{"id":"https://data.mapsnap.org/runs/v2.0/iiif/chronoscope/sanborn03791_005.main.iiif.json","type":"AnnotationPage","@context":["http://www.w3.org/ns/anno.jsonld"],"label":"Milford, Massachusetts | 1910 | 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":"45"},{"label":"placed","value":"25"},{"label":"unplaced","value":"20"},{"label":"fit sources","value":"georef-snap 17, georef 6, snap:0 2"},{"label":"key map","value":"georeferenced"},{"label":"split sheets","value":"14 sheet(s) cut into 36 panels"},{"label":"unplaced pages","value":"p12__1 (tier 1, 42.13744,-71.51681 +/-112m); p13__2 (tier 1, 42.14015,-71.51629 +/-100m); p13__3 (tier 1, 42.13939,-71.51146 +/-100m); p14__1 (tier 1, 42.14114,-71.51597 +/-100m); p16__2 (tier 1, 42.14366,-71.51869 +/-105m); p19__2 (tier 1, 42.14461,-71.51252 +/-262m); p21__2 (tier 1, 42.13618,-71.53182 +/-116m); p21__3 (tier 1, 42.13720,-71.53175 +/-107m); p22__2 (tier 2, 42.13189,-71.54159 +/-119m); p23__2 (tier 1, 42.13098,-71.54153 +/-100m); p24__1 (tier 1, 42.13439,-71.54209 +/-101m); p2__2 (tier 1, 42.13443,-71.52512 +/-100m); p2__3 (tier 1, 42.13382,-71.52591 +/-100m); p2__4 (tier 1, 42.13290,-71.52789 +/-100m); p4__2 (tier 1, 42.13760,-71.52439 +/-111m); p5__2 (tier 2, 42.13701,-71.51842 +/-100m); p5__3 (tier 1, 42.13520,-71.51915 +/-117m); p9__2 (tier 1, 42.14214,-71.52264 +/-100m); p9__3 (tier 1, 42.14320,-71.52255 +/-100m); p9__4 (tier 1, 42.14131,-71.52148 +/-100m)"}],"items":[{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764mm:g037911910:03791_1910-0010/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Milford, Massachusetts | 1910 | sanborn03791_005 p10","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.91"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-19T17:20:32Z","modified":"2026-10-19T17:20:32Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764mm:g037911910:03791_1910-0010/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764mm:g037911910:03791_1910-0010","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"36.5,1912.0 131.8,1912.0 147.1,1775.2 445.1,1797.9 1593.4,1864.1 1612.0,1864.0 1612.0,1675.3 1579.3,1532.1 1472.0,1088.5 1455.6,934.9 1456.7,669.9 1452.7,235.7 1458.4,170.7 1462.9,131.3 1426.0,235.6 1145.7,211.6 870.3,193.6 606.2,168.0 583.4,172.3 100.5,84.3 101.8,547.9 109.2,679.5 106.2,829.2 102.7,875.8 100.3,907.3 1.0,895.7 1.0,970.8 79.7,980.9 55.2,1836.5 36.5,1912.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764mm:g037911910:03791_1910-0010/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1443.0,145.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.52324616898957,42.142414713789854]}},{"type":"Feature","properties":{"resourceCoords":[178.0,1826.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.5254530851934,42.13890112869703]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764mm:g037911910:03791_1910-0011/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Milford, Massachusetts | 1910 | sanborn03791_005 p11","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.90"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-19T17:20:32Z","modified":"2026-10-19T17:20:32Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764mm:g037911910:03791_1910-0011/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764mm:g037911910:03791_1910-0011","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"483.7,1903.3 514.4,1912.0 781.8,1912.0 778.9,1888.6 1403.1,1849.2 1567.4,1740.3 1525.0,124.9 1022.7,253.0 685.2,35.3 106.8,24.7 26.1,212.2 1.0,215.2 1.0,452.8 35.6,460.0 100.0,584.3 39.9,605.1 113.9,1092.0 125.4,1112.3 187.3,1371.1 259.9,1638.3 328.6,1912.0 444.1,1912.0 483.7,1903.3\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764mm:g037911910:03791_1910-0011/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[778.0,718.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.52604090442902,42.143330565208906]}},{"type":"Feature","properties":{"resourceCoords":[484.0,18.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.52785030188011,42.14295082886162]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764mm:g037911910:03791_1910-0012__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Milford, Massachusetts | 1910 | sanborn03791_005 p12 [2]","metadata":[{"label":"streets","value":"5"},{"label":"intersections","value":"9"},{"label":"confidence","value":"0.93"},{"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":"2026-10-19T17:20:32Z","modified":"2026-10-19T17:20:32Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764mm:g037911910:03791_1910-0012__2/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764mm:g037911910:03791_1910-0012","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1.0,717.2 1.0,898.5 23.4,886.6 57.6,1015.7 654.7,1040.8 682.9,1040.5 682.9,1041.9 684.4,1042.0 744.9,1872.4 1002.1,1883.5 1552.9,1733.7 1472.7,1322.0 1488.2,1157.8 1553.9,1164.1 1577.0,1060.2 1571.0,493.3 1461.1,1.0 1203.2,1.0 749.0,89.0 105.1,221.8 45.7,234.1 1.0,717.2\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764mm:g037911910:03791_1910-0012__2/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1094.0,1769.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.5146263,42.136326]}},{"type":"Feature","properties":{"resourceCoords":[749.0,89.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.5139243,42.1394204]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764mm:g037911910:03791_1910-0013__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Milford, Massachusetts | 1910 | sanborn03791_005 p13 [1]","metadata":[{"label":"streets","value":"5"},{"label":"intersections","value":"6"},{"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":"2026-10-19T17:20:32Z","modified":"2026-10-19T17:20:32Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764mm:g037911910:03791_1910-0013__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764mm:g037911910:03791_1910-0013","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"121.2,1263.2 75.3,1486.5 106.2,1468.0 123.5,1491.1 126.7,1824.5 127.2,1866.5 246.9,1845.1 425.9,1886.6 868.7,1883.7 994.6,1795.9 1171.2,1788.4 1477.2,1670.3 1499.4,1542.9 1350.8,1317.3 1269.1,1357.0 1215.0,1381.7 1172.8,1262.0 1069.2,1262.0 1069.2,967.5 734.1,15.3 671.2,19.9 309.3,46.5 176.8,48.9 126.0,50.0 126.0,76.9 126.0,148.4 126.5,799.7 121.2,1263.2\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764mm:g037911910:03791_1910-0013__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[126.0,837.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.5138329,42.1394081]}},{"type":"Feature","properties":{"resourceCoords":[126.0,50.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.515766,42.1396489]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764mm:g037911910:03791_1910-0014__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Milford, Massachusetts | 1910 | sanborn03791_005 p14 [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":"2026-10-19T17:20:32Z","modified":"2026-10-19T17:20:32Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764mm:g037911910:03791_1910-0014__2/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764mm:g037911910:03791_1910-0014","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"626.5,1168.5 681.3,1206.6 705.1,1261.3 581.4,1429.8 486.6,1586.4 1027.8,1888.8 1069.5,1912.0 1076.9,1912.0 1090.6,1912.0 1109.9,1875.5 1173.1,1756.8 1328.2,1422.8 1386.3,1297.2 1440.5,1163.5 1469.5,949.3 1501.8,599.2 1511.7,428.9 1514.2,289.3 1508.0,56.6 1271.0,99.5 948.9,175.6 874.6,198.2 822.8,159.4 760.6,136.9 445.1,95.2 209.0,22.9 219.1,32.9 178.1,145.7 136.7,189.1 90.3,266.1 79.3,305.4 94.6,367.6 24.7,444.9 54.0,483.6 133.0,455.3 308.2,708.5 601.0,1143.8 626.5,1168.5\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764mm:g037911910:03791_1910-0014__2/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[721.0,1236.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.51717241874117,42.14060138165838]}},{"type":"Feature","properties":{"resourceCoords":[1614.0,-55.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.51616797871094,42.143359247342985]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764mm:g037911910:03791_1910-0015/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Milford, Massachusetts | 1910 | sanborn03791_005 p15","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.77"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-19T17:20:32Z","modified":"2026-10-19T17:20:32Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764mm:g037911910:03791_1910-0015/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764mm:g037911910:03791_1910-0015","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"82.6,1405.2 74.5,1532.3 134.2,1530.8 158.7,1529.5 225.3,1526.2 273.9,1793.0 275.2,1791.0 870.9,1790.7 878.6,1852.9 995.0,1745.1 1368.5,1759.4 1401.0,1623.9 1514.0,1530.4 1546.8,1048.2 1612.0,1063.9 1612.0,918.0 1549.9,579.6 1542.5,506.1 1507.0,271.4 1469.3,95.1 1241.1,125.5 1103.5,137.6 935.0,145.6 587.3,150.5 373.6,144.3 236.4,105.0 166.9,81.4 102.5,1092.5 1.0,1331.2 1.0,1370.5 82.6,1405.2\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764mm:g037911910:03791_1910-0015/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[188.0,170.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.51539864134818,42.14084293502211]}},{"type":"Feature","properties":{"resourceCoords":[1384.0,1383.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.51316430331829,42.14350368120398]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764mm:g037911910:03791_1910-0016__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Milford, Massachusetts | 1910 | sanborn03791_005 p16 [1]","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.90"},{"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":"2026-10-19T17:20:32Z","modified":"2026-10-19T17:20:32Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764mm:g037911910:03791_1910-0016__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764mm:g037911910:03791_1910-0016","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1244.7,1098.5 1056.6,749.0 702.0,79.4 660.8,1.0 544.9,1.0 534.0,1.6 1.0,211.2 1.0,307.1 115.1,317.1 39.4,1345.6 101.4,1632.5 1.0,1633.6 1.0,1649.4 465.7,1892.4 503.2,1912.0 751.9,1912.0 1068.2,1859.2 1134.8,1862.6 1196.2,1884.7 1261.0,1841.0 1549.0,1672.7 1244.7,1098.5\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764mm:g037911910:03791_1910-0016__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[838.0,1884.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.51854143355665,42.14244702557396]}},{"type":"Feature","properties":{"resourceCoords":[731.0,66.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.51899878725918,42.145718512000464]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764mm:g037911910:03791_1910-0017/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Milford, Massachusetts | 1910 | sanborn03791_005 p17","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.80"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-19T17:20:32Z","modified":"2026-10-19T17:20:32Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764mm:g037911910:03791_1910-0017/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764mm:g037911910:03791_1910-0017","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"801.8,1877.3 1113.1,1912.0 1321.7,1912.0 1365.2,1837.2 1519.5,1840.5 1582.1,1599.2 1594.0,998.8 1474.1,252.1 1504.8,139.8 1229.7,31.4 786.2,33.1 768.1,22.6 753.8,83.8 561.7,47.3 319.2,7.5 57.9,1.0 50.8,1.0 53.6,761.2 57.6,1159.4 60.1,1811.5 303.6,1813.4 487.4,1828.5 727.6,1862.9 801.8,1877.3\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764mm:g037911910:03791_1910-0017/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[448.0,743.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.51732769021947,42.14489829415274]}},{"type":"Feature","properties":{"resourceCoords":[448.0,1837.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.51598993226445,42.14319750436126]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764mm:g037911910:03791_1910-0018/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Milford, Massachusetts | 1910 | sanborn03791_005 p18","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.96"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-19T17:20:32Z","modified":"2026-10-19T17:20:32Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764mm:g037911910:03791_1910-0018/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764mm:g037911910:03791_1910-0018","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"808.7,1675.9 781.7,1672.7 221.4,1741.2 197.9,1832.0 145.6,1813.5 138.4,1611.4 47.6,1506.7 43.2,844.3 109.0,680.0 37.5,412.1 76.6,109.0 237.5,35.4 602.2,24.2 1237.1,234.3 1481.2,140.1 1581.8,263.2 1528.1,638.7 1586.5,1325.3 1540.3,1626.3 1612.0,1648.3 1612.0,1710.0 1420.5,1718.1 1180.2,1734.4 922.5,1788.2 902.4,1702.3 808.1,1677.9 808.7,1675.9\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764mm:g037911910:03791_1910-0018/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[911.0,1770.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.5191084773293,42.14571767631214]}},{"type":"Feature","properties":{"resourceCoords":[627.0,294.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.52085232345563,42.14815522182327]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764mm:g037911910:03791_1910-0019__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Milford, Massachusetts | 1910 | sanborn03791_005 p19 [1]","metadata":[{"label":"streets","value":"5"},{"label":"intersections","value":"5"},{"label":"confidence","value":"0.52"},{"label":"confidence_provisional","value":"true"},{"label":"confidence_model","value":"corpus-v2"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"2786.8"},{"label":"split_canvas_w","value":"2576.4"},{"label":"split_canvas_h","value":"4865.2"}],"created":"2026-10-19T17:20:32Z","modified":"2026-10-19T17:20:32Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764mm:g037911910:03791_1910-0019__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764mm:g037911910:03791_1910-0019","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"643.1,1736.0 643.1,1648.8 634.0,1644.8 580.0,929.1 410.4,724.2 34.6,742.0 42.9,1809.3 283.1,1806.9 293.4,1850.8 643.1,1736.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764mm:g037911910:03791_1910-0019__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[249.1,1629.2],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.5085504,42.1487098]}},{"type":"Feature","properties":{"resourceCoords":[249.1,927.6],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.5071209,42.1492646]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764mm:g037911910:03791_1910-0020/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Milford, Massachusetts | 1910 | sanborn03791_005 p20","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.97"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-19T17:20:32Z","modified":"2026-10-19T17:20:32Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764mm:g037911910:03791_1910-0020/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764mm:g037911910:03791_1910-0020","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1101.6,70.8 1101.7,112.4 1439.5,82.6 1457.8,4.4 1538.1,64.8 1550.8,27.7 1589.2,407.6 1572.6,951.8 1507.4,1049.7 1575.8,1205.0 1575.8,1696.3 1555.6,1842.6 1145.7,1893.5 55.6,1839.5 76.6,1703.5 140.8,1662.5 50.9,1565.7 102.0,1417.1 15.0,870.2 32.5,57.0 148.2,12.2 883.9,30.4 885.6,22.7 1101.6,70.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764mm:g037911910:03791_1910-0020/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1097.0,1130.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.51088426914798,42.147244975541376]}},{"type":"Feature","properties":{"resourceCoords":[1097.0,297.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.50931089519045,42.14825113381566]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764mm:g037911910:03791_1910-0021__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Milford, Massachusetts | 1910 | sanborn03791_005 p21 [1]","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.20"},{"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":"3804.4"},{"label":"split_canvas_h","value":"5006.8"}],"created":"2026-10-19T17:20:32Z","modified":"2026-10-19T17:20:32Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764mm:g037911910:03791_1910-0021__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764mm:g037911910:03791_1910-0021","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"519.4,1166.3 838.4,1206.7 878.4,119.6 590.8,28.7 39.1,36.5 31.9,417.3 147.2,856.6 135.8,1059.6 44.6,1178.1 87.7,1222.4 382.6,1230.3 519.4,1166.3\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764mm:g037911910:03791_1910-0021__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":[-71.53356887449169,42.137127462079135]}},{"type":"Feature","properties":{"resourceCoords":[951.1,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.53160718057896,42.138036866961585]}},{"type":"Feature","properties":{"resourceCoords":[951.1,1251.7],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.53000397723018,42.13610824308755]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1251.7],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.53196567114291,42.1351988382051]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764mm:g037911910:03791_1910-0021__4/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Milford, Massachusetts | 1910 | sanborn03791_005 p21 [4]","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.48"},{"label":"confidence_provisional","value":"true"},{"label":"confidence_model","value":"corpus-v2"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"4972.0"},{"label":"split_canvas_w","value":"4278.0"},{"label":"split_canvas_h","value":"2680.0"}],"created":"2026-10-19T17:20:32Z","modified":"2026-10-19T17:20:32Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764mm:g037911910:03791_1910-0021__4/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764mm:g037911910:03791_1910-0021","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"61.6,1570.7 33.5,1824.9 110.1,1908.5 977.5,1911.2 1032.1,1878.3 1052.9,1504.8 912.1,1282.4 700.5,1329.8 641.3,1257.9 337.5,1300.0 125.8,1250.7 125.8,1250.7 90.7,1414.9 114.8,1536.0 71.9,1537.3 1.0,1539.5 1.0,1569.0 61.6,1570.7\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764mm:g037911910:03791_1910-0021__4/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,1243.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.5114461403806,42.13965786860194]}},{"type":"Feature","properties":{"resourceCoords":[1069.5,1243.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.50888740601125,42.13929783775668]}},{"type":"Feature","properties":{"resourceCoords":[1069.5,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.50918975026285,42.1380996063963]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.5117484846322,42.13845963724156]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764mm:g037911910:03791_1910-0022__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Milford, Massachusetts | 1910 | sanborn03791_005 p22 [1]","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":"0.0"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"6452.0"},{"label":"split_canvas_h","value":"7652.0"}],"created":"2026-10-19T17:20:32Z","modified":"2026-10-19T17:20:32Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764mm:g037911910:03791_1910-0022__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764mm:g037911910:03791_1910-0022","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"180.0,1896.0 1147.0,1892.2 1149.7,1883.8 1488.9,1841.2 1531.3,1732.3 1513.2,1408.3 1370.7,1311.2 1511.7,1043.8 1199.5,934.1 1166.5,769.8 1175.8,496.6 1289.6,313.8 1383.2,312.9 1480.2,170.4 1446.5,48.0 1253.3,46.1 1058.7,127.9 779.4,114.8 585.2,19.3 190.3,85.3 178.3,988.2 179.4,1449.5 180.0,1896.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764mm:g037911910:03791_1910-0022__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[708.0,582.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.54191214425269,42.1333449807439]}},{"type":"Feature","properties":{"resourceCoords":[188.0,1866.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.54131200237002,42.1307798853862]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764mm:g037911910:03791_1910-0023__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Milford, Massachusetts | 1910 | sanborn03791_005 p23 [1]","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.74"},{"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":"2026-10-19T17:20:32Z","modified":"2026-10-19T17:20:32Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764mm:g037911910:03791_1910-0023__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764mm:g037911910:03791_1910-0023","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"44.0,180.6 65.7,1862.2 1215.8,1824.0 1565.6,1870.3 1554.0,1167.0 1499.4,1119.0 1122.7,1123.6 1114.7,1123.7 1114.7,1123.7 1143.5,845.5 1290.6,390.6 1513.1,380.4 1575.9,222.2 602.9,161.6 605.4,123.0 1.0,150.0 1.0,175.8 44.0,180.6\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764mm:g037911910:03791_1910-0023__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[608.0,1142.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.53984103020474,42.12924512860595]}},{"type":"Feature","properties":{"resourceCoords":[608.0,192.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.54123404254116,42.13068354793828]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764mm:g037911910:03791_1910-0024__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Milford, Massachusetts | 1910 | sanborn03791_005 p24 [2]","metadata":[{"label":"streets","value":"3"},{"label":"intersections","value":"3"},{"label":"confidence","value":"0.26"},{"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":"2026-10-19T17:20:32Z","modified":"2026-10-19T17:20:32Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764mm:g037911910:03791_1910-0024__2/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764mm:g037911910:03791_1910-0024","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"960.7,1888.1 959.1,1863.7 1533.6,1799.7 1533.1,1407.2 1532.0,963.5 1543.4,95.2 1277.8,36.8 125.5,59.7 34.3,206.2 156.6,623.8 144.2,957.4 188.8,977.1 129.7,1046.0 488.2,1057.7 567.5,1871.1 960.7,1888.1\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764mm:g037911910:03791_1910-0024__2/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[755.0,155.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.545372,42.1327106]}},{"type":"Feature","properties":{"resourceCoords":[1542.0,155.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.543611,42.133523]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764mm:g037911910:03791_1910-0002__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Milford, Massachusetts | 1910 | sanborn03791_005 p2 [1]","metadata":[{"label":"streets","value":"8"},{"label":"intersections","value":"8"},{"label":"confidence","value":"0.94"},{"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":"2026-10-19T17:20:32Z","modified":"2026-10-19T17:20:32Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764mm:g037911910:03791_1910-0002__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764mm:g037911910:03791_1910-0002","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1469.6,245.3 1145.3,427.7 1100.2,448.2 742.0,300.0 698.5,299.6 698.5,281.9 615.9,247.8 615.0,52.3 1.0,102.5 1.0,192.7 59.5,237.4 58.1,463.1 140.2,528.5 77.3,1056.7 228.1,1281.5 410.2,1334.1 411.0,1336.1 411.0,1336.8 429.3,1397.7 412.3,1617.6 306.9,1808.7 446.8,1870.5 767.4,1853.7 852.6,1457.4 853.5,1457.3 853.5,1454.5 878.1,1454.5 926.4,1449.0 1277.8,1454.2 1278.0,1454.5 1463.0,1758.8 1487.0,1654.5 1566.2,1641.1 1581.3,1484.1 1483.4,536.6 1593.0,384.6 1469.6,245.3\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764mm:g037911910:03791_1910-0002__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1223.0,384.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.5241348,42.133993]}},{"type":"Feature","properties":{"resourceCoords":[618.0,759.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.5258451,42.1342514]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764mm:g037911910:03791_1910-0003/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Milford, Massachusetts | 1910 | sanborn03791_005 p3","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.91"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-19T17:20:32Z","modified":"2026-10-19T17:20:32Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764mm:g037911910:03791_1910-0003/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764mm:g037911910:03791_1910-0003","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"260.4,29.4 449.9,39.8 957.3,67.8 1110.8,64.9 1194.7,53.8 1377.4,19.9 1424.8,218.3 1429.4,235.3 1505.1,989.9 1413.0,1113.2 1418.1,1118.7 1577.3,1563.4 1567.3,1563.8 1608.9,1838.8 1572.4,1771.9 1364.1,1814.7 1322.7,1877.5 1259.9,1836.1 514.8,1877.2 386.4,1824.9 412.1,1709.6 231.8,1494.1 141.3,1475.8 126.2,1300.7 38.6,1308.2 78.5,974.2 71.7,968.7 213.8,857.0 55.6,532.2 38.3,487.4 260.4,29.4\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764mm:g037911910:03791_1910-0003/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1313.0,1580.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.52027985042243,42.13457883019473]}},{"type":"Feature","properties":{"resourceCoords":[140.0,625.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.52403051706132,42.13404178353977]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764mm:g037911910:03791_1910-0004__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Milford, Massachusetts | 1910 | sanborn03791_005 p4 [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":"2026-10-19T17:20:32Z","modified":"2026-10-19T17:20:32Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764mm:g037911910:03791_1910-0004__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764mm:g037911910:03791_1910-0004","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1548.5,93.2 1039.8,97.3 208.0,110.4 45.2,112.9 43.8,107.0 21.4,133.1 29.7,1239.8 98.4,1524.7 154.6,1455.4 663.5,1803.3 991.0,1395.9 1080.7,1265.9 1121.8,1189.1 1203.0,1016.0 1213.6,1020.3 1351.2,700.0 1570.4,228.5 1612.0,135.0 1612.0,92.6 1548.5,93.2\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764mm:g037911910:03791_1910-0004__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1254.0,902.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.52305126474127,42.136746281974986]}},{"type":"Feature","properties":{"resourceCoords":[236.0,104.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.52539721761066,42.13833288171382]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764mm:g037911910:03791_1910-0005__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Milford, Massachusetts | 1910 | sanborn03791_005 p5 [1]","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"7"},{"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":"2026-10-19T17:20:32Z","modified":"2026-10-19T17:20:32Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764mm:g037911910:03791_1910-0005__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764mm:g037911910:03791_1910-0005","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"385.4,1875.5 796.0,1795.6 1235.8,1858.5 1568.0,1738.3 1515.5,1037.4 940.6,934.0 922.8,934.0 922.8,930.8 910.8,928.6 878.2,414.4 752.2,318.0 736.9,318.0 737.1,306.5 712.5,287.6 668.1,159.8 713.1,52.0 501.5,27.1 497.9,41.9 357.1,54.9 64.8,69.0 117.9,379.9 136.3,513.8 146.6,664.8 146.0,788.0 130.8,1702.0 127.9,1725.1 99.0,1830.2 385.4,1875.5\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764mm:g037911910:03791_1910-0005__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[146.0,788.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.5188347,42.1366636]}},{"type":"Feature","properties":{"resourceCoords":[529.0,39.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.517287,42.137647]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764mm:g037911910:03791_1910-0006/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Milford, Massachusetts | 1910 | sanborn03791_005 p6","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.94"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-19T17:20:32Z","modified":"2026-10-19T17:20:32Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764mm:g037911910:03791_1910-0006/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764mm:g037911910:03791_1910-0006","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1554.3,1737.7 1571.2,1643.8 1572.0,1621.2 1506.4,738.0 1496.2,619.1 1473.0,474.3 1443.5,346.8 1364.9,51.5 1207.9,53.0 1091.7,63.7 1011.5,59.4 860.0,62.9 730.4,72.0 534.1,63.1 382.0,49.9 291.3,31.5 95.0,1.0 88.4,1.0 85.6,22.1 64.4,145.6 19.1,409.1 16.9,589.8 1.0,608.3 1.0,609.3 16.2,647.2 15.0,747.7 1.0,1223.9 1.0,1600.0 194.7,1596.5 212.5,1595.7 973.1,1684.7 1074.8,1802.2 1081.3,1798.3 1554.3,1737.7\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764mm:g037911910:03791_1910-0006/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[53.0,262.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.52150788888898,42.138692102963226]}},{"type":"Feature","properties":{"resourceCoords":[1020.0,55.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.51912397067638,42.13820379147586]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764mm:g037911910:03791_1910-0007__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Milford, Massachusetts | 1910 | sanborn03791_005 p7 [1]","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.94"},{"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":"4408.0"},{"label":"split_canvas_h","value":"7652.0"}],"created":"2026-10-19T17:20:32Z","modified":"2026-10-19T17:20:32Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764mm:g037911910:03791_1910-0007__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764mm:g037911910:03791_1910-0007","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"38.8,1721.4 113.3,1715.8 109.0,1816.2 186.9,1816.3 335.6,1808.3 465.6,1791.3 988.3,1751.2 957.9,1615.8 942.4,1608.1 919.5,1596.7 919.5,1363.2 888.6,1359.0 836.4,933.0 910.2,715.2 864.6,510.6 917.4,231.1 745.2,38.6 100.4,24.2 53.5,98.7 72.2,1093.4 38.8,1721.4\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764mm:g037911910:03791_1910-0007__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[122.0,413.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.52959381558375,42.140199762360226]}},{"type":"Feature","properties":{"resourceCoords":[122.0,1574.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.52671996521069,42.14049022781588]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764mm:g037911910:03791_1910-0007__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Milford, Massachusetts | 1910 | sanborn03791_005 p7 [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":"3678.0"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"2774.0"},{"label":"split_canvas_h","value":"7652.0"}],"created":"2026-10-19T17:20:32Z","modified":"2026-10-19T17:20:32Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764mm:g037911910:03791_1910-0007__2/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764mm:g037911910:03791_1910-0007","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1557.2,1622.4 1562.2,475.1 1568.9,177.1 1431.9,169.2 1425.8,74.1 1287.9,47.7 1253.9,1.0 1247.0,1.0 1213.0,156.7 1038.4,957.6 928.0,1446.5 919.5,1532.9 1064.0,1642.4 1249.7,1836.2 1322.3,1912.0 1579.2,1912.0 1583.6,1880.0 1602.7,1707.3 1612.0,1642.5 1612.0,1639.0 1558.4,1641.9 1557.2,1622.4\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764mm:g037911910:03791_1910-0007__2/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1037.4,938.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.52347634758642,42.138228521395725]}},{"type":"Feature","properties":{"resourceCoords":[1552.0,1654.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.52191353506767,42.13937365471427]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764mm:g037911910:03791_1910-0008/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Milford, Massachusetts | 1910 | sanborn03791_005 p8","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.97"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-19T17:20:32Z","modified":"2026-10-19T17:20:32Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764mm:g037911910:03791_1910-0008/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764mm:g037911910:03791_1910-0008","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1169.2,1.6 1068.3,18.2 632.8,104.2 319.1,174.2 116.5,216.3 95.0,123.3 168.4,49.6 167.8,48.8 1.0,216.1 1.0,219.2 6.8,231.6 29.2,231.2 28.4,437.6 23.8,530.6 33.5,683.8 54.1,880.4 82.8,1007.9 109.1,1158.1 116.8,1238.6 144.9,1352.5 170.1,1508.5 251.4,1781.8 296.5,1912.0 300.9,1912.0 311.4,1912.0 309.1,1893.8 800.2,1834.3 872.0,1912.0 1075.5,1912.0 1561.5,1829.0 1556.3,1818.7 1544.3,1794.6 1553.2,1789.9 1515.0,1736.1 1241.9,1188.4 1406.4,1113.4 1601.0,1044.8 1612.0,987.0 1588.5,925.5 1581.5,891.1 1585.0,373.2 1582.9,69.2 1502.7,48.4 1500.4,1.0 1498.0,1.0 1404.1,22.7 1390.2,19.1 1309.0,1.3 1306.3,1.0 1193.5,1.0 1169.2,1.6\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764mm:g037911910:03791_1910-0008/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[895.0,1582.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.51714474121555,42.13891328393081]}},{"type":"Feature","properties":{"resourceCoords":[945.0,1700.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.51683451611234,42.138859462865604]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764mm:g037911910:03791_1910-0009__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Milford, Massachusetts | 1910 | sanborn03791_005 p9 [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":"2026-10-19T17:20:32Z","modified":"2026-10-19T17:20:32Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764mm:g037911910:03791_1910-0009__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764mm:g037911910:03791_1910-0009","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1549.5,775.4 1552.2,774.9 1570.7,700.5 1606.3,625.4 1612.0,614.5 1612.0,611.6 1612.0,410.8 1559.3,375.8 1540.9,339.9 1523.0,252.9 1524.0,193.7 1478.3,84.3 1422.8,82.3 907.9,65.0 901.3,51.5 79.7,37.9 32.3,281.1 1.0,294.5 1.0,615.9 40.7,688.9 73.4,745.3 326.5,1098.3 478.0,1315.8 579.8,1432.0 922.9,1733.3 1032.0,1831.7 1088.5,1912.0 1175.5,1912.0 1330.4,1837.3 1360.8,1823.7 1416.2,1912.0 1465.1,1912.0 1511.7,1912.0 1516.3,1704.8 1518.6,1383.2 1533.0,939.1 1539.5,837.0 1549.5,775.4\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764mm:g037911910:03791_1910-0009__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[924.0,1004.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.52148502087881,42.141201644729925]}},{"type":"Feature","properties":{"resourceCoords":[62.0,679.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.52313722165707,42.14237558668316]}}]}}]}