{"id":"https://data.mapsnap.org/runs/v2.0/iiif/chronoscope/sanborn03715_001.main.iiif.json","type":"AnnotationPage","@context":["http://www.w3.org/ns/anno.jsonld"],"label":"Dartmouth, Massachusetts | 1924 | 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":"20"},{"label":"placed","value":"7"},{"label":"unplaced","value":"13"},{"label":"fit sources","value":"georef-snap 3, georef 3, snap:0 1"},{"label":"key map","value":"georeferenced"},{"label":"split sheets","value":"7 sheet(s) cut into 18 panels"},{"label":"unplaced pages","value":"p10__1 (tier 1, 41.63018,-70.93038 +/-306m); p10__2 (tier 1, 41.63151,-70.92876 +/-195m); p10__3 (tier 1, 41.63116,-70.93636 +/-193m); p3__2 (tier 1, 41.61619,-70.94207 +/-170m); p4__1 (tier 1, 41.61263,-70.94100 +/-100m); p4__3 (tier 1, 41.60828,-70.93865 +/-178m); p5__2 (tier 1, 41.60476,-70.94846 +/-158m); p6__1 (tier 1, 41.63741,-70.96498 +/-263m); p6__2 (tier 1, 41.63771,-70.96198 +/-302m); p7__1 (tier 1, 41.63755,-70.96947 +/-106m); p7__3 (tier 1, 41.63872,-70.98133 +/-259m); p8__1 (tier 1, 41.63835,-70.98435 +/-372m); p9 (tier 1, 41.62760,-70.94499 +/-385m)"}],"items":[{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764dm:g037151924:03715_1924-0002/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Dartmouth, Massachusetts | 1924 | sanborn03715_001 p2","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.86"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-22T13:06:02Z","modified":"2026-10-22T13:06:02Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764dm:g037151924:03715_1924-0002/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764dm:g037151924:03715_1924-0002","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"905.2,1896.3 913.5,1870.8 1550.5,1849.8 1550.8,1912.0 1570.4,1912.0 1552.6,1556.0 1536.4,1556.0 1538.2,898.5 1543.0,420.4 1546.5,319.1 1481.9,312.0 1432.4,259.1 1375.6,358.8 1271.5,358.0 635.4,74.3 594.9,29.8 68.3,75.7 56.5,141.4 26.7,181.2 16.8,948.2 1.0,945.8 1.0,1009.1 256.5,1294.3 192.4,1368.4 851.2,1895.9 905.2,1896.3\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764dm:g037151924:03715_1924-0002/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[584.0,941.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-70.94170387721081,41.60809543984057]}},{"type":"Feature","properties":{"resourceCoords":[1527.0,1569.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-70.93917604945568,41.60727518931391]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764dm:g037151924:03715_1924-0003__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Dartmouth, Massachusetts | 1924 | sanborn03715_001 p3 [1]","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.72"},{"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":"2026-10-22T13:06:02Z","modified":"2026-10-22T13:06:02Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764dm:g037151924:03715_1924-0003__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764dm:g037151924:03715_1924-0003","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"632.5,1471.0 595.8,1062.0 585.1,1063.0 550.1,1260.2 550.7,1284.9 552.5,1358.5 612.8,1445.3 612.0,1632.5 576.8,1682.5 581.0,1718.6 619.4,1721.7 663.6,1736.8 699.3,1749.0 918.5,1835.5 969.5,1704.2 1240.3,1663.3 1267.3,1674.5 1552.9,1691.5 1575.7,1636.3 1579.1,1628.2 1544.4,872.3 1416.8,852.1 1423.2,874.4 1235.9,873.6 1171.4,837.8 1083.2,837.7 794.0,649.0 731.8,558.1 749.5,147.6 346.7,122.9 253.2,162.9 88.2,155.8 44.0,245.7 73.1,676.6 42.5,789.1 48.0,1002.3 134.3,1046.5 524.5,1022.9 584.4,1061.7 595.6,1060.5 574.7,827.1 626.8,826.5 642.3,1471.2 632.5,1471.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764dm:g037151924:03715_1924-0003__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[314.0,185.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-70.94215943398514,41.61808065347793]}},{"type":"Feature","properties":{"resourceCoords":[877.0,1812.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-70.93904809513252,41.61219287464254]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764dm:g037151924:03715_1924-0003__3/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Dartmouth, Massachusetts | 1924 | sanborn03715_001 p3 [3]","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.10"},{"label":"confidence_provisional","value":"true"},{"label":"confidence_model","value":"corpus-v2"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"4176.4"},{"label":"split_canvas_w","value":"2266.4"},{"label":"split_canvas_h","value":"3475.6"}],"created":"2026-10-22T13:06:02Z","modified":"2026-10-22T13:06:02Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764dm:g037151924:03715_1924-0003__3/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764dm:g037151924:03715_1924-0003","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"175.2,1068.3 141.2,1069.8 106.6,1071.3 209.8,1912.0 214.3,1912.0 222.7,1912.0 175.2,1068.3\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764dm:g037151924:03715_1924-0003__3/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,1044.1],"type":"corner"},"geometry":{"type":"Point","coordinates":[-70.94114108398472,41.61583605770672]}},{"type":"Feature","properties":{"resourceCoords":[566.6,1044.1],"type":"corner"},"geometry":{"type":"Point","coordinates":[-70.93902780459393,41.615854091853954]}},{"type":"Feature","properties":{"resourceCoords":[566.6,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-70.93899109344812,41.613415562296126]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-70.94110437283891,41.613397528148894]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764dm:g037151924:03715_1924-0004__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Dartmouth, Massachusetts | 1924 | sanborn03715_001 p4 [2]","metadata":[{"label":"streets","value":"16"},{"label":"intersections","value":"31"},{"label":"confidence","value":"0.80"},{"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":"2026-10-22T13:06:02Z","modified":"2026-10-22T13:06:02Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764dm:g037151924:03715_1924-0004__2/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764dm:g037151924:03715_1924-0004","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"539.3,1756.0 529.5,1755.6 530.8,1826.6 662.4,1852.0 891.1,1814.3 1565.9,1861.5 1580.5,721.3 1489.0,178.2 1486.7,157.9 1457.0,210.8 1171.5,158.9 1145.7,144.3 868.0,152.4 800.6,278.5 590.5,164.6 513.4,127.4 475.0,119.7 474.3,248.5 510.4,258.2 486.2,405.1 430.2,477.6 430.1,489.0 421.4,489.0 419.1,492.1 197.0,489.4 55.8,522.6 41.0,818.1 36.2,818.6 56.9,840.6 377.9,978.2 407.2,978.1 430.2,977.9 457.9,927.5 483.1,953.7 515.6,956.7 514.6,1007.6 515.7,1247.4 519.6,1577.2 527.8,1577.0 539.3,1756.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764dm:g037151924:03715_1924-0004__2/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1253.0,570.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-70.936445,41.611337]}},{"type":"Feature","properties":{"resourceCoords":[669.0,1575.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-70.9384462,41.6073974]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764dm:g037151924:03715_1924-0005__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Dartmouth, Massachusetts | 1924 | sanborn03715_001 p5 [1]","metadata":[{"label":"streets","value":"16"},{"label":"intersections","value":"29"},{"label":"confidence","value":"0.93"},{"label":"confidence_provisional","value":"true"},{"label":"confidence_model","value":"corpus-v2"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"6452.0"},{"label":"split_canvas_h","value":"7652.0"}],"created":"2026-10-22T13:06:02Z","modified":"2026-10-22T13:06:02Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764dm:g037151924:03715_1924-0005__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764dm:g037151924:03715_1924-0005","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1510.8,395.5 1485.0,402.9 1095.5,245.2 1115.5,200.8 952.4,100.7 943.5,71.0 816.5,88.8 652.8,55.2 596.2,80.2 609.6,595.3 565.4,730.3 565.4,730.9 566.9,875.1 564.3,878.3 412.2,859.0 399.0,857.3 237.6,836.8 145.1,826.0 70.9,860.4 51.5,1018.7 84.0,1405.3 43.4,1803.8 83.5,1862.5 1489.9,1874.8 1533.0,1829.1 1487.7,1261.9 1510.8,395.5\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764dm:g037151924:03715_1924-0005__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1123.0,1196.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-70.942844,41.6037421]}},{"type":"Feature","properties":{"resourceCoords":[915.0,637.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-70.9435477,41.6058562]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764dm:g037151924:03715_1924-0007__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Dartmouth, Massachusetts | 1924 | sanborn03715_001 p7 [2]","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.68"},{"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":"5432.0"}],"created":"2026-10-22T13:06:02Z","modified":"2026-10-22T13:06:02Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764dm:g037151924:03715_1924-0007__2/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764dm:g037151924:03715_1924-0007","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1581.7,972.4 1447.7,662.1 1576.4,363.9 1576.5,164.6 1540.6,67.3 1419.9,34.4 909.1,72.7 840.0,161.2 751.3,180.4 750.3,330.1 516.2,439.4 513.6,535.7 85.3,563.6 93.0,608.2 49.1,642.6 26.5,934.0 50.5,1340.0 1064.0,1349.2 1245.2,1310.3 1535.1,1302.4 1514.0,1179.6 1580.5,1099.1 1581.7,972.4\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764dm:g037151924:03715_1924-0007__2/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[702.0,972.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-70.97386957329584,41.6373734416531]}},{"type":"Feature","properties":{"resourceCoords":[1245.0,1126.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-70.97143763513549,41.63650185620131]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764dm:g037151924:03715_1924-0008__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Dartmouth, Massachusetts | 1924 | sanborn03715_001 p8 [2]","metadata":[{"label":"streets","value":"4"},{"label":"intersections","value":"3"},{"label":"confidence","value":"0.86"},{"label":"confidence_provisional","value":"true"},{"label":"confidence_model","value":"corpus-v2"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"2592.4"},{"label":"split_canvas_w","value":"2584.4"},{"label":"split_canvas_h","value":"3032.4"}],"created":"2026-10-22T13:06:02Z","modified":"2026-10-22T13:06:02Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764dm:g037151924:03715_1924-0008__2/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764dm:g037151924:03715_1924-0008","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"446.6,1393.5 619.1,1367.5 626.0,919.3 594.8,780.0 548.0,740.3 325.4,668.0 212.1,702.5 192.2,747.1 67.3,739.9 32.4,768.9 24.3,855.1 35.4,867.7 24.6,882.1 23.6,970.3 61.7,999.9 22.6,1100.8 23.9,1251.2 35.9,1319.8 66.5,1320.5 99.4,1383.3 446.6,1393.5\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764dm:g037151924:03715_1924-0008__2/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[131.0,1199.2],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-70.997143,41.638791]}},{"type":"Feature","properties":{"resourceCoords":[506.1,1199.2],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-70.995383,41.63915]}}]}}]}