{"id":"https://data.mapsnap.org/runs/v2.0/iiif/chronoscope/sanborn03897_011.main.iiif.json","type":"AnnotationPage","@context":["http://www.w3.org/ns/anno.jsonld"],"label":"Worcester, Massachusetts | 1950 | mapsnap generated fit (2026-10-17)","creator":{"type":"Software","name":"mapsnap","homepage":"https://mapsnap.org"},"rights":"https://opendatacommons.org/licenses/odbl/1-0/","metadata":[{"label":"generated","value":"2026-10-17"},{"label":"run","value":"corpus-v2"},{"label":"pages","value":"83"},{"label":"placed","value":"65"},{"label":"unplaced","value":"18"},{"label":"fit sources","value":"georef-snap 38, georef 23, snap:0 4"},{"label":"key map","value":"georeferenced"},{"label":"split sheets","value":"14 sheet(s) cut into 29 panels"},{"label":"unplaced pages","value":"p0__2 (tier 2, 42.26289,-71.84430 +/-4128m); p209 (tier 2, 42.25136,-71.82331 +/-154m); p210 (tier 1, 42.24637,-71.82309 +/-515m); p221 (tier 2, 42.24530,-71.83371 +/-101m); p222 (tier 1, 42.24723,-71.83056 +/-530m); p224__2 (tier 2, 42.24216,-71.82668 +/-189m); p230__1 (tier 1, 42.24403,-71.83677 +/-181m); p233__2 (tier 2, 42.23056,-71.84743 +/-372m); p235__2 (tier 1, 42.23905,-71.83545 +/-387m); p236__2 (tier 1, 42.23168,-71.82568 +/-258m); p240 (tier 1, 42.25211,-71.83273 +/-508m); p249__2 (tier 2, 42.27313,-71.83498 +/-260m); p258__1 (tier 1, 42.27051,-71.84169 +/-509m); p258__2 (tier 1, 42.26758,-71.83951 +/-224m); p265__2 (tier 1, 42.28756,-71.82994 +/-255m); p265__3 (tier 2, 42.28146,-71.83463 +/-107m); p267__1 (tier 2, 42.26428,-71.82023 +/-100m); p267__2 (tier 1, 42.26518,-71.82056 +/-188m)"}],"items":[{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764wm:g03897195002:03897_02_1950-0201/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Worcester, Massachusetts | 1950 | sanborn03897_011 p201","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.99"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-17T03:27:35Z","modified":"2026-10-17T03:27:35Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764wm:g03897195002:03897_02_1950-0201/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764wm:g03897195002:03897_02_1950-0201","type":"ImageService3","width":1662,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1412.3,1311.5 1412.2,1332.7 1358.2,1818.3 1356.0,1853.5 982.5,1803.0 240.9,1722.0 189.7,1722.3 198.4,834.0 202.9,536.6 198.7,413.0 504.1,291.4 470.6,232.7 508.6,226.1 764.1,181.9 786.0,163.6 791.7,178.0 934.0,122.1 1134.7,613.5 1350.6,1157.5 1412.3,1311.5\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764wm:g03897195002:03897_02_1950-0201/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1352.0,1165.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.8221079910566,42.254668083361274]}},{"type":"Feature","properties":{"resourceCoords":[195.0,1716.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.82511516977338,42.255237198238746]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764wm:g03897195002:03897_02_1950-0202/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Worcester, Massachusetts | 1950 | sanborn03897_011 p202","metadata":[{"label":"streets","value":"10"},{"label":"intersections","value":"13"},{"label":"confidence","value":"0.97"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-17T03:27:35Z","modified":"2026-10-17T03:27:35Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764wm:g03897195002:03897_02_1950-0202/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764wm:g03897195002:03897_02_1950-0202","type":"ImageService3","width":1646,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"711.9,1866.5 393.9,1840.7 290.4,1839.6 286.2,1376.0 272.3,63.3 323.7,61.7 1069.0,124.0 1444.8,165.1 1437.5,405.9 1645.0,933.8 1645.0,1732.1 1477.4,1911.0 1481.9,1930.9 1470.8,1931.0 711.9,1866.5\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764wm:g03897195002:03897_02_1950-0202/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[283.0,1073.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.826724,42.253865]}},{"type":"Feature","properties":{"resourceCoords":[1069.0,124.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.8237849,42.2542136]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764wm:g03897195002:03897_02_1950-0203/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Worcester, Massachusetts | 1950 | sanborn03897_011 p203","metadata":[{"label":"streets","value":"7"},{"label":"intersections","value":"8"},{"label":"confidence","value":"0.99"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-17T03:27:35Z","modified":"2026-10-17T03:27:35Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764wm:g03897195002:03897_02_1950-0203/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764wm:g03897195002:03897_02_1950-0203","type":"ImageService3","width":1662,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"159.1,1559.9 352.5,1561.6 820.7,1560.2 1012.5,1557.1 1208.1,1560.3 1417.8,1557.7 1446.7,1546.7 1449.1,541.8 1452.2,489.6 1455.8,437.2 1438.2,369.8 1251.3,328.9 747.2,353.4 609.8,414.4 425.3,380.8 222.0,290.2 186.8,207.2 164.9,379.9 1.0,434.0 1.0,449.7 152.0,450.0 158.2,977.8 159.1,1559.9\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764wm:g03897195002:03897_02_1950-0203/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[152.0,450.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.8212687,42.2565841]}},{"type":"Feature","properties":{"resourceCoords":[1455.0,450.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.8182549,42.2558484]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764wm:g03897195002:03897_02_1950-0204/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Worcester, Massachusetts | 1950 | sanborn03897_011 p204","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.98"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-17T03:27:35Z","modified":"2026-10-17T03:27:35Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764wm:g03897195002:03897_02_1950-0204/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764wm:g03897195002:03897_02_1950-0204","type":"ImageService3","width":1646,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"562.8,1860.0 527.2,1717.1 490.0,1642.9 29.0,751.7 7.7,704.0 82.6,597.2 428.9,402.5 616.6,209.8 584.2,157.4 838.2,185.8 1312.0,42.2 1549.9,55.0 1600.8,20.3 1608.7,20.4 1591.3,142.6 1544.6,717.5 1526.9,986.1 1498.2,1228.7 1475.6,1390.0 1430.5,1618.3 1389.8,1899.8 935.9,1894.9 742.8,1889.4 564.9,1892.6 562.8,1860.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764wm:g03897195002:03897_02_1950-0204/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1511.0,987.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.8162269323077,42.253481915663286]}},{"type":"Feature","properties":{"resourceCoords":[1055.0,1410.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.81774205457235,42.25353856656448]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764wm:g03897195002:03897_02_1950-0205/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Worcester, Massachusetts | 1950 | sanborn03897_011 p205","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.96"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-17T03:27:35Z","modified":"2026-10-17T03:27:35Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764wm:g03897195002:03897_02_1950-0205/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764wm:g03897195002:03897_02_1950-0205","type":"ImageService3","width":1662,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"305.6,1243.5 338.6,755.4 337.9,734.2 269.4,582.8 448.0,505.0 878.1,311.8 1053.2,230.4 1234.5,153.2 1426.4,64.8 1448.4,42.8 1481.3,119.8 1508.4,265.8 1508.5,298.7 1503.5,382.0 1457.5,623.9 1338.0,1202.0 1284.2,1453.8 1270.1,1625.2 1278.3,1690.1 1316.8,1741.4 1355.6,1761.9 1105.8,1934.9 472.5,1932.1 301.9,1519.5 304.9,1278.9 305.6,1243.5\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764wm:g03897195002:03897_02_1950-0205/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1336.0,1204.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.82120087613812,42.25257280308836]}},{"type":"Feature","properties":{"resourceCoords":[312.0,1840.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.82406811348844,42.25296329604161]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764wm:g03897195002:03897_02_1950-0206/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Worcester, Massachusetts | 1950 | sanborn03897_011 p206","metadata":[{"label":"streets","value":"8"},{"label":"intersections","value":"6"},{"label":"confidence","value":"0.98"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-17T03:27:35Z","modified":"2026-10-17T03:27:35Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764wm:g03897195002:03897_02_1950-0206/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764wm:g03897195002:03897_02_1950-0206","type":"ImageService3","width":1646,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"117.4,1940.0 1.0,1940.2 1.0,1948.0 214.0,1948.0 215.0,1939.0 349.0,1933.0 644.0,1939.0 982.0,1937.9 1037.5,1895.7 1051.9,1899.5 1095.6,1668.9 1179.7,1272.0 1231.5,1003.0 1270.0,826.0 1284.6,737.9 1326.0,546.2 1365.7,348.1 909.8,316.3 716.1,299.3 537.0,291.9 532.1,375.1 486.6,616.6 368.2,1193.9 314.9,1445.3 301.2,1616.5 309.4,1681.3 347.9,1732.3 386.7,1752.8 117.4,1940.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764wm:g03897195002:03897_02_1950-0206/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1161.0,1360.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.820046,42.251395]}},{"type":"Feature","properties":{"resourceCoords":[1270.0,826.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.8189791,42.2519709]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764wm:g03897195002:03897_02_1950-0207__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Worcester, Massachusetts | 1950 | sanborn03897_011 p207 [1]","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"8"},{"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":"6648.0"},{"label":"split_canvas_h","value":"7796.0"}],"created":"2026-10-17T03:27:35Z","modified":"2026-10-17T03:27:35Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764wm:g03897195002:03897_02_1950-0207__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764wm:g03897195002:03897_02_1950-0207","type":"ImageService3","width":1662,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"102.5,1859.3 569.5,1846.7 569.8,1934.7 735.0,1936.0 1030.4,1934.0 1031.2,1800.5 1032.5,1657.2 984.5,1710.5 979.5,944.7 1546.8,944.8 1596.3,947.9 1571.7,870.2 1368.0,301.9 1312.6,134.9 1312.4,133.8 1301.2,133.8 534.2,62.8 212.8,34.2 108.1,32.4 107.9,61.2 106.3,266.1 1.0,454.0 1.0,457.8 16.0,488.0 17.0,583.0 7.6,590.5 10.0,591.0 9.0,618.0 18.0,619.0 18.0,635.0 12.0,636.0 9.0,649.0 11.0,667.0 1.0,669.7 1.0,670.1 19.0,672.0 19.0,696.0 1.0,697.0 1.0,716.2 18.0,720.0 18.0,740.0 10.0,742.0 9.0,753.0 1.0,753.0 1.0,753.3 9.0,756.0 9.0,773.0 1.0,773.9 1.0,1930.0 102.5,1930.8 102.5,1882.2 102.5,1859.3\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764wm:g03897195002:03897_02_1950-0207__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[563.0,943.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.828532,42.251082]}},{"type":"Feature","properties":{"resourceCoords":[975.0,104.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.8264771,42.2517281]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764wm:g03897195002:03897_02_1950-0207__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Worcester, Massachusetts | 1950 | sanborn03897_011 p207 [2]","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.84"},{"label":"confidence_provisional","value":"true"},{"label":"confidence_model","value":"corpus-v2"},{"label":"split_canvas_x","value":"4121.2"},{"label":"split_canvas_y","value":"4828.0"},{"label":"split_canvas_w","value":"2526.8"},{"label":"split_canvas_h","value":"2968.0"}],"created":"2026-10-17T03:27:35Z","modified":"2026-10-17T03:27:35Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764wm:g03897195002:03897_02_1950-0207__2/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764wm:g03897195002:03897_02_1950-0207","type":"ImageService3","width":1662,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1034.9,1402.5 1034.8,1413.5 1030.4,1935.0 1192.2,1939.0 1193.2,1948.0 1661.0,1948.0 1661.0,1406.2 1557.0,1408.2 1554.6,1303.6 1077.5,1325.7 1078.0,1349.0 1079.6,1432.3 1034.9,1402.5\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764wm:g03897195002:03897_02_1950-0207__2/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1091.3,1868.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.83161757817956,42.24967530678555]}},{"type":"Feature","properties":{"resourceCoords":[1551.0,1541.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.8303082504572,42.2495644757762]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764wm:g03897195002:03897_02_1950-0208/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Worcester, Massachusetts | 1950 | sanborn03897_011 p208","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.98"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-17T03:27:35Z","modified":"2026-10-17T03:27:35Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764wm:g03897195002:03897_02_1950-0208/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764wm:g03897195002:03897_02_1950-0208","type":"ImageService3","width":1646,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1504.9,1902.0 1504.5,1926.2 1521.4,1926.0 1634.8,1352.2 1632.0,1352.0 1632.0,1322.0 1645.0,1300.0 1632.0,1298.0 1630.0,1187.0 1630.2,1161.0 1632.0,852.0 1572.0,851.0 1570.0,806.0 1631.0,803.0 1631.0,786.0 1637.1,785.6 1645.0,763.0 1630.0,762.0 1632.0,607.0 1645.0,606.0 1645.0,151.0 1630.0,150.0 1630.0,57.0 1645.0,32.0 1550.2,32.6 1550.4,24.2 996.0,18.0 995.0,1.0 641.8,1.0 639.0,16.0 620.0,16.0 619.0,1.0 505.8,1.0 521.0,5.0 521.0,21.0 497.0,23.0 324.5,18.8 158.5,284.9 167.2,304.5 253.7,454.6 562.7,962.0 601.8,1032.0 553.4,1038.8 6.6,1151.1 163.0,1888.4 198.8,1827.5 220.6,1938.4 373.0,1932.0 631.0,1939.0 1322.0,1937.0 1323.0,1928.0 1474.2,1926.5 1504.9,1902.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764wm:g03897195002:03897_02_1950-0208/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[12.0,1138.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.82774860123867,42.250604848379545]}},{"type":"Feature","properties":{"resourceCoords":[1529.0,430.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.82414202690315,42.249219454480865]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764wm:g03897195002:03897_02_1950-0211/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Worcester, Massachusetts | 1950 | sanborn03897_011 p211","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.98"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-17T03:27:35Z","modified":"2026-10-17T03:27:35Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764wm:g03897195002:03897_02_1950-0211/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764wm:g03897195002:03897_02_1950-0211","type":"ImageService3","width":1662,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1.0,55.9 1.0,489.1 15.0,490.0 17.0,583.0 1.0,584.9 1.0,589.1 9.0,590.0 9.0,622.0 1.0,622.9 1.0,631.0 19.0,632.0 18.0,649.0 10.0,651.0 10.0,668.0 1.0,670.7 1.0,671.1 19.0,673.0 19.0,696.0 1.0,697.9 1.0,718.1 19.0,721.0 19.0,739.0 1.0,740.0 1.0,777.1 10.0,778.0 10.0,798.0 1.0,798.9 1.0,836.0 20.0,837.0 21.0,851.0 81.0,851.0 79.0,902.0 13.0,901.0 12.0,894.0 1.0,893.1 1.0,1930.0 67.7,1930.2 80.4,1930.2 15.2,1611.0 53.9,1612.4 128.2,1930.4 186.6,1930.6 194.4,1770.1 576.3,1767.5 930.3,1760.1 956.4,1761.8 988.2,1763.0 1436.6,1756.2 1386.7,1061.0 1368.2,766.4 1364.4,655.7 1347.7,510.7 1342.2,313.0 1111.0,272.4 1114.6,258.0 926.2,16.9 534.0,14.0 441.0,18.0 60.3,18.0 16.9,59.0 1.0,55.9\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764wm:g03897195002:03897_02_1950-0211/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[914.0,1412.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.81943458314505,42.24915645532499]}},{"type":"Feature","properties":{"resourceCoords":[914.0,230.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.8215234980138,42.25060630882753]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764wm:g03897195002:03897_02_1950-0212/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Worcester, Massachusetts | 1950 | sanborn03897_011 p212","metadata":[{"label":"streets","value":"5"},{"label":"intersections","value":"9"},{"label":"confidence","value":"0.97"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-17T03:27:35Z","modified":"2026-10-17T03:27:35Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764wm:g03897195002:03897_02_1950-0212/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764wm:g03897195002:03897_02_1950-0212","type":"ImageService3","width":1660,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"659.0,380.1 930.6,426.6 1109.4,461.8 1198.3,474.6 1391.9,512.3 1260.0,1232.8 1169.0,1743.0 822.7,1752.0 362.6,1754.6 307.8,1055.7 287.2,759.5 282.8,648.2 264.9,502.5 258.1,303.6 659.0,380.1\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764wm:g03897195002:03897_02_1950-0212/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[765.0,398.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.8196617,42.251604]}},{"type":"Feature","properties":{"resourceCoords":[1169.0,1743.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.8166427,42.2504746]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764wm:g03897195002:03897_02_1950-0213/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Worcester, Massachusetts | 1950 | sanborn03897_011 p213","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.98"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-17T03:27:35Z","modified":"2026-10-17T03:27:35Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764wm:g03897195002:03897_02_1950-0213/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764wm:g03897195002:03897_02_1950-0213","type":"ImageService3","width":1662,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"251.2,1835.8 229.2,1581.5 209.1,1310.6 236.8,792.5 279.5,60.4 482.6,71.4 770.4,88.5 1005.0,114.6 1169.8,123.6 1417.3,131.9 1396.2,443.6 1381.0,621.8 1373.4,803.9 1347.5,1055.8 1295.0,1309.8 1259.6,1459.7 1276.6,1459.8 1204.8,1758.2 675.8,1698.2 673.4,1803.1 629.1,1863.5 560.7,1882.9 260.1,1889.4 251.2,1835.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764wm:g03897195002:03897_02_1950-0213/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1359.0,1101.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.81482596602454,42.25206348717333]}},{"type":"Feature","properties":{"resourceCoords":[225.0,472.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.81789438693487,42.251646211037986]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764wm:g03897195002:03897_02_1950-0214/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Worcester, Massachusetts | 1950 | sanborn03897_011 p214","metadata":[{"label":"streets","value":"8"},{"label":"intersections","value":"13"},{"label":"confidence","value":"0.70"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-17T03:27:35Z","modified":"2026-10-17T03:27:35Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764wm:g03897195002:03897_02_1950-0214/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764wm:g03897195002:03897_02_1950-0214","type":"ImageService3","width":1660,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"269.2,1481.6 252.2,1481.4 287.4,1331.2 339.6,1076.7 365.1,824.3 372.4,641.9 387.3,463.3 408.0,151.0 681.3,145.5 1267.2,142.6 1398.5,149.9 1463.7,184.5 1416.6,253.8 1488.1,322.2 1482.0,748.9 1361.7,895.6 1522.9,1812.6 1479.2,1828.5 1446.2,1853.0 1459.5,1921.8 197.8,1780.6 269.2,1481.6\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764wm:g03897195002:03897_02_1950-0214/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1365.0,1489.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.812384,42.252701]}},{"type":"Feature","properties":{"resourceCoords":[408.0,151.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.8161983,42.2534625]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764wm:g03897195002:03897_02_1950-0215/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Worcester, Massachusetts | 1950 | sanborn03897_011 p215","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.97"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-17T03:27:35Z","modified":"2026-10-17T03:27:35Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764wm:g03897195002:03897_02_1950-0215/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764wm:g03897195002:03897_02_1950-0215","type":"ImageService3","width":1662,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"136.4,65.0 124.3,20.5 28.0,21.0 18.0,27.0 1.0,27.0 1.0,490.1 15.0,491.0 16.0,585.0 1.0,586.0 1.0,591.1 9.0,592.0 10.0,632.0 19.0,633.0 18.0,650.0 1.0,651.0 1.0,651.1 10.0,652.0 10.0,669.0 1.0,671.7 1.0,672.1 19.0,674.0 19.0,697.0 1.0,698.9 1.0,719.1 19.0,722.0 19.0,741.0 1.0,742.0 1.0,797.2 11.0,799.0 11.0,815.0 1.0,815.9 1.0,836.1 21.0,839.0 21.0,866.0 13.0,867.0 13.0,890.0 21.0,891.0 21.0,918.0 13.0,919.0 15.0,938.0 2.9,938.8 3.6,939.7 21.0,943.0 21.0,961.9 79.1,1036.0 1.0,1030.3 1.0,1084.1 140.0,1093.2 287.1,1250.8 314.9,1252.7 306.4,1698.0 534.6,1716.1 1128.4,1776.2 1180.0,1317.5 1200.5,1318.8 1190.7,1168.8 1156.8,655.8 1163.8,650.0 1146.2,494.4 1122.3,133.9 1105.5,134.0 1079.0,133.3 722.3,155.3 337.2,173.5 335.9,335.8 277.0,337.9 189.0,20.2 164.2,20.4 149.9,20.4 228.8,339.8 147.7,342.8 136.4,65.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764wm:g03897195002:03897_02_1950-0215/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[327.0,165.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.82002600795086,42.247773963877925]}},{"type":"Feature","properties":{"resourceCoords":[1120.0,1785.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.81594319841363,42.246709442684825]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764wm:g03897195002:03897_02_1950-0216/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Worcester, Massachusetts | 1950 | sanborn03897_011 p216","metadata":[{"label":"streets","value":"8"},{"label":"intersections","value":"9"},{"label":"confidence","value":"0.90"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-17T03:27:35Z","modified":"2026-10-17T03:27:35Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764wm:g03897195002:03897_02_1950-0216/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764wm:g03897195002:03897_02_1950-0216","type":"ImageService3","width":1660,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"279.2,1158.0 234.9,645.1 241.8,639.2 221.0,483.8 189.9,123.3 205.2,123.0 657.1,88.5 1118.8,60.9 1465.8,33.0 1467.3,305.6 1471.9,561.8 1477.0,616.0 1484.8,670.4 1479.7,840.7 1476.3,1151.3 1467.8,1337.9 1459.1,1399.7 1443.9,1620.0 1437.9,1707.4 1435.8,1737.3 810.4,1814.9 618.0,1799.1 265.4,1770.3 229.1,1767.3 271.5,1307.2 292.1,1308.0 279.2,1158.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764wm:g03897195002:03897_02_1950-0216/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[282.0,1108.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.8169365,42.247646]}},{"type":"Feature","properties":{"resourceCoords":[1477.0,616.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.8156637,42.2497362]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764wm:g03897195002:03897_02_1950-0217/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Worcester, Massachusetts | 1950 | sanborn03897_011 p217","metadata":[{"label":"streets","value":"10"},{"label":"intersections","value":"11"},{"label":"confidence","value":"0.95"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-17T03:27:35Z","modified":"2026-10-17T03:27:35Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764wm:g03897195002:03897_02_1950-0217/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764wm:g03897195002:03897_02_1950-0217","type":"ImageService3","width":1662,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"281.0,1935.0 535.8,1932.7 567.6,1895.8 768.4,1822.6 1385.8,1802.9 1594.3,1541.1 1422.2,966.1 1457.3,925.7 1356.4,844.1 1177.7,708.3 951.2,522.4 617.5,263.9 579.6,260.9 582.0,65.0 144.9,85.5 144.9,113.0 1.0,266.1 1.0,490.1 15.0,491.0 16.0,585.0 1.0,586.9 1.0,591.1 9.0,592.0 9.0,620.0 18.0,621.0 13.0,649.0 1.0,650.9 1.0,651.2 10.0,653.0 10.0,670.0 1.0,672.7 1.0,673.1 19.0,675.0 19.0,698.0 1.0,699.9 1.0,719.1 19.0,722.0 19.0,741.0 1.0,742.9 1.0,776.0 3.0,772.0 20.0,773.0 20.0,793.0 11.0,794.0 14.0,815.0 1.0,815.9 1.0,837.1 21.0,839.0 21.0,866.0 13.0,867.0 13.0,890.0 21.0,892.0 21.0,918.0 12.0,920.0 15.0,938.0 1.0,941.8 1.0,942.0 20.0,942.0 21.0,977.0 1.0,978.0 1.0,1000.0 23.0,1001.0 23.0,1026.0 1.0,1027.0 1.0,1930.0 281.0,1935.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764wm:g03897195002:03897_02_1950-0217/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[145.0,1802.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.8213938,42.2443553]}},{"type":"Feature","properties":{"resourceCoords":[145.0,60.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.8181692,42.2464111]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764wm:g03897195002:03897_02_1950-0218/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Worcester, Massachusetts | 1950 | sanborn03897_011 p218","metadata":[{"label":"streets","value":"9"},{"label":"intersections","value":"8"},{"label":"confidence","value":"0.98"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-17T03:27:35Z","modified":"2026-10-17T03:27:35Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764wm:g03897195002:03897_02_1950-0218/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764wm:g03897195002:03897_02_1950-0218","type":"ImageService3","width":1660,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"72.2,1815.2 72.9,1683.7 67.1,1456.2 70.8,1159.3 64.0,731.5 42.3,699.6 378.8,437.4 855.4,82.5 883.4,61.6 1636.9,1061.0 1636.0,1068.0 1573.0,1071.0 1575.0,1119.0 1634.0,1117.0 1635.0,1135.0 1659.0,1136.0 1647.8,1157.0 1636.0,1158.0 1634.0,1183.0 1638.0,1263.0 1639.0,1295.0 1650.0,1298.0 1644.0,1319.5 1639.0,1320.0 1639.0,1337.3 1024.1,1856.8 1005.1,1856.3 868.0,1849.8 639.6,1839.0 72.2,1815.2\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764wm:g03897195002:03897_02_1950-0218/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1084.0,383.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.815367,42.24621]}},{"type":"Feature","properties":{"resourceCoords":[436.0,1830.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.816802,42.2435883]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764wm:g03897195002:03897_02_1950-0219/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Worcester, Massachusetts | 1950 | sanborn03897_011 p219","metadata":[{"label":"streets","value":"9"},{"label":"intersections","value":"12"},{"label":"confidence","value":"0.80"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-17T03:27:35Z","modified":"2026-10-17T03:27:35Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764wm:g03897195002:03897_02_1950-0219/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764wm:g03897195002:03897_02_1950-0219","type":"ImageService3","width":1662,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"309.6,1885.1 518.8,1889.7 493.4,1902.3 1016.8,1892.0 1018.2,1884.5 1119.0,1832.6 1180.3,1539.1 1224.5,1487.4 1289.8,1500.2 1296.9,1445.0 1209.6,1409.0 1235.2,1259.4 1337.8,1102.2 1430.4,822.3 1596.5,590.9 1608.3,434.7 1531.7,325.4 1256.7,188.4 1224.3,65.1 1160.2,26.1 1170.1,1.0 1168.2,1.0 1160.3,4.5 1151.8,22.7 1173.3,49.2 356.9,376.4 380.2,422.1 375.2,458.4 350.2,482.6 222.4,555.1 239.7,575.5 281.9,646.9 361.2,775.6 406.2,854.7 418.7,882.4 489.9,1014.6 496.9,1027.5 259.5,1221.9 23.5,1345.2 22.9,1345.4 309.6,1885.1\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764wm:g03897195002:03897_02_1950-0219/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1093.0,1719.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.810355,42.246185]}},{"type":"Feature","properties":{"resourceCoords":[782.0,948.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.8125881,42.2487238]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764wm:g03897195002:03897_02_1950-0220/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Worcester, Massachusetts | 1950 | sanborn03897_011 p220","metadata":[{"label":"streets","value":"9"},{"label":"intersections","value":"8"},{"label":"confidence","value":"0.78"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-17T03:27:35Z","modified":"2026-10-17T03:27:35Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764wm:g03897195002:03897_02_1950-0220/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764wm:g03897195002:03897_02_1950-0220","type":"ImageService3","width":1660,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"115.0,1367.7 136.1,1351.1 357.8,1178.5 501.3,1068.0 508.6,1062.1 574.4,669.3 566.0,650.9 550.2,641.5 523.1,612.6 517.5,586.9 502.0,587.7 480.4,607.4 464.3,589.9 487.1,568.6 483.5,565.3 624.8,408.0 617.7,435.8 954.5,27.7 996.1,80.4 1088.0,136.6 1283.4,106.5 1455.5,137.5 1306.1,274.4 1342.5,326.6 1267.9,304.5 1182.7,371.6 1178.7,427.1 1242.1,701.1 1306.8,807.3 1401.3,1132.9 1437.0,1371.6 1531.5,1540.0 1533.4,1838.6 1409.9,1778.7 1065.9,1759.2 902.5,1878.5 829.4,1888.4 752.2,1820.7 571.5,1748.6 321.6,1721.7 164.9,1649.8 144.5,1667.3 115.0,1367.7\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764wm:g03897195002:03897_02_1950-0220/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1016.0,654.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.812212,42.243602]}},{"type":"Feature","properties":{"resourceCoords":[69.0,1404.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.8180956,42.2435912]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764wm:g03897195002:03897_02_1950-0223/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Worcester, Massachusetts | 1950 | sanborn03897_011 p223","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"5"},{"label":"confidence","value":"0.19"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-17T03:27:35Z","modified":"2026-10-17T03:27:35Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764wm:g03897195002:03897_02_1950-0223/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764wm:g03897195002:03897_02_1950-0223","type":"ImageService3","width":1659,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"990.0,16.4 901.0,44.8 893.2,49.5 594.1,58.9 346.1,137.4 224.5,124.6 173.7,152.5 125.8,121.4 96.0,389.0 125.3,571.4 90.8,757.9 125.9,1232.6 100.6,1250.8 76.0,1471.6 107.6,1714.4 163.3,1816.2 231.6,1836.2 817.1,1665.5 961.5,1687.8 1047.9,1821.3 1107.5,1841.5 1165.8,1948.0 1174.8,1948.0 1281.6,1822.7 1280.2,1821.1 1519.8,1471.2 1505.2,1419.8 1428.4,856.4 1461.3,857.3 1658.0,627.4 1658.0,1.0 1605.9,1.0 1605.0,9.0 1350.0,10.0 1332.0,9.0 1331.1,1.0 1318.4,1.0 1221.7,19.4 1221.4,19.6 1208.6,31.1 1203.1,36.0 1172.2,1.0 1104.9,1.0 1104.0,9.0 990.0,16.4\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764wm:g03897195002:03897_02_1950-0223/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1539.0,1529.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.826057,42.243594]}},{"type":"Feature","properties":{"resourceCoords":[1344.0,270.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.831702,42.245107]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764wm:g03897195002:03897_02_1950-0224__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Worcester, Massachusetts | 1950 | sanborn03897_011 p224 [1]","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":"6640.0"},{"label":"split_canvas_h","value":"7796.0"}],"created":"2026-10-17T03:27:35Z","modified":"2026-10-17T03:27:35Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764wm:g03897195002:03897_02_1950-0224__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764wm:g03897195002:03897_02_1950-0224","type":"ImageService3","width":1660,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"176.7,1559.8 98.2,1699.0 99.8,1790.6 235.3,1764.0 714.7,1813.8 1098.7,1765.3 1139.0,1809.1 1137.5,1794.7 1147.8,1707.1 766.6,1243.9 1192.7,745.3 1644.0,745.3 1644.0,729.0 1659.0,726.0 1659.0,705.0 1644.0,704.0 1644.0,676.0 1659.0,675.0 1659.0,653.0 1644.0,652.0 1643.0,614.0 1659.0,613.0 1659.0,295.0 1658.8,293.4 1659.0,262.3 1639.9,259.9 1634.2,289.7 1467.3,259.7 1411.8,251.1 1409.7,257.4 1399.4,253.5 1399.8,249.0 1384.9,246.4 1384.5,247.8 1108.2,141.5 1121.6,135.4 1103.3,101.9 1118.2,16.2 1020.0,17.0 854.0,9.0 853.1,1.0 713.9,1.0 713.0,9.0 582.0,16.0 437.0,17.0 280.0,9.3 318.2,164.0 184.2,431.1 152.5,437.9 358.8,957.3 384.7,1002.9 238.8,1393.2 240.5,1394.4 168.2,1539.2 159.6,1541.3 176.7,1559.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764wm:g03897195002:03897_02_1950-0224__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[406.0,1044.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.82612551939685,42.24358871884824]}},{"type":"Feature","properties":{"resourceCoords":[75.0,445.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.82931418568369,42.24416303813583]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764wm:g03897195002:03897_02_1950-0225/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Worcester, Massachusetts | 1950 | sanborn03897_011 p225","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.70"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-17T03:27:35Z","modified":"2026-10-17T03:27:35Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764wm:g03897195002:03897_02_1950-0225/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764wm:g03897195002:03897_02_1950-0225","type":"ImageService3","width":1659,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1396.2,1878.3 1141.3,1910.1 1144.8,1897.2 920.2,1833.2 782.7,1833.0 669.4,1873.3 417.9,1871.2 143.0,1794.4 100.7,1810.5 96.3,1767.4 103.0,1391.0 165.1,1357.0 198.5,1224.0 125.8,1118.0 44.6,620.1 35.2,201.5 70.5,61.4 312.2,42.0 499.9,85.3 678.8,42.5 1217.9,55.7 1304.2,31.6 1521.6,78.6 1549.5,58.9 1612.2,158.7 1614.8,285.3 1374.7,589.7 1418.0,598.1 1429.3,599.8 1494.2,606.6 1526.8,1262.1 1476.7,1270.7 1417.8,1716.5 1419.3,1749.5 1415.6,1804.3 1406.5,1848.8 1396.2,1878.3\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764wm:g03897195002:03897_02_1950-0225/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1075.0,497.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.85932181551043,42.242101481741884]}},{"type":"Feature","properties":{"resourceCoords":[1375.0,592.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.85777653625289,42.242032243540706]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764wm:g03897195002:03897_02_1950-0226/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Worcester, Massachusetts | 1950 | sanborn03897_011 p226","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.89"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-17T03:27:35Z","modified":"2026-10-17T03:27:35Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764wm:g03897195002:03897_02_1950-0226/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764wm:g03897195002:03897_02_1950-0226","type":"ImageService3","width":1660,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"210.3,384.6 209.7,384.6 164.7,379.6 383.9,49.0 1054.0,109.7 1148.0,52.2 1145.9,15.9 1157.9,15.8 1177.0,274.5 1197.4,273.9 1198.7,323.5 1180.7,324.3 1194.7,513.7 1194.0,571.5 1196.5,609.0 1224.4,608.7 1223.3,745.9 1183.2,726.8 1324.1,879.6 1333.4,879.3 1403.5,877.5 1421.2,877.2 1412.5,1707.8 1400.8,1707.1 1352.7,1715.1 1124.1,1792.4 765.1,1800.0 764.2,1793.0 527.8,1790.2 530.5,1808.3 285.6,1729.7 303.6,1660.9 309.0,1614.8 308.2,1558.6 303.9,1525.1 326.2,1065.5 376.6,1052.5 288.1,386.8 221.3,385.3 210.3,384.6\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764wm:g03897195002:03897_02_1950-0226/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[298.0,1540.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.85623998145998,42.238042450445484]}},{"type":"Feature","properties":{"resourceCoords":[1402.0,1704.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.85087482477091,42.238106603646365]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764wm:g03897195002:03897_02_1950-0227/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Worcester, Massachusetts | 1950 | sanborn03897_011 p227","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.94"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-17T03:27:35Z","modified":"2026-10-17T03:27:35Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764wm:g03897195002:03897_02_1950-0227/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764wm:g03897195002:03897_02_1950-0227","type":"ImageService3","width":1659,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1595.0,180.6 1563.6,782.7 1514.3,919.2 1487.7,1104.7 1474.1,1153.3 1535.9,1808.3 1518.4,1809.7 1475.5,1812.7 862.5,1861.6 573.6,1887.3 469.6,1892.3 359.3,1893.5 279.4,1891.0 259.6,1890.4 190.2,1889.0 181.1,1888.8 49.1,1731.5 87.8,1752.1 95.2,1616.8 67.6,1615.7 67.0,1578.7 70.2,1521.3 65.2,1334.0 83.0,1334.0 84.0,1285.0 63.9,1284.7 57.0,1028.4 45.1,1028.0 38.7,449.6 72.2,131.2 109.1,66.3 171.3,79.6 221.8,40.6 440.9,37.5 632.1,74.6 1292.0,16.3 1598.6,52.6 1595.0,180.6\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764wm:g03897195002:03897_02_1950-0227/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[798.0,1863.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.84898118535776,42.24151135939312]}},{"type":"Feature","properties":{"resourceCoords":[999.0,901.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.849002116144,42.24505071550856]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764wm:g03897195002:03897_02_1950-0228/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Worcester, Massachusetts | 1950 | sanborn03897_011 p228","metadata":[{"label":"streets","value":"11"},{"label":"intersections","value":"15"},{"label":"confidence","value":"0.88"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-17T03:27:35Z","modified":"2026-10-17T03:27:35Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764wm:g03897195002:03897_02_1950-0228/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764wm:g03897195002:03897_02_1950-0228","type":"ImageService3","width":1660,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"251.0,1847.4 165.8,1188.6 177.8,1139.0 198.1,951.0 243.1,811.5 253.6,202.9 252.8,73.5 676.7,108.9 946.5,60.8 1447.7,77.2 1542.3,318.6 1552.3,315.8 1507.9,641.1 1450.9,1120.1 1447.7,1167.6 1452.7,1232.3 1488.6,1593.0 1498.2,1675.1 1500.8,1697.0 934.1,1831.2 913.8,1823.5 867.7,1823.0 687.1,1801.0 646.4,1816.2 539.3,1815.7 459.4,1822.8 408.4,1830.1 285.8,1843.6 251.0,1847.4\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764wm:g03897195002:03897_02_1950-0228/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1187.0,1157.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.841667,42.245267]}},{"type":"Feature","properties":{"resourceCoords":[941.0,1128.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.8428585,42.2452155]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764wm:g03897195002:03897_02_1950-0229/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Worcester, Massachusetts | 1950 | sanborn03897_011 p229","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.97"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-17T03:27:35Z","modified":"2026-10-17T03:27:35Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764wm:g03897195002:03897_02_1950-0229/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764wm:g03897195002:03897_02_1950-0229","type":"ImageService3","width":1659,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"51.6,1035.7 56.4,202.4 58.9,202.4 139.9,200.8 251.7,193.8 356.9,183.3 648.4,142.2 1267.4,60.7 1310.7,55.4 1363.2,48.8 1486.3,33.1 1513.2,271.1 1557.5,592.0 1568.8,657.1 1586.3,710.9 1654.2,833.7 1658.0,859.9 1629.0,985.5 1624.1,1211.9 1601.2,1293.4 1589.7,1557.2 1598.9,1571.8 1541.4,1676.8 1536.3,1642.0 1087.7,1548.8 1087.7,1540.6 122.0,1854.0 122.2,1832.8 133.6,1753.6 115.3,1724.3 95.1,1733.7 89.3,1724.5 43.1,1035.2 51.6,1035.7\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764wm:g03897195002:03897_02_1950-0229/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1088.0,1497.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.84556774426291,42.237065644148394]}},{"type":"Feature","properties":{"resourceCoords":[269.0,1028.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.84979899709806,42.2382484668575]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764wm:g03897195002:03897_02_1950-0230__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Worcester, Massachusetts | 1950 | sanborn03897_011 p230 [2]","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.73"},{"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":"6640.0"},{"label":"split_canvas_h","value":"7796.0"}],"created":"2026-10-17T03:27:35Z","modified":"2026-10-17T03:27:35Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764wm:g03897195002:03897_02_1950-0230__2/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764wm:g03897195002:03897_02_1950-0230","type":"ImageService3","width":1660,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"132.7,262.9 133.8,492.3 143.0,802.4 147.0,865.6 158.2,918.6 210.2,1042.6 211.1,1068.0 170.6,1184.5 142.6,1399.7 147.9,1386.5 285.0,1423.9 763.3,1456.4 763.6,1458.8 764.0,1458.8 764.0,1461.5 806.9,1766.6 890.3,1793.2 946.5,1767.0 1069.9,1785.6 1197.4,1733.5 1293.5,1741.0 1334.8,1714.5 1388.8,1585.8 1537.1,1554.5 1497.8,1490.9 1532.4,1364.5 1609.7,1302.5 1624.1,1249.8 1574.0,949.2 1518.8,805.8 1617.8,194.7 1659.0,192.6 1659.0,183.3 1625.3,187.1 1440.0,208.4 1315.0,219.7 1192.2,237.6 1192.0,230.9 636.8,309.9 618.0,300.8 573.8,296.2 402.6,259.4 362.2,270.3 259.5,260.5 182.3,260.4 132.7,262.9\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764wm:g03897195002:03897_02_1950-0230__2/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1484.0,209.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.83834338076547,42.243929091535406]}},{"type":"Feature","properties":{"resourceCoords":[217.0,1070.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.84332301953512,42.23961616131547]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764wm:g03897195002:03897_02_1950-0231/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Worcester, Massachusetts | 1950 | sanborn03897_011 p231","metadata":[{"label":"streets","value":"14"},{"label":"intersections","value":"23"},{"label":"confidence","value":"0.91"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-17T03:27:35Z","modified":"2026-10-17T03:27:35Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764wm:g03897195002:03897_02_1950-0231/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764wm:g03897195002:03897_02_1950-0231","type":"ImageService3","width":1659,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"319.4,60.9 311.5,99.0 558.9,164.7 555.3,146.8 790.5,137.5 791.7,144.4 1148.2,118.5 1371.5,30.0 1418.9,19.6 1422.2,19.6 1500.0,700.5 1506.2,709.4 1525.7,699.1 1545.2,727.3 1537.6,806.3 1540.6,888.5 1545.3,1009.3 1540.5,1056.9 1450.5,1871.1 1369.9,1790.5 971.5,1825.9 847.8,1823.0 632.1,1916.4 375.1,1872.3 326.0,1836.4 103.9,1818.9 79.4,1766.8 40.5,1572.7 66.1,1442.4 86.0,1443.0 88.0,1396.0 86.0,1392.0 76.0,1391.8 76.2,1390.7 43.0,1045.3 69.2,812.9 38.6,342.5 66.5,127.7 319.4,60.9\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764wm:g03897195002:03897_02_1950-0231/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[566.0,204.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.854872,42.237098]}},{"type":"Feature","properties":{"resourceCoords":[466.0,874.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.8549896,42.234677]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764wm:g03897195002:03897_02_1950-0232/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Worcester, Massachusetts | 1950 | sanborn03897_011 p232","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.94"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-17T03:27:35Z","modified":"2026-10-17T03:27:35Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764wm:g03897195002:03897_02_1950-0232/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764wm:g03897195002:03897_02_1950-0232","type":"ImageService3","width":1662,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"810.5,1840.4 708.3,1803.0 642.0,1789.2 543.9,1792.0 141.8,1719.2 128.2,1593.8 106.3,1581.6 72.7,1593.0 85.2,1541.1 82.8,1539.0 130.2,721.7 132.5,674.0 121.5,553.6 116.1,492.7 1038.2,88.8 1039.1,96.9 1490.9,144.8 1499.3,178.8 1545.8,69.5 1584.4,119.4 1627.7,529.9 1620.4,1092.2 1631.1,1095.0 1593.5,1449.5 1578.0,1451.0 1578.0,1484.0 1583.0,1497.0 1588.4,1496.9 1579.5,1581.3 1585.8,1628.2 1585.9,1695.1 1558.9,1806.3 1529.5,1898.9 1527.0,1906.6 1038.0,1846.3 1033.5,1880.8 810.5,1840.4\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764wm:g03897195002:03897_02_1950-0232/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[671.0,1788.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.84681536513875,42.230764882821255]}},{"type":"Feature","properties":{"resourceCoords":[1107.0,748.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.84501356811128,42.23457303022072]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764wm:g03897195002:03897_02_1950-0233__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Worcester, Massachusetts | 1950 | sanborn03897_011 p233 [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":"6636.0"},{"label":"split_canvas_h","value":"7796.0"}],"created":"2026-10-17T03:27:35Z","modified":"2026-10-17T03:27:35Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764wm:g03897195002:03897_02_1950-0233__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764wm:g03897195002:03897_02_1950-0233","type":"ImageService3","width":1659,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1270.7,1.0 1265.7,1.0 1262.4,85.2 394.9,53.4 285.1,111.3 92.5,105.6 56.0,301.8 48.0,983.3 116.2,1484.9 73.2,1670.8 245.4,1729.1 205.3,1766.1 388.0,1738.8 431.4,1734.0 477.1,1736.7 524.9,1749.3 701.8,1824.5 751.8,1844.3 844.8,1361.8 810.7,1355.1 866.0,1136.0 910.1,1036.8 928.3,971.8 932.1,874.0 1031.7,478.9 1157.4,473.8 1171.0,452.9 1161.9,418.7 1212.7,434.6 1296.5,353.3 1270.7,1.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764wm:g03897195002:03897_02_1950-0233__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[571.0,1763.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.842930640454,42.22984435926008]}},{"type":"Feature","properties":{"resourceCoords":[151.0,322.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.84959836688488,42.22769043157605]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764wm:g03897195002:03897_02_1950-0234/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Worcester, Massachusetts | 1950 | sanborn03897_011 p234","metadata":[{"label":"streets","value":"13"},{"label":"intersections","value":"18"},{"label":"confidence","value":"0.67"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-17T03:27:35Z","modified":"2026-10-17T03:27:35Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764wm:g03897195002:03897_02_1950-0234/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764wm:g03897195002:03897_02_1950-0234","type":"ImageService3","width":1662,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"764.0,115.0 859.7,128.8 973.3,137.3 1039.0,126.3 1084.0,112.5 1569.9,84.2 1554.5,241.0 1621.1,951.2 1584.5,1034.3 1557.3,1497.6 1604.5,1768.3 1583.3,1891.2 1374.9,1882.8 1191.7,1826.4 529.1,1876.7 318.6,1811.8 260.2,1685.8 118.4,1700.6 95.1,1723.7 108.9,1139.2 204.8,1117.9 226.4,1036.3 201.5,797.4 180.7,742.9 107.5,727.9 117.5,534.4 57.4,212.2 57.0,100.9 237.6,118.0 207.1,163.2 378.4,94.8 419.4,80.1 464.5,72.3 513.8,73.6 703.0,106.0 764.0,115.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764wm:g03897195002:03897_02_1950-0234/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[764.0,115.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.842642,42.230553]}},{"type":"Feature","properties":{"resourceCoords":[842.0,1837.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.8342876,42.2301895]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764wm:g03897195002:03897_02_1950-0235__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Worcester, Massachusetts | 1950 | sanborn03897_011 p235 [1]","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.06"},{"label":"confidence_provisional","value":"true"},{"label":"confidence_model","value":"corpus-v2"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"3460.4"},{"label":"split_canvas_w","value":"6636.0"},{"label":"split_canvas_h","value":"4335.6"}],"created":"2026-10-17T03:27:35Z","modified":"2026-10-17T03:27:35Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764wm:g03897195002:03897_02_1950-0235__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764wm:g03897195002:03897_02_1950-0235","type":"ImageService3","width":1659,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1503.4,1248.8 1515.8,1127.5 731.7,985.9 574.1,1038.7 208.4,970.6 60.0,1231.3 143.4,1531.0 130.0,1736.5 213.3,1814.0 1441.8,1924.4 1557.8,1905.7 1606.8,1650.2 1540.1,1559.0 1602.7,1542.5 1608.5,1336.2 1503.4,1248.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764wm:g03897195002:03897_02_1950-0235__1/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,865.1],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.83223070985434,42.23829426088535]}},{"type":"Feature","properties":{"resourceCoords":[1659.0,865.1],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.83182674224993,42.23535194364751]}},{"type":"Feature","properties":{"resourceCoords":[1659.0,1949.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.83440499602918,42.23515512050372]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1949.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.83480896363359,42.23809743774156]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764wm:g03897195002:03897_02_1950-0236__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Worcester, Massachusetts | 1950 | sanborn03897_011 p236 [1]","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.89"},{"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":"6648.0"},{"label":"split_canvas_h","value":"7796.0"}],"created":"2026-10-17T03:27:35Z","modified":"2026-10-17T03:27:35Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764wm:g03897195002:03897_02_1950-0236__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764wm:g03897195002:03897_02_1950-0236","type":"ImageService3","width":1662,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"115.3,1515.5 66.4,1827.1 92.8,1881.6 176.7,1898.1 654.3,1799.8 1050.8,1775.1 1108.4,1740.9 1131.6,1645.3 1266.2,1635.6 1324.1,1710.3 1384.2,1657.2 1496.0,1645.3 1548.9,1596.5 1601.2,1123.0 1553.6,408.9 1606.8,209.7 1569.7,110.9 1154.0,77.0 1057.6,617.4 1016.4,655.2 1014.3,668.7 1012.7,679.1 998.8,678.9 990.7,678.8 955.4,711.2 94.6,705.5 71.5,853.7 95.9,1141.2 277.7,1109.3 305.6,1287.7 243.7,1472.5 115.3,1515.5\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764wm:g03897195002:03897_02_1950-0236__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[890.0,1062.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.82028105489304,42.232701948922625]}},{"type":"Feature","properties":{"resourceCoords":[861.0,1254.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.82048869372768,42.23202006750625]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764wm:g03897195002:03897_02_1950-0237/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Worcester, Massachusetts | 1950 | sanborn03897_011 p237","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.95"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-17T03:27:35Z","modified":"2026-10-17T03:27:35Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764wm:g03897195002:03897_02_1950-0237/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764wm:g03897195002:03897_02_1950-0237","type":"ImageService3","width":1659,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"552.8,1813.6 587.2,1806.5 588.1,1816.1 589.1,1816.0 974.8,1760.3 991.9,1728.8 1196.3,1765.2 1212.5,1825.5 1271.0,1862.8 1389.4,1887.6 1381.3,1948.0 1385.7,1948.0 1412.0,1879.9 1476.0,1788.6 1469.8,1782.3 1510.3,1731.8 1557.2,1729.7 1555.9,1705.7 1555.9,1705.4 1603.5,1615.9 1643.8,1565.7 1658.0,1540.1 1658.0,1.0 1628.9,1.0 1628.0,9.0 1490.0,12.0 1331.0,9.0 1330.1,1.0 1179.3,1.0 1105.5,8.6 1096.4,60.1 860.8,91.2 612.1,66.2 127.5,95.2 90.7,107.8 59.7,282.6 56.8,282.5 151.2,523.5 161.2,520.7 116.8,845.4 59.9,1323.7 56.7,1371.0 61.7,1435.7 97.5,1795.7 107.1,1877.8 110.5,1906.6 235.5,1876.5 363.6,1853.1 552.8,1813.6\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764wm:g03897195002:03897_02_1950-0237/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[640.0,947.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.83800711108704,42.24724846661882]}},{"type":"Feature","properties":{"resourceCoords":[119.0,856.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.84055982328152,42.24724315321689]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764wm:g03897195002:03897_02_1950-0238__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Worcester, Massachusetts | 1950 | sanborn03897_011 p238 [1]","metadata":[{"label":"streets","value":"9"},{"label":"intersections","value":"13"},{"label":"confidence","value":"0.95"},{"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":"6648.0"},{"label":"split_canvas_h","value":"7796.0"}],"created":"2026-10-17T03:27:35Z","modified":"2026-10-17T03:27:35Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764wm:g03897195002:03897_02_1950-0238__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764wm:g03897195002:03897_02_1950-0238","type":"ImageService3","width":1662,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"387.9,1886.2 438.0,1930.3 627.0,1936.0 992.0,1930.0 1072.0,1934.0 1074.0,1935.0 1098.0,1935.0 1101.0,1948.0 1142.0,1948.0 1143.0,1936.0 1222.0,1935.0 1223.0,1948.0 1256.0,1948.0 1257.0,1932.0 1544.5,1929.7 1517.2,1535.2 1525.0,1535.0 1525.8,1292.8 1524.6,921.5 1521.6,629.8 1519.5,619.4 1529.5,621.9 1510.9,24.8 1426.8,95.0 816.0,26.9 647.5,104.0 646.7,469.1 431.1,1159.5 360.2,1292.8 356.1,1473.7 258.9,1580.1 313.2,1738.1 257.2,1782.9 325.2,1831.2 387.9,1886.2\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764wm:g03897195002:03897_02_1950-0238__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1525.0,1058.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.8354906,42.2560356]}},{"type":"Feature","properties":{"resourceCoords":[1525.0,1535.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.833678,42.2549633]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764wm:g03897195002:03897_02_1950-0238__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Worcester, Massachusetts | 1950 | sanborn03897_011 p238 [2]","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":"2372.0"},{"label":"split_canvas_h","value":"6262.4"}],"created":"2026-10-17T03:27:35Z","modified":"2026-10-17T03:27:35Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764wm:g03897195002:03897_02_1950-0238__2/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764wm:g03897195002:03897_02_1950-0238","type":"ImageService3","width":1662,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"351.8,13.8 350.1,17.9 311.4,45.5 188.3,35.1 57.8,260.4 28.2,507.6 53.8,878.2 34.2,1137.4 111.7,1462.2 196.9,1537.8 257.9,1530.9 286.5,1491.4 296.3,1303.9 370.3,1169.9 371.1,1167.4 502.2,748.8 559.4,405.6 592.0,360.5 592.0,354.4 383.4,15.5 351.8,13.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764wm:g03897195002:03897_02_1950-0238__2/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.8500156631043,42.25831783892097]}},{"type":"Feature","properties":{"resourceCoords":[593.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.84769961107054,42.25956745890046]}},{"type":"Feature","properties":{"resourceCoords":[593.0,1565.6],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.84327223901539,42.25500861856932]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1565.6],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.84558829104915,42.25375899858983]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764wm:g03897195002:03897_02_1950-0239/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Worcester, Massachusetts | 1950 | sanborn03897_011 p239","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.96"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-17T03:27:35Z","modified":"2026-10-17T03:27:35Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764wm:g03897195002:03897_02_1950-0239/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764wm:g03897195002:03897_02_1950-0239","type":"ImageService3","width":1659,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1443.1,1948.0 1088.0,1948.0 1087.0,1939.0 975.0,1934.0 727.0,1938.0 627.0,1932.0 626.2,1910.2 516.8,1922.0 463.2,1714.8 457.3,1717.0 447.1,1654.8 434.9,1594.2 421.3,1546.0 416.3,1535.3 395.8,1497.5 354.9,1448.0 285.7,1372.8 200.2,992.0 186.3,994.1 173.4,590.0 288.4,502.8 436.1,390.7 485.8,358.8 521.0,343.1 595.9,330.6 747.4,326.9 849.6,327.1 917.0,318.6 985.5,297.4 1075.0,259.2 1251.6,187.0 1487.3,87.7 1490.5,149.2 1490.9,297.5 1494.3,740.4 1496.1,1393.2 1496.3,1623.7 1496.2,1637.8 1496.0,1665.5 1495.4,1738.5 1443.2,1831.8 1451.0,1847.7 1451.5,1894.4 1443.1,1901.1 1443.1,1948.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764wm:g03897195002:03897_02_1950-0239/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1266.0,691.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.82581742085301,42.25590562262817]}},{"type":"Feature","properties":{"resourceCoords":[860.0,1555.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.83005368794147,42.254508494339426]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764wm:g03897195002:03897_02_1950-0241/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Worcester, Massachusetts | 1950 | sanborn03897_011 p241","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.94"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-17T03:27:35Z","modified":"2026-10-17T03:27:35Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764wm:g03897195002:03897_02_1950-0241/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764wm:g03897195002:03897_02_1950-0241","type":"ImageService3","width":1659,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"488.1,62.6 734.0,65.1 1545.5,74.8 1533.2,216.3 1528.3,314.8 1512.0,485.8 1493.8,723.9 1491.5,795.7 1498.7,915.4 1507.8,1012.0 1634.0,1387.4 1658.0,1418.0 1658.0,1495.8 1508.3,1587.2 1509.3,1581.3 1523.3,1499.4 676.8,1586.1 668.1,1629.2 646.3,1736.1 615.1,1889.7 610.5,1886.8 148.3,1859.1 120.4,1931.0 90.9,1930.3 86.5,1930.2 113.2,1767.7 154.2,1513.8 186.8,1324.9 202.1,1228.2 220.4,1158.5 249.1,1096.6 303.7,1009.6 381.4,878.5 410.6,808.0 416.1,769.6 415.3,710.4 398.6,524.7 384.5,368.6 382.1,319.6 393.9,275.5 473.6,62.6 488.1,62.6\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764wm:g03897195002:03897_02_1950-0241/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[784.0,754.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.82743450693849,42.25995268194912]}},{"type":"Feature","properties":{"resourceCoords":[784.0,317.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.82952195129829,42.26019143542034]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764wm:g03897195002:03897_02_1950-0242/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Worcester, Massachusetts | 1950 | sanborn03897_011 p242","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.92"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-17T03:27:35Z","modified":"2026-10-17T03:27:35Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764wm:g03897195002:03897_02_1950-0242/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764wm:g03897195002:03897_02_1950-0242","type":"ImageService3","width":1662,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"163.1,1183.2 186.7,1145.7 215.4,1066.7 254.4,879.8 323.4,578.8 338.3,538.8 243.0,377.9 226.6,362.3 480.8,300.5 593.2,274.8 729.0,237.6 833.1,214.5 992.1,176.3 1008.5,170.4 1252.9,112.5 1470.2,58.7 1553.3,42.2 1600.3,46.0 1605.4,64.6 1629.8,79.4 1589.2,149.2 1535.1,1269.6 1600.5,1633.7 1621.5,1642.8 1646.2,1696.0 1640.0,1714.0 1577.0,1718.0 1579.0,1761.0 1617.6,1760.3 1090.4,1936.0 1083.0,1936.0 1082.8,1938.5 1069.0,1943.1 1069.0,1936.0 875.0,1930.4 552.6,1816.2 470.5,1763.8 371.3,1695.5 315.9,1649.2 138.6,1488.0 13.2,1369.6 163.1,1183.2\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764wm:g03897195002:03897_02_1950-0242/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.8322570108039,42.26708797598817]}},{"type":"Feature","properties":{"resourceCoords":[1662.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.82527631060515,42.26999870390125]}},{"type":"Feature","properties":{"resourceCoords":[1662.0,1949.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.8206962047423,42.26389790484901]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1949.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.82767690494106,42.26098717693593]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764wm:g03897195002:03897_02_1950-0243/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Worcester, Massachusetts | 1950 | sanborn03897_011 p243","metadata":[{"label":"streets","value":"7"},{"label":"intersections","value":"8"},{"label":"confidence","value":"0.97"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-17T03:27:35Z","modified":"2026-10-17T03:27:35Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764wm:g03897195002:03897_02_1950-0243/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764wm:g03897195002:03897_02_1950-0243","type":"ImageService3","width":1660,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"303.5,1740.0 69.6,1479.5 29.0,1487.1 29.0,1477.0 9.0,1475.0 9.0,1454.0 29.0,1453.0 29.0,1424.0 13.4,1423.5 22.7,1401.4 28.0,1401.0 28.6,1387.5 530.8,194.7 634.8,224.7 1267.2,407.5 1302.5,422.3 1393.0,799.1 1349.0,1622.6 1387.3,1732.0 1034.0,1734.8 785.6,1734.3 411.9,1739.5 303.5,1740.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764wm:g03897195002:03897_02_1950-0243/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[881.0,295.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.820426,42.264174]}},{"type":"Feature","properties":{"resourceCoords":[1276.0,1731.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.820675,42.261493]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764wm:g03897195002:03897_02_1950-0244/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Worcester, Massachusetts | 1950 | sanborn03897_011 p244","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.80"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-17T03:27:35Z","modified":"2026-10-17T03:27:35Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764wm:g03897195002:03897_02_1950-0244/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764wm:g03897195002:03897_02_1950-0244","type":"ImageService3","width":1662,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"999.1,1784.8 812.9,1784.8 783.2,1784.8 696.0,1784.9 192.8,176.8 193.6,176.8 357.3,171.4 477.4,168.8 850.5,157.1 1098.5,153.2 1451.3,144.2 1463.0,175.7 1564.1,233.8 1319.8,778.2 1418.2,1474.3 1309.5,1784.4 999.1,1784.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764wm:g03897195002:03897_02_1950-0244/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[951.0,158.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.82157668609824,42.26171537472382]}},{"type":"Feature","properties":{"resourceCoords":[398.0,1783.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.82421954561748,42.25930933259374]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764wm:g03897195002:03897_02_1950-0245/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Worcester, Massachusetts | 1950 | sanborn03897_011 p245","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.66"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-17T03:27:35Z","modified":"2026-10-17T03:27:35Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764wm:g03897195002:03897_02_1950-0245/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764wm:g03897195002:03897_02_1950-0245","type":"ImageService3","width":1660,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"108.2,728.5 87.0,149.4 133.6,110.0 248.1,78.2 544.5,109.7 568.1,91.7 1433.9,126.5 1427.0,177.0 1416.5,251.4 1403.8,318.1 1389.7,383.6 1334.0,1256.3 1343.1,1311.9 1379.7,1527.9 1391.3,1570.3 1417.0,1610.1 1423.6,1619.3 1031.8,1619.0 1033.4,1632.4 662.0,1703.1 587.0,1767.8 537.8,1805.8 500.5,1824.5 497.9,1825.6 490.0,1829.0 442.9,1840.6 394.9,1848.7 383.9,1850.5 323.2,1858.4 325.2,1864.2 122.9,1909.5 100.9,1614.5 108.5,1614.3 108.0,1379.3 104.9,1019.2 100.5,736.2 98.4,726.1 108.2,728.5\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764wm:g03897195002:03897_02_1950-0245/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[111.0,982.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.83613631545619,42.25644560476553]}},{"type":"Feature","properties":{"resourceCoords":[111.0,677.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.83732598986461,42.25715708694186]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764wm:g03897195002:03897_02_1950-0246/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Worcester, Massachusetts | 1950 | sanborn03897_011 p246","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.98"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-17T03:27:35Z","modified":"2026-10-17T03:27:35Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764wm:g03897195002:03897_02_1950-0246/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764wm:g03897195002:03897_02_1950-0246","type":"ImageService3","width":1662,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"539.8,1586.9 467.0,1559.3 400.6,1534.5 228.6,1235.6 335.9,1112.1 327.4,915.1 228.4,895.0 254.6,813.7 293.1,711.0 318.5,644.6 334.6,602.4 365.9,519.6 567.2,101.9 617.0,97.3 644.4,94.8 812.5,74.7 834.5,70.1 1020.2,83.5 1044.7,118.5 1253.0,346.6 1384.4,485.1 1433.2,553.7 1450.7,594.4 1519.3,823.6 1424.1,848.5 1285.6,878.9 1518.7,1654.7 1576.7,1846.5 1577.0,1860.0 1580.8,1860.0 1589.8,1889.7 1594.1,1903.5 1535.9,1900.0 667.2,1644.2 659.4,1640.6 604.2,1615.0 539.8,1586.9\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764wm:g03897195002:03897_02_1950-0246/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[657.0,96.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.83117510888566,42.26652815807273]}},{"type":"Feature","properties":{"resourceCoords":[1015.0,1585.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.83280191556247,42.26117329890525]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764wm:g03897195002:03897_02_1950-0247/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Worcester, Massachusetts | 1950 | sanborn03897_011 p247","metadata":[{"label":"streets","value":"13"},{"label":"intersections","value":"10"},{"label":"confidence","value":"0.85"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-17T03:27:35Z","modified":"2026-10-17T03:27:35Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764wm:g03897195002:03897_02_1950-0247/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764wm:g03897195002:03897_02_1950-0247","type":"ImageService3","width":1660,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"145.8,95.7 154.9,70.5 420.9,31.1 981.8,128.9 1068.9,97.0 1445.2,82.1 1511.1,102.7 1555.8,175.7 1532.5,206.7 1551.3,232.2 1515.6,231.8 1522.0,508.9 1522.8,633.5 1529.5,869.4 1531.2,970.8 1523.0,1332.9 1519.9,1548.4 1517.8,1647.9 1328.2,1690.7 1189.6,1608.2 929.8,1827.4 926.6,1845.0 45.2,1770.6 136.0,1707.2 135.3,1606.3 54.5,1421.7 51.1,1092.2 26.0,1058.2 26.0,1049.0 22.9,1048.9 17.4,1032.0 20.8,1026.0 26.0,1026.0 26.4,1016.0 337.2,464.2 314.4,442.6 102.8,89.2 145.8,95.7\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764wm:g03897195002:03897_02_1950-0247/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1335.0,1233.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.8365318,42.2647762]}},{"type":"Feature","properties":{"resourceCoords":[1530.0,899.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.8372835,42.2660677]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764wm:g03897195002:03897_02_1950-0248/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Worcester, Massachusetts | 1950 | sanborn03897_011 p248","metadata":[{"label":"streets","value":"14"},{"label":"intersections","value":"9"},{"label":"confidence","value":"0.96"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-17T03:27:35Z","modified":"2026-10-17T03:27:35Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764wm:g03897195002:03897_02_1950-0248/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764wm:g03897195002:03897_02_1950-0248","type":"ImageService3","width":1662,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"100.5,1124.7 105.7,757.7 103.0,655.0 94.2,416.0 92.3,289.6 83.5,9.0 110.5,9.0 119.7,9.0 181.7,91.6 596.8,99.5 641.9,140.8 763.8,134.0 957.0,59.4 1122.4,48.0 1138.5,35.9 1594.7,421.1 1612.9,435.9 1532.7,758.1 1531.9,758.9 1502.8,786.5 1450.9,1056.5 1469.8,1090.2 1505.5,1071.4 1592.1,1328.3 1601.5,1325.2 1609.5,1367.4 1595.8,1436.3 1564.7,1607.1 1546.1,1721.8 1521.2,1851.0 1382.5,1830.8 1269.6,1809.2 1013.0,1764.0 962.1,1602.8 940.7,1528.3 493.3,1408.4 406.3,1393.0 291.9,1372.5 183.9,1353.8 99.2,1343.2 100.5,1124.7\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764wm:g03897195002:03897_02_1950-0248/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[103.0,655.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.8374021,42.2661299]}},{"type":"Feature","properties":{"resourceCoords":[1013.0,1764.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.8304539,42.2663508]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764wm:g03897195002:03897_02_1950-0249__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Worcester, Massachusetts | 1950 | sanborn03897_011 p249 [1]","metadata":[{"label":"streets","value":"10"},{"label":"intersections","value":"8"},{"label":"confidence","value":"0.85"},{"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":"6640.0"},{"label":"split_canvas_h","value":"7796.0"}],"created":"2026-10-17T03:27:35Z","modified":"2026-10-17T03:27:35Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764wm:g03897195002:03897_02_1950-0249__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764wm:g03897195002:03897_02_1950-0249","type":"ImageService3","width":1660,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"941.2,1802.5 955.7,1802.4 1028.0,1175.0 1062.5,1156.8 1091.1,1148.6 1151.0,1121.0 1290.7,1043.3 1311.8,1015.9 1198.1,865.6 1061.0,661.5 942.1,486.7 927.7,467.4 794.6,271.1 770.8,308.7 590.5,98.3 599.5,70.7 589.5,61.0 328.1,885.3 288.2,867.7 264.0,871.5 252.7,900.9 244.5,922.4 113.4,1618.1 125.6,1621.8 189.6,1749.5 177.3,1801.6 758.1,1804.7 941.2,1802.5\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764wm:g03897195002:03897_02_1950-0249__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[436.0,1803.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.8355304,42.2706475]}},{"type":"Feature","properties":{"resourceCoords":[610.0,764.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.8358694,42.2745246]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764wm:g03897195002:03897_02_1950-0250/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Worcester, Massachusetts | 1950 | sanborn03897_011 p250","metadata":[{"label":"streets","value":"23"},{"label":"intersections","value":"15"},{"label":"confidence","value":"0.98"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-17T03:27:35Z","modified":"2026-10-17T03:27:35Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764wm:g03897195002:03897_02_1950-0250/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764wm:g03897195002:03897_02_1950-0250","type":"ImageService3","width":1662,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"264.8,446.9 261.9,395.6 253.6,350.4 221.0,262.5 185.1,200.8 122.6,116.3 152.2,116.9 378.6,96.0 775.5,67.6 999.4,52.8 1217.2,40.7 1342.7,30.6 1339.1,332.6 1330.9,384.4 1332.7,438.7 1350.7,522.0 1379.7,595.7 1360.1,637.8 1346.4,684.5 1661.0,743.5 1651.0,752.0 1651.0,768.0 1661.0,769.0 1661.0,793.2 1617.3,830.5 1625.8,1346.3 1565.6,1617.9 1567.8,1855.0 1505.5,1854.2 1388.4,1927.2 1387.8,1927.2 1241.6,1888.2 1216.9,1908.0 1008.3,1717.1 937.2,1597.0 545.8,1710.5 331.6,1837.5 177.1,1930.9 167.0,1931.0 51.9,1937.9 58.5,1922.2 78.6,1864.5 92.5,1797.1 101.4,1732.3 127.3,1541.0 175.1,1293.7 215.0,1080.9 218.3,1056.5 263.4,817.7 219.0,827.9 239.8,544.7 266.3,531.2 264.8,446.9\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764wm:g03897195002:03897_02_1950-0250/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[574.0,82.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.8377713,42.278801]}},{"type":"Feature","properties":{"resourceCoords":[1122.0,1239.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.8315838,42.2782687]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764wm:g03897195002:03897_02_1950-0251/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Worcester, Massachusetts | 1950 | sanborn03897_011 p251","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.98"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-17T03:27:35Z","modified":"2026-10-17T03:27:35Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764wm:g03897195002:03897_02_1950-0251/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764wm:g03897195002:03897_02_1950-0251","type":"ImageService3","width":1660,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"213.6,786.9 233.1,453.3 378.8,532.6 392.0,539.9 774.6,9.9 815.0,10.9 844.9,18.0 913.0,23.4 1078.4,23.9 1111.3,9.8 1120.2,75.2 1124.8,144.6 1121.0,206.2 1116.7,239.2 1110.8,291.6 1156.6,530.7 1207.6,527.6 1238.2,1005.2 1256.4,1001.9 1257.8,1001.6 1276.3,998.2 1278.0,1015.5 1286.4,1102.5 1290.7,1146.9 1313.4,1193.3 1405.6,1503.2 1454.1,1479.5 1530.4,1635.7 1565.5,1713.8 1575.8,1733.5 1442.7,1798.0 1363.8,1842.2 1350.3,1863.6 1318.5,1859.1 1299.5,1880.3 1254.4,1866.0 1169.5,1863.3 945.1,1866.8 693.3,1868.1 676.0,1870.2 511.9,1871.5 405.0,1870.5 405.7,1737.9 402.8,1621.0 401.9,1446.2 402.6,1375.5 386.9,1335.2 378.2,1340.1 244.8,1101.9 213.0,1127.2 188.0,1097.4 189.3,820.5 212.9,787.8 213.6,786.9\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764wm:g03897195002:03897_02_1950-0251/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[215.0,447.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.83394000235612,42.27090585625054]}},{"type":"Feature","properties":{"resourceCoords":[900.0,1615.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.82770902376295,42.26948336414841]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764wm:g03897195002:03897_02_1950-0252/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Worcester, Massachusetts | 1950 | sanborn03897_011 p252","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.94"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-17T03:27:35Z","modified":"2026-10-17T03:27:35Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764wm:g03897195002:03897_02_1950-0252/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764wm:g03897195002:03897_02_1950-0252","type":"ImageService3","width":1662,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"374.2,227.3 643.9,147.9 639.6,116.7 743.0,17.1 748.4,17.1 748.9,49.6 804.4,26.5 1042.9,34.1 1286.5,138.5 1457.5,117.3 1472.8,35.5 1583.7,376.9 1505.6,386.8 1385.4,403.6 1381.8,645.1 1474.8,892.5 1382.2,936.5 1383.5,962.9 1484.1,1746.5 1468.1,1781.7 1457.7,1811.4 1417.3,1927.2 1414.8,1926.3 1396.5,1920.1 1318.7,1887.8 1158.7,1827.6 1139.9,1877.2 864.8,1717.7 817.1,1699.8 719.4,1614.3 706.5,1603.0 695.6,1617.9 683.9,1633.8 339.7,1312.5 305.3,1349.2 111.0,1208.9 80.0,1167.4 77.7,1164.3 70.7,1154.6 129.1,1044.4 129.0,865.0 130.9,617.5 235.5,226.1 374.2,227.3\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764wm:g03897195002:03897_02_1950-0252/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1485.0,1725.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.82457652312522,42.271526293747606]}},{"type":"Feature","properties":{"resourceCoords":[747.0,558.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.82810303453441,42.27579218254233]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764wm:g03897195002:03897_02_1950-0253/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Worcester, Massachusetts | 1950 | sanborn03897_011 p253","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.94"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-17T03:27:35Z","modified":"2026-10-17T03:27:35Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764wm:g03897195002:03897_02_1950-0253/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764wm:g03897195002:03897_02_1950-0253","type":"ImageService3","width":1660,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"799.9,1776.3 519.3,1802.7 518.0,1796.2 342.7,1843.8 258.4,1867.0 98.7,1541.9 134.5,675.5 100.9,463.9 99.4,94.8 239.4,42.2 356.9,38.8 694.8,129.7 950.0,131.1 1007.5,278.0 1062.3,311.2 1362.5,236.8 1344.4,98.9 1551.2,130.8 1576.5,457.9 1538.7,555.3 1531.5,845.7 1584.3,1465.5 1574.7,1836.2 1547.8,1882.4 1550.5,1903.0 1500.6,1903.6 1500.7,1762.7 1501.7,1724.2 1501.7,1703.3 800.9,1756.7 800.5,1761.5 799.9,1776.3\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764wm:g03897195002:03897_02_1950-0253/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[561.0,439.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.82145982875002,42.28129322786538]}},{"type":"Feature","properties":{"resourceCoords":[1497.0,1908.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.81809421606782,42.27556075801765]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764wm:g03897195002:03897_02_1950-0254/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Worcester, Massachusetts | 1950 | sanborn03897_011 p254","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.89"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-17T03:27:35Z","modified":"2026-10-17T03:27:35Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764wm:g03897195002:03897_02_1950-0254/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764wm:g03897195002:03897_02_1950-0254","type":"ImageService3","width":1662,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"89.0,1925.7 75.8,1912.0 75.5,1884.0 101.5,1866.2 97.2,1841.8 125.1,1757.6 178.9,1622.9 231.9,1478.7 248.4,1443.8 160.8,661.0 159.9,634.7 178.2,626.4 252.9,592.2 164.2,344.2 171.8,103.5 291.8,88.7 455.6,70.5 634.1,51.5 634.3,58.0 912.1,76.1 915.0,61.7 916.1,57.1 1608.1,114.5 1604.8,134.8 1601.8,150.9 1597.8,172.2 1575.7,309.7 1624.5,316.9 1582.2,1841.2 806.2,1910.8 119.3,1906.2 117.0,1926.7 89.0,1925.7\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764wm:g03897195002:03897_02_1950-0254/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1548.0,513.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.81820834767959,42.27483557645462]}},{"type":"Feature","properties":{"resourceCoords":[81.0,120.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.82541267888185,42.27625635758187]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764wm:g03897195002:03897_02_1950-0255/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Worcester, Massachusetts | 1950 | sanborn03897_011 p255","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.81"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-17T03:27:35Z","modified":"2026-10-17T03:27:35Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764wm:g03897195002:03897_02_1950-0255/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764wm:g03897195002:03897_02_1950-0255","type":"ImageService3","width":1660,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"102.3,677.1 155.0,237.8 160.8,161.8 156.5,141.9 157.5,141.9 165.6,142.3 224.7,145.1 284.7,147.8 519.0,160.6 685.3,167.8 1081.5,197.1 1142.5,202.2 1207.4,197.8 1354.2,169.4 1404.6,149.3 1540.7,99.8 1547.5,120.8 1549.0,214.4 1554.6,349.5 1559.5,521.4 1552.4,628.4 1524.2,882.9 1551.3,885.7 1597.8,1338.8 1659.0,1403.0 1659.0,1403.2 1580.8,1467.7 1561.9,1479.6 1618.5,1710.5 1581.9,1885.7 1355.7,1885.1 1163.3,1846.1 635.6,1922.7 468.0,1865.4 334.3,1869.4 288.4,1836.4 101.0,1873.5 42.5,1006.1 93.5,751.0 85.3,680.9 102.3,677.1\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764wm:g03897195002:03897_02_1950-0255/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[457.0,178.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.85466360068871,42.27838096582379]}},{"type":"Feature","properties":{"resourceCoords":[1392.0,178.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.85021726972519,42.27799934585781]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764wm:g03897195002:03897_02_1950-0256/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Worcester, Massachusetts | 1950 | sanborn03897_011 p256","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.95"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-17T03:27:35Z","modified":"2026-10-17T03:27:35Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764wm:g03897195002:03897_02_1950-0256/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764wm:g03897195002:03897_02_1950-0256","type":"ImageService3","width":1662,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"138.5,1078.1 182.1,829.7 195.8,725.1 201.6,555.9 204.5,422.8 208.9,330.8 203.5,309.6 309.4,282.5 772.1,142.3 1106.0,149.4 1115.3,129.8 1174.2,161.5 1398.5,289.2 1507.0,351.1 1528.5,361.4 1547.5,370.2 1366.7,1928.3 1357.4,1928.2 1341.7,1928.2 1318.5,1843.6 938.6,1829.7 865.5,1795.9 595.8,1806.3 468.1,1876.8 183.2,1884.2 179.7,1897.2 138.4,1666.7 157.8,1656.2 238.6,1597.8 182.5,1530.7 165.0,1082.5 138.5,1078.1\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764wm:g03897195002:03897_02_1950-0256/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[747.0,594.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.84690002906015,42.277090184103876]}},{"type":"Feature","properties":{"resourceCoords":[1239.0,841.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.84457366759426,42.27611039701664]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764wm:g03897195002:03897_02_1950-0257/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Worcester, Massachusetts | 1950 | sanborn03897_011 p257","metadata":[{"label":"streets","value":"10"},{"label":"intersections","value":"12"},{"label":"confidence","value":"0.95"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-17T03:27:35Z","modified":"2026-10-17T03:27:35Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764wm:g03897195002:03897_02_1950-0257/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764wm:g03897195002:03897_02_1950-0257","type":"ImageService3","width":1660,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"201.4,175.7 294.0,202.5 387.6,214.6 797.4,217.2 847.5,214.6 915.0,205.2 1064.3,174.3 1167.7,152.9 1239.0,146.2 1332.8,153.4 1377.5,164.9 1425.5,183.9 1489.9,212.2 1533.2,1100.3 1488.4,1097.7 1466.5,1110.0 1466.1,1142.4 1465.9,1166.0 1588.8,1883.4 1214.4,1905.0 965.2,1822.7 685.9,1831.3 505.4,1782.0 374.8,1798.5 300.1,1747.2 130.7,1779.2 114.2,1768.7 107.0,1748.2 132.1,1746.5 198.8,174.7 201.4,175.7\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764wm:g03897195002:03897_02_1950-0257/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1148.0,1335.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.8390939,42.273189]}},{"type":"Feature","properties":{"resourceCoords":[427.0,215.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.841883,42.277498]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764wm:g03897195002:03897_02_1950-0259/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Worcester, Massachusetts | 1950 | sanborn03897_011 p259","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.81"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-17T03:27:35Z","modified":"2026-10-17T03:27:35Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764wm:g03897195002:03897_02_1950-0259/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764wm:g03897195002:03897_02_1950-0259","type":"ImageService3","width":1650,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1568.8,1685.5 1539.3,1808.3 998.6,1829.7 995.4,1826.9 992.6,1835.0 77.2,1753.3 85.8,1740.9 53.9,1632.0 83.7,1349.1 59.5,765.7 98.6,598.1 125.4,86.5 1088.9,22.8 1250.0,39.2 1265.9,76.2 1547.4,160.4 1575.5,541.5 1554.9,734.1 1433.5,759.7 1448.0,886.1 1502.0,984.8 1548.5,983.3 1591.0,1083.2 1614.2,1286.3 1593.8,1686.2 1568.8,1685.5\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764wm:g03897195002:03897_02_1950-0259/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1012.0,959.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.87284058044558,42.28048695627583]}},{"type":"Feature","properties":{"resourceCoords":[716.0,219.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.87647420906208,42.279753196465464]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764wm:g03897195002:03897_02_1950-0260/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Worcester, Massachusetts | 1950 | sanborn03897_011 p260","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.87"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-17T03:27:35Z","modified":"2026-10-17T03:27:35Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764wm:g03897195002:03897_02_1950-0260/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764wm:g03897195002:03897_02_1950-0260","type":"ImageService3","width":1651,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"101.8,1867.7 126.7,1884.3 391.4,1865.5 959.3,1915.4 1396.7,1909.4 1592.8,1852.0 1599.0,1290.1 1608.0,1288.2 1492.4,1073.0 1488.2,1073.8 1478.0,799.5 1505.7,792.7 1440.0,628.4 1341.5,496.8 1386.8,456.3 1334.2,245.6 1354.3,228.6 1272.2,63.8 1210.8,122.2 1200.3,28.1 1189.5,17.5 1194.3,54.3 894.1,111.5 791.2,92.6 620.0,116.7 362.7,56.4 85.5,65.8 46.8,160.4 43.3,424.8 1.0,423.7 1.0,447.7 117.8,472.6 151.7,987.5 149.1,990.6 156.9,993.0 101.8,1867.7\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764wm:g03897195002:03897_02_1950-0260/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1268.0,310.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.86281228692847,42.281981674273815]}},{"type":"Feature","properties":{"resourceCoords":[1005.0,1161.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.86469219764044,42.27902659628709]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764wm:g03897195002:03897_02_1950-0261__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Worcester, Massachusetts | 1950 | sanborn03897_011 p261 [1]","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":"6600.0"},{"label":"split_canvas_h","value":"7796.0"}],"created":"2026-10-17T03:27:35Z","modified":"2026-10-17T03:27:35Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764wm:g03897195002:03897_02_1950-0261__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764wm:g03897195002:03897_02_1950-0261","type":"ImageService3","width":1650,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"851.9,1903.2 851.2,1864.4 1327.3,1844.0 1388.1,1859.2 1444.5,1873.3 1470.7,1879.8 1491.2,1605.8 1492.2,1606.6 1589.8,686.8 1579.9,708.2 1505.0,705.8 1496.8,667.5 1361.6,667.6 1308.7,625.6 1068.3,259.9 1071.0,136.1 647.1,37.2 296.9,45.9 100.7,101.1 66.0,482.4 72.0,520.5 61.4,616.2 135.5,572.0 180.0,754.2 156.2,766.5 161.1,987.6 107.0,1017.6 175.2,1170.5 203.5,1348.4 174.4,1349.0 123.0,1623.6 127.3,1623.8 193.7,1863.5 638.7,1867.1 851.9,1903.2\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764wm:g03897195002:03897_02_1950-0261__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[67.0,830.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.86284995764959,42.28192733533156]}},{"type":"Feature","properties":{"resourceCoords":[738.0,1026.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.85951667384754,42.281422864992216]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764wm:g03897195002:03897_02_1950-0261__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Worcester, Massachusetts | 1950 | sanborn03897_011 p261 [2]","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.23"},{"label":"confidence_provisional","value":"true"},{"label":"confidence_model","value":"corpus-v2"},{"label":"split_canvas_x","value":"4444.0"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"2156.0"},{"label":"split_canvas_h","value":"2662.4"}],"created":"2026-10-17T03:27:35Z","modified":"2026-10-17T03:27:35Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764wm:g03897195002:03897_02_1950-0261__2/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764wm:g03897195002:03897_02_1950-0261","type":"ImageService3","width":1650,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1111.0,193.0 1157.9,201.8 1262.6,456.0 1340.0,524.7 1382.5,635.6 1466.0,644.0 1463.9,664.6 1481.4,664.6 1627.0,249.2 1649.0,176.8 1649.0,156.4 1596.2,142.2 1111.0,153.7 1111.0,193.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764wm:g03897195002:03897_02_1950-0261__2/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[1111.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.85870541062849,42.27899254512964]}},{"type":"Feature","properties":{"resourceCoords":[1650.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.85614310878208,42.27918526033711]}},{"type":"Feature","properties":{"resourceCoords":[1650.0,665.6],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.85582351767778,42.2768262897712]}},{"type":"Feature","properties":{"resourceCoords":[1111.0,665.6],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.85838581952419,42.27663357456373]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764wm:g03897195002:03897_02_1950-0262/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Worcester, Massachusetts | 1950 | sanborn03897_011 p262","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.95"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-17T03:27:35Z","modified":"2026-10-17T03:27:35Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764wm:g03897195002:03897_02_1950-0262/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764wm:g03897195002:03897_02_1950-0262","type":"ImageService3","width":1651,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"154.2,1823.5 124.8,1549.7 125.9,1550.3 55.4,626.0 71.2,563.7 52.3,297.7 27.9,265.8 26.3,244.9 259.2,200.5 240.5,143.6 853.0,93.2 867.9,158.4 1244.8,103.2 1245.2,91.1 1369.8,72.3 1404.0,62.7 1387.5,49.1 1497.3,40.0 1495.1,43.9 1453.1,99.9 1475.8,214.2 1503.6,372.2 1533.0,521.5 1541.0,583.9 1548.6,858.9 1562.1,882.3 1499.1,1677.3 1507.8,1709.4 1529.7,1766.0 1425.2,1798.2 1290.2,1844.9 1240.2,1863.8 1095.0,1889.5 1031.0,1892.8 971.0,1886.8 580.9,1851.6 417.1,1841.9 186.2,1825.5 154.2,1823.5\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764wm:g03897195002:03897_02_1950-0262/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1139.0,1345.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.8506312330809,42.27993603578403]}},{"type":"Feature","properties":{"resourceCoords":[718.0,1871.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.85291889495099,42.27820548482115]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764wm:g03897195002:03897_02_1950-0263/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Worcester, Massachusetts | 1950 | sanborn03897_011 p263","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.80"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-17T03:27:35Z","modified":"2026-10-17T03:27:35Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764wm:g03897195002:03897_02_1950-0263/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764wm:g03897195002:03897_02_1950-0263","type":"ImageService3","width":1649,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"243.6,1863.3 688.5,1679.3 1020.1,1653.0 1027.4,1632.8 1088.9,1658.1 1323.8,1761.5 1399.2,1565.0 1451.2,1451.8 1461.8,1422.2 1468.5,1402.1 1474.8,1383.2 1497.4,1298.5 1510.3,247.3 1512.1,197.6 1504.8,169.9 1461.1,76.5 1424.2,72.1 787.5,83.2 622.9,44.6 212.5,28.6 161.5,42.9 153.5,100.8 129.5,149.6 1.0,164.3 1.0,165.0 5.6,170.2 14.4,176.7 123.0,162.0 121.0,165.8 82.2,223.3 110.6,334.9 146.3,489.4 183.1,635.1 194.3,696.2 215.9,967.2 230.5,989.5 208.6,1777.3 218.9,1808.6 243.6,1863.3\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764wm:g03897195002:03897_02_1950-0263/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.84874524087704,42.285123763388384]}},{"type":"Feature","properties":{"resourceCoords":[1649.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.84078907162144,42.284216475810034]}},{"type":"Feature","properties":{"resourceCoords":[1649.0,1949.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.84222832919495,42.27721010978272]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1949.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.85018449845055,42.27811739736107]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764wm:g03897195002:03897_02_1950-0264/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Worcester, Massachusetts | 1950 | sanborn03897_011 p264","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.96"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-17T03:27:35Z","modified":"2026-10-17T03:27:35Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764wm:g03897195002:03897_02_1950-0264/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764wm:g03897195002:03897_02_1950-0264","type":"ImageService3","width":1664,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"953.7,1812.0 886.5,1824.2 836.6,1829.0 426.8,1843.8 332.6,1835.7 238.9,1812.8 216.2,1805.3 193.6,1797.5 78.2,1748.3 150.8,1547.8 201.3,1432.1 211.4,1401.9 223.8,1362.2 245.3,1276.0 240.2,209.2 241.1,158.8 233.3,130.8 187.6,36.6 247.5,43.0 282.3,90.5 466.7,97.5 912.7,94.5 1147.1,58.6 1335.9,91.5 1514.7,65.1 1522.6,19.2 1541.8,19.3 1526.3,485.4 1511.9,535.5 1449.9,728.9 1377.9,935.8 1306.0,1149.5 1180.7,1529.0 1113.6,1747.5 1101.7,1774.7 953.7,1812.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764wm:g03897195002:03897_02_1950-0264/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1371.0,946.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.8368368017114,42.28012383249456]}},{"type":"Feature","properties":{"resourceCoords":[787.0,1831.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.84034137482001,42.27734657718755]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764wm:g03897195002:03897_02_1950-0265__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Worcester, Massachusetts | 1950 | sanborn03897_011 p265 [1]","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.89"},{"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":"4217.6"},{"label":"split_canvas_h","value":"7796.0"}],"created":"2026-10-17T03:27:35Z","modified":"2026-10-17T03:27:35Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764wm:g03897195002:03897_02_1950-0265__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764wm:g03897195002:03897_02_1950-0265","type":"ImageService3","width":1649,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"122.4,1204.7 250.3,1645.2 252.1,1696.4 252.5,1771.7 549.9,1797.5 600.3,1809.4 654.0,1811.6 737.5,1800.0 812.2,1776.9 852.2,1799.3 897.4,1816.2 978.6,1510.5 986.3,1521.0 1003.8,1512.4 1026.9,1513.2 1016.9,1499.6 941.3,1477.8 932.5,1463.9 949.7,1451.2 848.6,1449.9 848.5,1449.3 848.3,1449.3 848.0,1449.3 848.0,1445.0 836.8,1355.7 796.5,1326.7 782.0,964.9 776.6,965.0 767.0,965.1 764.8,965.1 764.5,965.1 764.5,528.5 763.3,499.3 712.5,442.3 714.1,111.1 604.0,68.5 391.5,46.2 123.3,53.2 66.3,104.0 80.5,314.0 41.5,518.5 51.4,847.9 104.3,1210.5 122.4,1204.7\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764wm:g03897195002:03897_02_1950-0265__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[960.4,1600.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.8325245675941,42.28060178795446]}},{"type":"Feature","properties":{"resourceCoords":[257.1,1693.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.8358023062855,42.28149249296243]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764wm:g03897195002:03897_02_1950-0266__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Worcester, Massachusetts | 1950 | sanborn03897_011 p266 [1]","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.45"},{"label":"confidence_provisional","value":"true"},{"label":"confidence_model","value":"corpus-v2"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"4048.8"},{"label":"split_canvas_w","value":"6656.0"},{"label":"split_canvas_h","value":"3747.2"}],"created":"2026-10-17T03:27:35Z","modified":"2026-10-17T03:27:35Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764wm:g03897195002:03897_02_1950-0266__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764wm:g03897195002:03897_02_1950-0266","type":"ImageService3","width":1664,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1479.7,1849.8 1476.2,1843.0 1604.4,1859.5 1639.2,1818.0 1660.8,1764.0 1590.0,1766.0 1639.5,1425.8 1580.2,1257.3 1574.7,1112.2 1399.3,1070.3 1360.0,1092.7 1226.7,1080.6 1161.7,1392.2 1161.6,1395.7 1161.0,1395.7 1160.7,1397.1 426.8,1390.6 255.1,1389.4 293.4,1411.1 272.9,1431.5 93.9,1430.0 50.0,1667.0 123.9,1814.2 126.2,1793.8 361.0,1794.2 353.4,1735.8 958.5,1801.2 960.9,1867.0 1337.7,1883.9 1340.3,1872.2 1465.1,1877.3 1500.2,1874.4 1479.7,1849.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764wm:g03897195002:03897_02_1950-0266__1/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,1012.2],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.85644095315958,42.287067889176]}},{"type":"Feature","properties":{"resourceCoords":[1664.0,1012.2],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.84831548847255,42.28761753214155]}},{"type":"Feature","properties":{"resourceCoords":[1664.0,1949.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.84790005704676,42.28420872780981]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1949.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.85602552173377,42.28365908484426]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764wm:g03897195002:03897_02_1950-0266__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Worcester, Massachusetts | 1950 | sanborn03897_011 p266 [2]","metadata":[{"label":"streets","value":"13"},{"label":"intersections","value":"6"},{"label":"confidence","value":"0.42"},{"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":"6656.0"},{"label":"split_canvas_h","value":"5582.8"}],"created":"2026-10-17T03:27:35Z","modified":"2026-10-17T03:27:35Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764wm:g03897195002:03897_02_1950-0266__2/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764wm:g03897195002:03897_02_1950-0266","type":"ImageService3","width":1664,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"52.4,1170.0 80.8,1157.9 407.4,1366.1 409.9,1371.4 413.8,1349.0 518.4,1348.6 539.3,1378.3 637.6,1391.7 1078.1,1390.0 1129.2,1331.8 1167.6,1048.3 1167.7,1041.3 1168.0,1041.2 1289.8,1009.2 1451.5,1044.8 1565.2,1034.7 1622.6,940.3 1634.4,808.1 1661.9,812.9 1637.8,800.0 1478.2,174.8 1447.1,174.8 1053.7,66.7 1033.7,80.8 338.7,23.2 63.1,42.4 43.2,113.6 22.1,620.8 51.6,1155.4 52.4,1170.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764wm:g03897195002:03897_02_1950-0266__2/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1043.0,585.9],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.8442586,42.2617553]}},{"type":"Feature","properties":{"resourceCoords":[1043.0,396.9],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.8444193,42.2624388]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764wm:g03897195002:03897_02_1950-0267__3/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Worcester, Massachusetts | 1950 | sanborn03897_011 p267 [3]","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.37"},{"label":"confidence_provisional","value":"true"},{"label":"confidence_model","value":"corpus-v2"},{"label":"split_canvas_x","value":"3592.0"},{"label":"split_canvas_y","value":"2788.0"},{"label":"split_canvas_w","value":"3004.0"},{"label":"split_canvas_h","value":"5008.0"}],"created":"2026-10-17T03:27:35Z","modified":"2026-10-17T03:27:35Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764wm:g03897195002:03897_02_1950-0267__3/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764wm:g03897195002:03897_02_1950-0267","type":"ImageService3","width":1649,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1457.5,1805.3 1450.4,1778.2 1432.5,799.6 1366.3,784.3 1320.5,845.4 1130.8,888.1 1155.5,1095.1 1035.2,1324.2 1002.9,1648.6 958.7,1670.5 1015.2,1686.2 1118.5,1713.4 1439.5,1798.2 1457.5,1805.3\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764wm:g03897195002:03897_02_1950-0267__3/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[898.0,697.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.82022040343158,42.268141129765574]}},{"type":"Feature","properties":{"resourceCoords":[1649.0,697.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.8168260826082,42.26719843406911]}},{"type":"Feature","properties":{"resourceCoords":[1649.0,1949.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.81893485297407,42.26298123689584]}},{"type":"Feature","properties":{"resourceCoords":[898.0,1949.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.82232917379744,42.263923932592306]}}]}}]}