093,42.14066255168718]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764rm:g038321917:03832_1917-0004__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Rockland, Massachusetts | 1917 | sanborn03832_007 p4 [1]","metadata":[{"label":"streets","value":"5"},{"label":"intersections","value":"5"},{"label":"confidence","value":"0.96"},{"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":"2026-10-19T15:16:58Z","modified":"2026-10-19T15:16:58Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764rm:g038321917:03832_1917-0004__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764rm:g038321917:03832_1917-0004","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1369.4,322.4 1368.9,254.2 991.8,67.7 987.5,97.5 986.0,106.7 585.0,127.6 585.2,110.7 206.9,103.5 206.9,105.0 167.9,920.2 123.2,916.5 134.9,935.6 87.9,955.2 125.9,1033.2 76.8,1246.6 154.7,1341.1 78.5,1582.3 147.0,1680.7 138.7,1833.1 283.9,1877.4 1025.1,1856.0 1108.2,1711.1 1065.8,813.2 1133.8,327.2 1136.5,327.1 1136.5,324.5 1265.7,324.5 1369.4,322.4\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764rm:g038321917:03832_1917-0004__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[198.0,1846.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-70.921918,42.130863]}},{"type":"Feature","properties":{"resourceCoords":[1370.0,1846.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-70.9207891,42.1288336]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764rm:g038321917:03832_1917-0004__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Rockland, Massachusetts | 1917 | sanborn03832_007 p4 [2]","metadata":[{"label":"streets","value":"4"},{"label":"intersections","value":"3"},{"label":"confidence","value":"0.63"},{"label":"confidence_provisional","value":"true"},{"label":"confidence_model","value":"corpus-v2"},{"label":"split_canvas_x","value":"4546.0"},{"label":"split_canvas_y","value":"1298.0"},{"label":"split_canvas_w","value":"1906.0"},{"label":"split_canvas_h","value":"6354.0"}],"created":"2026-10-19T15:16:58Z","modified":"2026-10-19T15:16:58Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764rm:g038321917:03832_1917-0004__2/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764rm:g038321917:03832_1917-0004","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1277.9,1884.1 1562.3,1836.1 1578.4,1698.5 1560.5,1444.1 1587.1,1206.6 1508.0,790.5 1537.3,530.0 1507.1,431.2 1462.0,389.9 1320.9,364.0 1238.2,385.7 1216.3,423.9 1185.0,413.2 1185.2,1832.6 1214.0,1874.3 1277.9,1884.1\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764rm:g038321917:03832_1917-0004__2/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1335.3,1071.3],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-70.9023682,42.1364145]}},{"type":"Feature","properties":{"resourceCoords":[1335.3,1412.2],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-70.903906,42.13588]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764rm:g038321917:03832_1917-0005__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Rockland, Massachusetts | 1917 | sanborn03832_007 p5 [2]","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.96"},{"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":"2026-10-19T15:16:58Z","modified":"2026-10-19T15:16:58Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764rm:g038321917:03832_1917-0005__2/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764rm:g038321917:03832_1917-0005","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1371.7,187.8 938.3,155.9 276.7,208.8 393.7,1221.9 469.5,1222.8 561.5,1224.0 564.3,1434.1 565.6,1561.3 590.8,1803.9 602.5,1866.4 986.8,1813.4 989.2,1830.6 1391.9,1745.5 1391.9,1736.0 1390.7,1625.9 1403.0,1234.1 1429.6,1017.7 1410.4,771.5 1393.8,507.2 1376.2,291.8 1371.7,187.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764rm:g038321917:03832_1917-0005__2/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1393.0,1226.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-70.91585220618623,42.13096028268417]}},{"type":"Feature","properties":{"resourceCoords":[384.0,1226.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-70.91643176157035,42.132753647200126]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764rm:g038321917:03832_1917-0006__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Rockland, Massachusetts | 1917 | sanborn03832_007 p6 [1]","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.97"},{"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":"2026-10-19T15:16:58Z","modified":"2026-10-19T15:16:58Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764rm:g038321917:03832_1917-0006__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764rm:g038321917:03832_1917-0006","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"202.3,1868.2 556.5,1882.0 715.2,1891.2 726.1,1649.6 888.6,1648.7 1065.3,1633.7 1073.7,1633.0 1230.0,1620.9 1422.7,1606.8 1474.7,1294.5 1087.7,1294.5 1089.7,1065.3 1408.2,1011.9 1575.3,983.8 1578.3,983.3 1530.7,958.5 1579.1,668.0 1525.1,677.6 1388.8,13.2 1333.9,18.8 1138.0,47.4 974.2,67.2 557.8,110.3 566.0,201.3 157.8,227.7 177.1,887.0 123.6,1315.4 162.6,1315.7 140.5,1866.1 202.3,1868.2\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764rm:g038321917:03832_1917-0006__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[473.0,113.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-70.91338563738746,42.13374335928924]}},{"type":"Feature","properties":{"resourceCoords":[738.0,804.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-70.91227194362787,42.132661403420805]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764rm:g038321917:03832_1917-0007__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Rockland, Massachusetts | 1917 | sanborn03832_007 p7 [1]","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.92"},{"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":"2026-10-19T15:16:58Z","modified":"2026-10-19T15:16:58Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764rm:g038321917:03832_1917-0007__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764rm:g038321917:03832_1917-0007","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1612.0,1104.3 1612.0,1039.6 1477.2,1036.2 1482.7,553.5 1455.7,542.1 1508.1,106.7 1419.0,37.5 1194.8,156.4 911.0,14.8 60.0,68.3 90.0,404.7 34.4,962.2 26.1,971.7 144.6,1349.7 130.8,1353.7 117.4,1417.8 97.2,1613.3 92.8,1727.6 86.7,1808.0 768.5,1790.7 768.5,1735.6 1047.5,1834.9 1088.0,1782.6 1087.3,1695.0 1084.4,1284.2 1084.4,1284.2 1470.8,1287.0 1612.0,1104.3\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764rm:g038321917:03832_1917-0007__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[759.0,1160.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-70.90910587007404,42.13382299843672]}},{"type":"Feature","properties":{"resourceCoords":[97.0,1355.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-70.91026507689111,42.13474718246261]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764rm:g038321917:03832_1917-0007__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Rockland, Massachusetts | 1917 | sanborn03832_007 p7 [2]","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.39"},{"label":"confidence_provisional","value":"true"},{"label":"confidence_model","value":"corpus-v2"},{"label":"split_canvas_x","value":"4337.6"},{"label":"split_canvas_y","value":"5136.8"},{"label":"split_canvas_w","value":"2114.4"},{"label":"split_canvas_h","value":"2515.2"}],"created":"2026-10-19T15:16:58Z","modified":"2026-10-19T15:16:58Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764rm:g038321917:03832_1917-0007__2/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764rm:g038321917:03832_1917-0007","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1582.0,1396.3 1592.9,1377.3 1612.0,1333.6 1612.0,1310.5 1585.3,1288.6 1526.7,1288.6 1353.5,1298.6 1349.8,1305.0 1375.3,1420.8 1387.9,1428.1 1509.5,1464.3 1561.1,1418.1 1582.0,1396.3\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764rm:g038321917:03832_1917-0007__2/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[1084.4,1284.2],"type":"corner"},"geometry":{"type":"Point","coordinates":[-70.906932165688,42.13525286494528]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,1284.2],"type":"corner"},"geometry":{"type":"Point","coordinates":[-70.90627653855786,42.13440132123825]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-70.9076323286658,42.13381913578963]}},{"type":"Feature","properties":{"resourceCoords":[1084.4,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-70.90828795579594,42.13467067949666]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764rm:g038321917:03832_1917-0008/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Rockland, Massachusetts | 1917 | sanborn03832_007 p8","metadata":[{"label":"streets","value":"9"},{"label":"intersections","value":"10"},{"label":"confidence","value":"0.98"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-19T15:16:58Z","modified":"2026-10-19T15:16:58Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764rm:g038321917:03832_1917-0008/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764rm:g038321917:03832_1917-0008","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"538.1,1816.9 128.6,1688.7 127.7,1610.0 140.0,1220.0 166.4,1004.6 147.3,759.5 130.8,496.4 113.3,282.1 107.1,139.6 658.8,133.8 659.3,165.4 933.7,156.0 1233.2,154.2 1506.0,158.6 1500.6,337.6 1512.7,612.0 1517.5,837.5 1529.5,1119.0 1525.4,1229.3 1515.0,1229.2 1414.0,1912.0 1408.3,1912.0 1409.2,1797.7 1014.8,1740.9 873.1,1827.8 549.4,1885.6 538.1,1816.9\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764rm:g038321917:03832_1917-0008/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[672.0,1220.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-70.915559,42.129989]}},{"type":"Feature","properties":{"resourceCoords":[140.0,1220.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-70.915866,42.130939]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764rm:g038321917:03832_1917-0009/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Rockland, Massachusetts | 1917 | sanborn03832_007 p9","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.92"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-19T15:16:58Z","modified":"2026-10-19T15:16:58Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764rm:g038321917:03832_1917-0009/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764rm:g038321917:03832_1917-0009","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"15.8,1092.8 23.2,848.2 51.0,850.4 121.2,266.9 221.5,288.0 376.7,118.8 878.6,108.4 878.8,114.0 1561.4,195.4 1561.6,205.8 1548.3,456.9 1525.0,792.9 1507.8,998.3 1494.2,1219.3 1488.5,1392.2 1483.3,1711.4 1482.3,1782.8 425.1,1828.2 293.6,1587.9 63.7,1156.6 15.8,1092.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764rm:g038321917:03832_1917-0009/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[713.0,738.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-70.91688140716188,42.12717929850764]}},{"type":"Feature","properties":{"resourceCoords":[261.0,1533.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-70.91757469496959,42.1255736281254]}}]}}]}