{"id":"https://data.mapsnap.org/runs/v2.0/iiif/chronoscope/sanborn03780_005.main.iiif.json","type":"AnnotationPage","@context":["http://www.w3.org/ns/anno.jsonld"],"label":"Marshfield, Massachusetts | 1950 | mapsnap generated fit (2026-10-22)","creator":{"type":"Software","name":"mapsnap","homepage":"https://mapsnap.org"},"rights":"https://opendatacommons.org/licenses/odbl/1-0/","metadata":[{"label":"generated","value":"2026-10-22"},{"label":"run","value":"corpus-v2.1"},{"label":"pages","value":"15"},{"label":"placed","value":"6"},{"label":"unplaced","value":"9"},{"label":"fit sources","value":"georef 6"},{"label":"key map","value":"none"},{"label":"split sheets","value":"5 sheet(s) cut into 13 panels"},{"label":"unplaced pages","value":"p1__2 (tier 4, 42.09519,-70.66456 +/-3814m); p2 (tier 4, 42.09519,-70.66456 +/-3814m); p3__2 (tier 2, 42.09614,-70.65113 +/-100m); p4__2 (tier 2, 42.09749,-70.65321 +/-189m); p4__3 (tier 2, 42.09749,-70.65321 +/-189m); p6 (tier 4, 42.09519,-70.66456 +/-3814m); p7__1 (tier 4, 42.09519,-70.66456 +/-3814m); p7__2 (tier 1, 42.07902,-70.64785 +/-250m); p7__3 (tier 4, 42.09519,-70.66456 +/-3814m)"}],"items":[{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764mm:g037801950:03780_1950-0001__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Marshfield, Massachusetts | 1950 | sanborn03780_005 p1 [1]","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"10"},{"label":"confidence","value":"0.05"},{"label":"confidence_provisional","value":"true"},{"label":"confidence_model","value":"corpus-v2"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"3266.8"},{"label":"split_canvas_w","value":"6800.0"},{"label":"split_canvas_h","value":"4529.2"}],"created":"2026-10-22T13:17:21Z","modified":"2026-10-22T13:17:21Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764mm:g037801950:03780_1950-0001__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764mm:g037801950:03780_1950-0001","type":"ImageService3","width":1700,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"89.5,1245.0 151.2,1464.2 42.4,1779.8 49.1,1945.3 251.2,1947.8 883.1,1838.3 1083.2,1900.2 1459.2,1947.8 1643.3,1868.0 1647.7,1120.6 1340.4,1143.2 884.9,1095.9 805.6,861.3 610.1,839.9 294.5,915.5 161.1,878.5 88.8,901.5 89.5,1245.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764mm:g037801950:03780_1950-0001__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[213.0,1945.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-70.65015,42.079225]}},{"type":"Feature","properties":{"resourceCoords":[1464.0,1462.3],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-70.6505112,42.083745]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764mm:g037801950:03780_1950-0003__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Marshfield, Massachusetts | 1950 | sanborn03780_005 p3 [1]","metadata":[{"label":"streets","value":"8"},{"label":"intersections","value":"10"},{"label":"confidence","value":"0.63"},{"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":"3574.8"},{"label":"split_canvas_h","value":"7796.0"}],"created":"2026-10-22T13:17:21Z","modified":"2026-10-22T13:17:21Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764mm:g037801950:03780_1950-0003__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764mm:g037801950:03780_1950-0003","type":"ImageService3","width":1690,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"244.7,252.5 150.3,440.2 170.9,456.0 179.0,574.4 69.6,1178.7 81.2,1421.5 146.9,1691.4 207.5,1746.9 339.0,1776.9 507.2,1764.8 548.7,1796.3 594.3,1761.0 769.0,1795.8 834.2,1728.5 834.6,1574.5 798.4,1542.2 835.4,1364.6 838.4,1053.5 761.8,957.6 831.7,552.5 777.7,310.2 777.5,132.3 700.5,62.5 595.5,111.9 593.5,105.2 232.8,214.5 244.7,252.5\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764mm:g037801950:03780_1950-0003__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[516.8,1259.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-70.6475454,42.0933519]}},{"type":"Feature","properties":{"resourceCoords":[516.8,1449.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-70.646983,42.092804]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764mm:g037801950:03780_1950-0004__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Marshfield, Massachusetts | 1950 | sanborn03780_005 p4 [1]","metadata":[{"label":"streets","value":"14"},{"label":"intersections","value":"23"},{"label":"confidence","value":"0.77"},{"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":"6804.0"},{"label":"split_canvas_h","value":"6162.4"}],"created":"2026-10-22T13:17:21Z","modified":"2026-10-22T13:17:21Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764mm:g037801950:03780_1950-0004__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764mm:g037801950:03780_1950-0004","type":"ImageService3","width":1701,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"397.4,761.9 444.2,829.2 446.8,968.3 642.2,1053.5 717.1,1161.3 708.4,1209.6 857.5,1228.2 915.0,1263.5 990.1,1385.2 1185.8,1484.3 1457.3,1516.7 1591.0,1452.0 1666.1,1174.4 1631.5,874.2 1700.0,824.4 1546.2,672.6 1504.9,672.1 1512.2,281.4 1519.6,281.4 1504.4,162.1 1440.0,199.1 1026.2,63.5 692.8,97.6 472.4,31.2 540.8,183.6 519.8,174.8 361.9,267.2 415.4,268.1 412.2,429.4 414.6,655.8 406.1,655.9 397.4,761.9\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764mm:g037801950:03780_1950-0004__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[413.0,469.9],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-70.655422,42.098497]}},{"type":"Feature","properties":{"resourceCoords":[1230.0,664.8],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-70.652785,42.096309]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764mm:g037801950:03780_1950-0004__4/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Marshfield, Massachusetts | 1950 | sanborn03780_005 p4 [4]","metadata":[{"label":"streets","value":"3"},{"label":"intersections","value":"4"},{"label":"confidence","value":"0.18"},{"label":"confidence_provisional","value":"true"},{"label":"confidence_model","value":"corpus-v2"},{"label":"split_canvas_x","value":"3629.6"},{"label":"split_canvas_y","value":"6135.6"},{"label":"split_canvas_w","value":"3174.4"},{"label":"split_canvas_h","value":"1660.4"}],"created":"2026-10-22T13:17:21Z","modified":"2026-10-22T13:17:21Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764mm:g037801950:03780_1950-0004__4/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764mm:g037801950:03780_1950-0004","type":"ImageService3","width":1701,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1671.9,1615.8 1642.5,1589.4 1354.9,1550.2 1246.2,1611.7 1216.9,1585.3 1110.8,1615.8 1030.1,1557.5 950.2,1605.5 931.6,1752.1 1027.6,1835.1 1046.4,1888.5 1559.6,1885.2 1539.6,1818.9 1636.0,1798.4 1660.3,1763.2 1671.9,1615.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764mm:g037801950:03780_1950-0004__4/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[990.4,1694.5],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-70.71211,42.092389]}},{"type":"Feature","properties":{"resourceCoords":[1315.2,1694.5],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-70.710342,42.091928]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764mm:g037801950:03780_1950-0005__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Marshfield, Massachusetts | 1950 | sanborn03780_005 p5 [1]","metadata":[{"label":"streets","value":"11"},{"label":"intersections","value":"7"},{"label":"confidence","value":"0.13"},{"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":"3742.8"},{"label":"split_canvas_h","value":"7796.0"}],"created":"2026-10-22T13:17:21Z","modified":"2026-10-22T13:17:21Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764mm:g037801950:03780_1950-0005__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764mm:g037801950:03780_1950-0005","type":"ImageService3","width":1685,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"717.2,1869.8 667.3,1818.0 653.8,1611.3 672.4,1429.9 762.1,1167.8 735.3,1050.6 768.5,923.9 767.7,606.6 837.6,478.9 897.5,189.1 897.6,188.6 861.2,98.0 676.3,45.5 532.2,46.8 134.7,175.8 115.4,428.0 177.5,588.8 171.6,756.8 196.8,816.4 171.5,848.5 199.4,910.7 181.7,1220.5 216.7,1253.7 245.4,1439.0 207.6,1683.9 126.9,1801.5 153.7,1862.9 287.4,1916.1 291.4,1861.9 371.2,1864.9 595.8,1866.0 597.3,1828.0 717.2,1869.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764mm:g037801950:03780_1950-0005__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[381.9,343.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-70.666203,42.1072923]}},{"type":"Feature","properties":{"resourceCoords":[595.8,1866.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-70.660305,42.103802]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764mm:g037801950:03780_1950-0005__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Marshfield, Massachusetts | 1950 | sanborn03780_005 p5 [2]","metadata":[{"label":"streets","value":"12"},{"label":"intersections","value":"15"},{"label":"confidence","value":"0.47"},{"label":"confidence_provisional","value":"true"},{"label":"confidence_model","value":"corpus-v2"},{"label":"split_canvas_x","value":"2871.6"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"3868.4"},{"label":"split_canvas_h","value":"7796.0"}],"created":"2026-10-22T13:17:21Z","modified":"2026-10-22T13:17:21Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764mm:g037801950:03780_1950-0005__2/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764mm:g037801950:03780_1950-0005","type":"ImageService3","width":1685,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"974.9,81.2 884.4,521.6 934.5,573.1 941.2,671.7 859.4,760.6 783.6,1461.7 866.0,1584.0 920.1,1865.2 882.4,1906.2 985.4,1892.0 987.4,1900.1 1203.0,1849.6 1357.7,1818.4 1347.2,1767.1 1468.9,1898.2 1465.0,1920.2 1596.0,1822.5 1638.0,1253.1 1626.6,245.4 1614.6,147.0 1549.2,80.9 1426.5,39.8 1425.4,78.5 1196.6,80.4 1115.2,78.4 1111.8,133.7 974.9,81.2\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764mm:g037801950:03780_1950-0005__2/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1137.5,725.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-70.659216,42.101408]}},{"type":"Feature","properties":{"resourceCoords":[1164.5,1859.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-70.655422,42.098497]}}]}}]}