{"id":"https://data.mapsnap.org/runs/v2.0/iiif/chronoscope/sanborn03856_005.main.iiif.json","type":"AnnotationPage","@context":["http://www.w3.org/ns/anno.jsonld"],"label":"Southbridge, Massachusetts | 1911 | mapsnap generated fit (2026-10-19)","creator":{"type":"Software","name":"mapsnap","homepage":"https://mapsnap.org"},"rights":"https://opendatacommons.org/licenses/odbl/1-0/","metadata":[{"label":"generated","value":"2026-10-19"},{"label":"run","value":"corpus-v2"},{"label":"pages","value":"39"},{"label":"placed","value":"21"},{"label":"unplaced","value":"18"},{"label":"fit sources","value":"georef-snap 14, georef 6, georef-street 1"},{"label":"key map","value":"georeferenced"},{"label":"split sheets","value":"9 sheet(s) cut into 22 panels"},{"label":"unplaced pages","value":"p12__2 (tier 1, 42.07084,-72.03843 +/-100m); p13__1 (tier 1, 42.07219,-72.03764 +/-100m); p19__2 (tier 1, 42.08190,-72.04840 +/-100m); p23__2 (tier 1, 42.08381,-72.04146 +/-136m); p23__3 (tier 1, 42.08396,-72.04561 +/-119m); p24__1 (tier 1, 42.08280,-72.02338 +/-100m); p24__2 (tier 1, 42.08227,-72.02311 +/-100m); p25__1 (tier 4, 42.07710,-72.03595 +/-1148m); p25__2 (tier 4, 42.07710,-72.03595 +/-1148m); p26__1 (tier 4, 42.07710,-72.03595 +/-1148m); p26__2 (tier 1, 42.07499,-72.02742 +/-219m); p26__3 (tier 4, 42.07710,-72.03595 +/-1148m); p27__1 (tier 4, 42.07710,-72.03595 +/-1148m); p27__2 (tier 4, 42.07710,-72.03595 +/-1148m); p27__3 (tier 4, 42.07710,-72.03595 +/-1148m); p2__1 (tier 1, 42.08338,-72.02644 +/-219m); p5 (tier 1, 42.07403,-72.02605 +/-127m); p6 (tier 1, 42.07397,-72.02300 +/-114m)"}],"items":[{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g038561911:03856_1911-0010/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Southbridge, Massachusetts | 1911 | sanborn03856_005 p10","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.94"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-19T12:46:38Z","modified":"2026-10-19T12:46:38Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g038561911:03856_1911-0010/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g038561911:03856_1911-0010","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"228.8,1715.1 206.8,1723.3 258.2,1552.2 355.5,1530.2 292.2,1259.7 244.4,1025.5 188.8,786.2 256.5,767.9 440.2,739.5 269.0,80.0 436.8,40.6 489.6,39.6 856.5,104.3 1039.2,132.7 1121.4,140.0 1340.3,169.6 1298.7,351.6 1288.1,539.8 1303.0,766.3 1327.6,996.1 1354.0,1278.9 1355.2,1295.4 1356.2,1307.8 760.5,1577.5 250.7,1808.3 228.8,1715.1\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g038561911:03856_1911-0010/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[438.0,734.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.03480708067283,42.073573190193564]}},{"type":"Feature","properties":{"resourceCoords":[1306.0,634.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.03368081075145,42.07499898598459]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g038561911:03856_1911-0011/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Southbridge, Massachusetts | 1911 | sanborn03856_005 p11","metadata":[{"label":"streets","value":"9"},{"label":"intersections","value":"12"},{"label":"confidence","value":"0.94"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-19T12:46:38Z","modified":"2026-10-19T12:46:38Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g038561911:03856_1911-0011/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g038561911:03856_1911-0011","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"394.1,1652.8 404.1,1725.2 430.6,1832.0 598.6,1792.5 792.9,1764.8 989.0,1760.0 986.3,1912.0 1142.8,1912.0 1142.8,1900.8 1423.4,1867.5 1486.7,1792.4 1422.6,1533.1 1514.6,1413.7 1477.1,569.1 1550.7,425.7 1462.7,184.7 1303.2,221.6 1242.4,80.5 1230.0,1.0 1193.7,1.0 1243.5,263.9 1145.2,263.1 1148.1,287.1 989.8,194.5 991.4,92.2 706.2,89.9 461.2,81.0 209.0,78.7 239.6,413.8 274.0,717.8 330.9,1195.4 382.3,1568.0 394.1,1652.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g038561911:03856_1911-0011/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[989.0,726.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.033941,42.071472]}},{"type":"Feature","properties":{"resourceCoords":[989.0,1760.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.034958,42.069722]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g038561911:03856_1911-0012__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Southbridge, Massachusetts | 1911 | sanborn03856_005 p12 [1]","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.88"},{"label":"confidence_provisional","value":"true"},{"label":"confidence_model","value":"corpus-v2"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"6452.0"},{"label":"split_canvas_h","value":"7652.0"}],"created":"2026-10-19T12:46:38Z","modified":"2026-10-19T12:46:38Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g038561911:03856_1911-0012__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g038561911:03856_1911-0012","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"134.6,238.5 109.2,550.3 204.3,776.3 469.3,875.4 492.0,875.6 492.0,883.9 529.3,897.8 557.2,1113.0 413.7,1181.2 447.3,1261.0 324.1,1414.5 454.8,1688.2 384.4,1725.5 497.1,1881.6 1016.7,1796.1 1218.9,1867.5 1565.7,1706.0 1461.2,1327.5 1460.2,1194.8 1517.3,1163.0 1526.9,435.4 1372.7,433.0 1376.7,283.2 1183.3,286.2 991.7,311.8 825.8,349.1 800.6,243.7 791.4,172.2 782.3,101.8 139.4,80.9 170.1,237.2 134.6,238.5\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g038561911:03856_1911-0012__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[170.0,354.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.037829691578,42.07047500386391]}},{"type":"Feature","properties":{"resourceCoords":[1368.0,446.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.03513718043368,42.069447676697976]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g038561911:03856_1911-0013__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Southbridge, Massachusetts | 1911 | sanborn03856_005 p13 [2]","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.91"},{"label":"confidence_provisional","value":"true"},{"label":"confidence_model","value":"corpus-v2"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"6452.0"},{"label":"split_canvas_h","value":"7652.0"}],"created":"2026-10-19T12:46:38Z","modified":"2026-10-19T12:46:38Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g038561911:03856_1911-0013__2/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g038561911:03856_1911-0013","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1521.4,1784.2 1486.9,1412.9 1451.5,937.5 1430.7,635.0 1415.2,301.7 1416.4,230.4 1440.7,42.9 747.8,23.4 180.4,3.1 58.2,1.0 2.2,1.0 57.8,26.9 291.4,683.1 238.4,788.7 132.4,836.7 51.0,1255.6 242.2,1351.5 286.6,1351.5 328.5,1351.5 421.7,1441.6 587.9,1525.0 722.5,1838.7 844.9,1854.2 866.8,1912.0 902.5,1912.0 877.2,1753.8 1522.6,1797.5 1521.4,1784.2\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g038561911:03856_1911-0013__2/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1184.0,1522.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.0367092806502,42.07116837424535]}},{"type":"Feature","properties":{"resourceCoords":[764.0,40.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.0363747827858,42.07402195435986]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g038561911:03856_1911-0014/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Southbridge, Massachusetts | 1911 | sanborn03856_005 p14","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.92"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-19T12:46:38Z","modified":"2026-10-19T12:46:38Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g038561911:03856_1911-0014/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g038561911:03856_1911-0014","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"715.2,102.8 715.9,104.8 1473.2,329.3 1493.6,326.8 1561.0,580.5 1568.0,777.3 1460.7,1296.0 1405.6,1529.6 1321.1,1845.8 1102.6,1808.1 1020.4,1797.7 838.1,1762.6 472.2,1684.1 419.2,1683.1 249.3,1716.5 132.7,1168.3 91.5,975.8 22.0,433.9 46.9,93.7 323.5,36.2 604.6,167.8 715.2,102.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g038561911:03856_1911-0014/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[255.0,1697.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.03643027482613,42.07409128930361]}},{"type":"Feature","properties":{"resourceCoords":[10.0,505.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.03926786519045,42.074995908199284]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g038561911:03856_1911-0015/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Southbridge, Massachusetts | 1911 | sanborn03856_005 p15","metadata":[{"label":"streets","value":"5"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.83"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-19T12:46:38Z","modified":"2026-10-19T12:46:38Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g038561911:03856_1911-0015/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g038561911:03856_1911-0015","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1162.0,442.6 1272.3,858.2 1315.9,969.2 1381.5,1092.1 1434.0,1042.1 1586.5,1138.7 1583.0,1139.5 1569.5,1487.2 1612.0,1549.9 1612.0,1637.3 822.8,1699.6 811.6,1676.8 811.7,1595.6 681.9,1665.1 625.4,1677.9 517.8,1669.2 256.1,1610.2 98.6,1579.1 172.7,1350.5 322.2,842.0 331.3,645.2 284.9,386.7 1101.0,195.5 1162.0,442.6\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g038561911:03856_1911-0015/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-72.038698,42.077383]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-72.0366426,42.0800082]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-72.032448,42.078198900000004]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-72.0345034,42.0755737]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g038561911:03856_1911-0016/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Southbridge, Massachusetts | 1911 | sanborn03856_005 p16","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.88"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-19T12:46:38Z","modified":"2026-10-19T12:46:38Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g038561911:03856_1911-0016/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g038561911:03856_1911-0016","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"160.5,882.0 192.4,1137.6 253.6,1568.5 284.2,1685.3 335.4,1816.7 394.2,1772.6 536.0,1888.0 1260.7,1818.2 1339.9,1855.1 1532.1,1787.8 1563.2,1695.2 1512.0,1211.6 1530.2,942.9 1573.7,860.9 1551.5,206.6 1534.6,127.5 1546.8,105.1 1597.8,76.0 1565.3,1.0 1495.8,1.0 1462.3,137.4 1244.0,136.5 1243.2,161.2 680.4,188.9 583.7,203.8 523.0,221.8 79.5,331.5 126.3,632.1 160.5,882.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g038561911:03856_1911-0016/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1017.0,956.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.0358441543204,42.0803972031364]}},{"type":"Feature","properties":{"resourceCoords":[1284.0,189.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.03734241098064,42.08141921922726]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g038561911:03856_1911-0017/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Southbridge, Massachusetts | 1911 | sanborn03856_005 p17","metadata":[{"label":"streets","value":"8"},{"label":"intersections","value":"16"},{"label":"confidence","value":"0.97"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-19T12:46:38Z","modified":"2026-10-19T12:46:38Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g038561911:03856_1911-0017/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g038561911:03856_1911-0017","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1179.7,166.8 994.3,226.6 527.7,119.6 120.8,115.8 48.4,309.4 33.7,651.9 191.8,1177.9 150.1,1242.4 1.0,1272.9 1.0,1276.0 649.6,1736.9 670.0,1741.2 1515.0,1756.0 1513.3,1504.8 1505.7,1201.8 1463.3,1207.2 1310.4,716.7 1175.8,730.2 1173.5,659.7 1222.3,608.9 1277.4,507.4 1246.0,501.1 1179.7,166.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g038561911:03856_1911-0017/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1515.0,1756.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.0368665,42.07899]}},{"type":"Feature","properties":{"resourceCoords":[99.0,218.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.0415655,42.0772387]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g038561911:03856_1911-0018/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Southbridge, Massachusetts | 1911 | sanborn03856_005 p18","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.91"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-19T12:46:38Z","modified":"2026-10-19T12:46:38Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g038561911:03856_1911-0018/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g038561911:03856_1911-0018","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"25.3,968.2 39.4,1520.2 18.4,1534.0 62.3,1546.2 20.8,1756.7 56.5,1863.8 533.2,1868.8 539.2,1889.7 869.4,1835.6 876.7,1805.0 974.4,1862.4 1022.6,1912.0 1091.9,1912.0 1083.2,1779.5 1569.5,1645.5 1565.6,1603.8 1530.1,1158.3 1522.3,1096.8 1523.4,1001.1 1585.9,453.5 1562.2,448.8 1597.8,238.2 1470.5,183.8 1481.4,117.4 1389.6,30.6 1269.1,75.5 393.2,24.1 92.1,106.8 25.1,277.1 1.0,283.2 1.0,420.2 20.3,597.3 12.0,603.0 17.0,644.4 22.8,872.1 1.0,895.0 1.0,943.7 25.3,968.2\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g038561911:03856_1911-0018/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1011.0,1025.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.03923104824288,42.080581480225575]}},{"type":"Feature","properties":{"resourceCoords":[1173.0,77.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.03823880676651,42.08225506818085]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g038561911:03856_1911-0019__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Southbridge, Massachusetts | 1911 | sanborn03856_005 p19 [1]","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.56"},{"label":"confidence_provisional","value":"true"},{"label":"confidence_model","value":"corpus-v2"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"6452.0"},{"label":"split_canvas_h","value":"7652.0"}],"created":"2026-10-19T12:46:38Z","modified":"2026-10-19T12:46:38Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g038561911:03856_1911-0019__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g038561911:03856_1911-0019","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1567.0,1519.0 1612.0,1477.0 1612.0,1317.6 1539.2,1307.1 1452.7,1253.9 1493.9,588.7 1512.8,588.1 1469.5,1.0 1389.8,1.0 1398.2,38.2 1151.4,39.9 934.1,118.4 823.9,413.4 823.8,423.1 820.3,423.1 819.7,424.7 212.1,419.6 92.5,539.6 41.7,1103.5 123.4,1297.8 63.8,1339.0 41.2,1695.2 252.1,1820.2 1103.0,1884.1 1098.5,1900.9 1396.3,1658.2 1567.0,1519.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g038561911:03856_1911-0019__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1213.0,585.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.04562361954903,42.08219562762965]}},{"type":"Feature","properties":{"resourceCoords":[1502.0,585.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.04492230584549,42.082097269892635]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g038561911:03856_1911-0020/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Southbridge, Massachusetts | 1911 | sanborn03856_005 p20","metadata":[{"label":"streets","value":"9"},{"label":"intersections","value":"11"},{"label":"confidence","value":"0.88"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-19T12:46:38Z","modified":"2026-10-19T12:46:38Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g038561911:03856_1911-0020/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g038561911:03856_1911-0020","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"203.1,33.0 105.8,20.1 203.1,33.0 202.7,22.8 539.9,43.0 534.1,53.5 869.7,78.3 861.1,112.0 1017.6,182.0 1447.3,92.8 1480.3,349.6 1612.0,328.9 1612.0,347.6 1606.2,456.8 1609.8,646.5 1600.8,651.5 1583.0,665.6 1602.2,693.7 1587.3,924.0 1562.2,946.0 1557.9,993.2 1581.1,1021.1 1545.2,1579.4 1522.9,1591.3 1566.0,1607.7 1505.0,1816.3 1488.2,1745.2 1257.2,1803.2 1258.0,1824.8 1065.3,1805.4 1066.0,1751.0 585.5,1752.4 583.4,1816.9 91.4,1802.0 86.0,1763.0 256.9,1632.4 302.1,1592.8 306.9,1437.2 236.2,1424.7 153.3,1370.2 213.9,722.1 232.4,722.1 203.1,33.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g038561911:03856_1911-0020/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1066.0,1751.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.0432179,42.0799378]}},{"type":"Feature","properties":{"resourceCoords":[594.0,722.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.043994,42.081983]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g038561911:03856_1911-0021/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Southbridge, Massachusetts | 1911 | sanborn03856_005 p21","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.96"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-19T12:46:38Z","modified":"2026-10-19T12:46:38Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g038561911:03856_1911-0021/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g038561911:03856_1911-0021","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"343.8,1790.5 347.1,1753.1 807.5,1759.2 802.3,1878.5 1290.7,1681.5 1608.2,1543.8 1554.8,1468.6 1526.5,111.7 1335.7,89.5 1337.2,35.6 860.6,29.6 857.5,93.5 369.9,71.2 365.1,32.5 65.9,253.9 21.3,396.0 59.1,1737.0 1.0,1773.3 1.0,1791.2 343.8,1790.5\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g038561911:03856_1911-0021/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[816.0,1863.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.04518400936323,42.076651451345356]}},{"type":"Feature","properties":{"resourceCoords":[1329.0,42.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.04324095632018,42.07992796658471]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g038561911:03856_1911-0022/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Southbridge, Massachusetts | 1911 | sanborn03856_005 p22","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.80"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-19T12:46:38Z","modified":"2026-10-19T12:46:38Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g038561911:03856_1911-0022/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g038561911:03856_1911-0022","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1409.0,1896.5 952.8,1863.5 901.1,1814.0 575.4,1799.8 545.2,1742.6 255.7,1727.5 246.0,1619.2 123.0,1614.8 43.7,1305.7 44.5,1023.8 106.2,877.8 33.0,517.9 39.0,141.8 58.6,54.6 209.8,22.3 688.5,91.0 752.5,46.1 1014.0,98.0 1432.3,52.4 1487.3,169.1 1477.1,168.5 1435.8,525.8 1473.0,533.6 1412.2,996.4 1292.8,977.0 1433.0,1492.2 1534.0,1828.3 1409.0,1896.5\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g038561911:03856_1911-0022/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1188.0,1487.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.04394809473096,42.0764090759215]}},{"type":"Feature","properties":{"resourceCoords":[1131.0,172.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.04725699053128,42.0763583799826]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g038561911:03856_1911-0023__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Southbridge, Massachusetts | 1911 | sanborn03856_005 p23 [1]","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"6"},{"label":"confidence","value":"0.76"},{"label":"confidence_provisional","value":"true"},{"label":"confidence_model","value":"corpus-v2"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"6452.0"},{"label":"split_canvas_h","value":"5063.6"}],"created":"2026-10-19T12:46:38Z","modified":"2026-10-19T12:46:38Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g038561911:03856_1911-0023__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g038561911:03856_1911-0023","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"10.0,647.1 34.2,981.5 23.1,977.2 38.5,1240.5 58.5,1224.7 782.0,1256.1 835.8,992.5 838.5,890.3 857.9,884.1 1580.1,886.1 1557.9,82.0 467.6,17.8 67.6,98.9 27.7,542.1 1.0,551.1 1.0,648.7 10.0,647.1\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g038561911:03856_1911-0023__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1252.0,262.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.044741,42.085852]}},{"type":"Feature","properties":{"resourceCoords":[1252.0,659.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.043771,42.085639]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g038561911:03856_1911-0024__3/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Southbridge, Massachusetts | 1911 | sanborn03856_005 p24 [3]","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"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":"3482.4"},{"label":"split_canvas_w","value":"6452.0"},{"label":"split_canvas_h","value":"4169.6"}],"created":"2026-10-19T12:46:38Z","modified":"2026-10-19T12:46:38Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g038561911:03856_1911-0024__3/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g038561911:03856_1911-0024","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"792.3,1036.7 767.6,1192.4 767.6,1213.5 767.6,1213.7 764.2,1213.7 763.3,1219.7 207.8,1258.7 122.5,1330.7 23.9,1559.8 57.5,1910.9 1055.5,1911.5 1336.3,1829.0 1560.8,1877.3 1574.2,1478.2 1528.7,1393.5 1552.6,1358.8 1561.2,909.4 1407.5,880.6 1280.6,962.6 1101.3,888.7 900.5,907.9 792.3,1036.7\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g038561911:03856_1911-0024__3/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[974.0,1754.1],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.02295350210504,42.08245761816057]}},{"type":"Feature","properties":{"resourceCoords":[1330.0,1754.1],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.0227400963904,42.083112190366265]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g038561911:03856_1911-0002__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Southbridge, Massachusetts | 1911 | sanborn03856_005 p2 [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":"1052.0"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"5400.0"},{"label":"split_canvas_h","value":"7652.0"}],"created":"2026-10-19T12:46:38Z","modified":"2026-10-19T12:46:38Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g038561911:03856_1911-0002__2/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g038561911:03856_1911-0002","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1612.0,1465.5 1566.9,1461.9 1463.2,1266.9 1514.2,776.3 1567.3,756.4 1590.7,567.8 1452.0,60.7 1158.1,27.3 949.1,86.1 928.2,346.4 875.0,360.0 875.0,385.4 872.4,385.8 638.3,420.5 600.4,478.5 472.4,1355.7 299.6,1762.4 379.4,1840.2 457.3,1857.1 489.6,1865.5 597.1,1879.8 715.4,1868.3 1022.9,1822.0 1183.2,1780.9 1298.0,1738.2 1396.9,1685.7 1612.0,1560.8 1612.0,1465.5\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g038561911:03856_1911-0002__2/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1390.0,1740.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.02732157813917,42.07893487185333]}},{"type":"Feature","properties":{"resourceCoords":[1400.0,97.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.0279753448168,42.082047956144436]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g038561911:03856_1911-0003/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Southbridge, Massachusetts | 1911 | sanborn03856_005 p3","metadata":[{"label":"streets","value":"9"},{"label":"intersections","value":"7"},{"label":"confidence","value":"0.98"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-19T12:46:38Z","modified":"2026-10-19T12:46:38Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g038561911:03856_1911-0003/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g038561911:03856_1911-0003","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1366.6,93.2 1365.5,190.3 1145.0,314.8 1043.6,367.1 926.2,409.2 762.5,449.1 448.8,492.6 328.2,502.9 218.9,487.1 192.3,479.8 186.1,478.1 107.0,459.9 47.8,550.8 65.2,1077.3 1.0,1068.0 1.0,1374.3 781.9,1675.1 884.0,1704.8 1066.6,1768.7 1116.5,1795.2 1118.0,1912.0 1134.2,1912.0 1143.2,1817.8 1524.3,1884.1 1588.8,1764.5 1516.3,886.5 1570.4,743.2 1561.6,167.3 1499.7,105.6 1366.6,93.2\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g038561911:03856_1911-0003/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[708.0,1652.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.0278364,42.0764179]}},{"type":"Feature","properties":{"resourceCoords":[901.0,414.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.027893,42.078777]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g038561911:03856_1911-0004/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Southbridge, Massachusetts | 1911 | sanborn03856_005 p4","metadata":[{"label":"streets","value":"9"},{"label":"intersections","value":"11"},{"label":"confidence","value":"0.83"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-19T12:46:38Z","modified":"2026-10-19T12:46:38Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g038561911:03856_1911-0004/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g038561911:03856_1911-0004","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"50.7,710.9 83.8,728.7 630.1,1625.7 527.0,1820.1 555.8,1820.7 655.9,1821.2 666.7,1821.1 690.5,1820.8 725.1,1820.0 747.6,1818.6 809.6,1815.0 828.6,1814.0 898.0,1809.9 922.0,1808.5 1024.2,1800.3 1190.7,1786.9 1300.2,1782.9 1505.7,1840.0 1552.5,1875.8 1539.5,1791.3 1434.1,1743.5 1471.8,1351.5 1541.7,1343.8 1540.1,1196.9 1442.0,1184.0 1453.5,953.1 1324.2,558.3 1307.7,376.5 1292.0,378.4 1269.7,266.6 1217.2,250.0 1030.5,221.2 927.2,210.8 123.2,60.8 112.1,1.0 1.0,1.0 1.0,621.4 50.7,710.9\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g038561911:03856_1911-0004/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[770.0,806.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.028067,42.075254]}},{"type":"Feature","properties":{"resourceCoords":[905.0,479.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.027707,42.075882]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g038561911:03856_1911-0007/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Southbridge, Massachusetts | 1911 | sanborn03856_005 p7","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.78"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-19T12:46:38Z","modified":"2026-10-19T12:46:38Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g038561911:03856_1911-0007/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g038561911:03856_1911-0007","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"569.2,68.3 1334.0,170.1 1362.9,299.2 1371.2,331.6 1398.0,430.2 1407.9,464.3 1418.2,498.1 1446.2,580.0 1475.5,665.7 1483.4,688.9 1578.1,947.8 1612.0,1054.5 1612.0,1272.5 1589.5,1328.5 1577.0,1334.0 1558.2,1860.5 1127.2,1888.4 391.2,1736.7 124.3,1791.5 21.7,1642.6 34.1,939.5 119.0,795.8 126.3,615.1 104.2,487.5 29.4,434.7 29.2,86.5 37.0,47.9 572.2,55.1 569.2,68.3\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g038561911:03856_1911-0007/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1361.0,323.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.02868010897147,42.07328707272649]}},{"type":"Feature","properties":{"resourceCoords":[199.0,1502.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.0266218305436,42.07056234159273]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g038561911:03856_1911-0008/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Southbridge, Massachusetts | 1911 | sanborn03856_005 p8","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.71"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-19T12:46:38Z","modified":"2026-10-19T12:46:38Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g038561911:03856_1911-0008/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g038561911:03856_1911-0008","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"58.9,747.4 31.4,1282.0 89.9,1373.5 46.6,1834.3 1.0,1844.0 1.0,1857.8 776.6,1788.5 833.7,1909.4 835.0,1912.0 1062.9,1912.0 1612.0,978.4 1612.0,284.8 1476.7,35.1 1394.0,53.3 1156.8,88.9 904.1,111.8 703.1,120.7 652.0,116.0 638.0,403.4 636.1,432.7 1.0,617.4 1.0,642.2 58.9,747.4\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g038561911:03856_1911-0008/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1206.0,61.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.03235995413402,42.07557554271215]}},{"type":"Feature","properties":{"resourceCoords":[624.0,381.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.03236021790457,42.074335340736866]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g038561911:03856_1911-0009/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Southbridge, Massachusetts | 1911 | sanborn03856_005 p9","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.92"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-19T12:46:38Z","modified":"2026-10-19T12:46:38Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g038561911:03856_1911-0009/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g038561911:03856_1911-0009","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1167.2,1885.9 936.3,1879.2 746.7,1850.3 566.2,1790.5 251.3,1686.4 279.0,1526.1 332.6,1259.8 338.8,1150.6 324.5,1093.7 251.0,963.9 333.2,962.1 356.1,950.2 274.0,152.6 185.6,154.7 294.9,76.8 442.8,54.3 529.3,112.0 1014.4,69.9 1194.0,113.0 1436.2,49.6 1544.0,128.3 1612.0,83.7 1612.0,906.8 1528.2,910.8 1282.2,1059.5 1304.4,1141.6 1351.3,1377.9 1386.2,1630.4 1404.8,1831.8 1402.5,1883.2 1167.2,1885.9\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g038561911:03856_1911-0009/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[940.0,1835.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.03383439555107,42.075145402372755]}},{"type":"Feature","properties":{"resourceCoords":[1393.0,1835.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.03286742130541,42.07470528385245]}}]}}]}