{"id":"https://data.mapsnap.org/runs/v2.0/iiif/chronoscope/sanborn03720_005.main.iiif.json","type":"AnnotationPage","@context":["http://www.w3.org/ns/anno.jsonld"],"label":"East Pepperell, Massachusetts | 1922 | 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":"11"},{"label":"placed","value":"6"},{"label":"unplaced","value":"5"},{"label":"fit sources","value":"georef 3, georef-snap 3"},{"label":"key map","value":"georeferenced"},{"label":"split sheets","value":"4 sheet(s) cut into 9 panels"},{"label":"unplaced pages","value":"p2__2 (tier 1, 42.67089,-71.57739 +/-102m); p6__1 (tier 1, 42.66805,-71.59774 +/-252m); p6__2 (tier 1, 42.70165,-71.53903 +/-124m); p7__1 (tier 4, 42.66807,-71.57880 +/-682m); p7__2 (tier 1, 42.67186,-71.57691 +/-131m)"}],"items":[{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764em:g037201922:03720_1922-0002__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"East Pepperell, Massachusetts | 1922 | sanborn03720_005 p2 [1]","metadata":[{"label":"streets","value":"10"},{"label":"intersections","value":"14"},{"label":"confidence","value":"0.60"},{"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":"2026-10-19T01:13:52Z","modified":"2026-10-19T01:13:52Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764em:g037201922:03720_1922-0002__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764em:g037201922:03720_1922-0002","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1.0,1003.8 1.0,1011.1 34.4,1032.5 79.0,1325.9 71.7,1479.9 96.5,1536.1 67.5,1823.4 272.7,1807.4 695.4,1893.2 910.7,1874.3 1285.3,1899.7 1541.0,1877.2 1591.9,1815.3 1568.9,1708.8 1591.2,1558.8 1561.7,1448.7 1580.5,1390.7 1543.8,1340.7 1522.8,1090.2 1569.9,855.5 1563.7,702.7 1504.5,670.3 1189.7,660.5 1123.6,633.0 810.0,636.6 809.6,634.0 805.2,634.0 804.9,592.9 750.0,121.4 613.9,128.2 437.9,36.2 17.6,17.7 16.8,116.5 1.0,301.2 1.0,618.1 65.2,982.3 38.6,991.2 1.0,1003.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764em:g037201922:03720_1922-0002__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1165.0,1451.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.5677611,42.6672192]}},{"type":"Feature","properties":{"resourceCoords":[881.0,856.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.5703786,42.6686089]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764em:g037201922:03720_1922-0003/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"East Pepperell, Massachusetts | 1922 | sanborn03720_005 p3","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.38"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-19T01:13:52Z","modified":"2026-10-19T01:13:52Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764em:g037201922:03720_1922-0003/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764em:g037201922:03720_1922-0003","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"757.6,1903.8 370.8,1740.6 401.5,1634.0 141.1,1529.8 61.2,1416.7 163.8,847.9 84.7,454.3 216.8,437.2 297.3,287.0 384.8,254.8 394.1,171.9 528.9,182.7 712.6,52.7 1143.1,19.8 1466.8,87.7 1581.9,430.4 1585.4,1293.1 1612.0,1294.0 1612.0,1511.2 1581.0,1912.0 1119.3,1912.0 855.4,1866.8 763.8,1912.0 761.3,1912.0 757.6,1903.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764em:g037201922:03720_1922-0003/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1291.0,628.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.57747469697263,42.67052528963821]}},{"type":"Feature","properties":{"resourceCoords":[478.0,512.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.57930258722352,42.670034723835826]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764em:g037201922:03720_1922-0004/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"East Pepperell, Massachusetts | 1922 | sanborn03720_005 p4","metadata":[{"label":"streets","value":"5"},{"label":"intersections","value":"4"},{"label":"confidence","value":"0.38"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-19T01:13:52Z","modified":"2026-10-19T01:13:52Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764em:g037201922:03720_1922-0004/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764em:g037201922:03720_1922-0004","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1038.0,1905.0 1091.2,1899.6 1270.6,1809.4 1579.5,1807.5 1565.2,357.9 1583.9,260.3 1591.0,205.1 869.0,1.0 223.0,1.0 154.4,140.1 1.0,351.4 1.0,474.1 133.8,742.5 48.5,1095.4 161.7,1662.3 23.7,1788.3 1.0,1824.0 1.0,1825.5 580.9,1775.3 720.9,1709.4 786.0,1836.0 825.0,1912.0 1031.7,1912.0 1038.0,1905.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764em:g037201922:03720_1922-0004/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[543.0,1363.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.577359,42.6661972]}},{"type":"Feature","properties":{"resourceCoords":[1591.0,205.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.5735875,42.6668015]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764em:g037201922:03720_1922-0005__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"East Pepperell, Massachusetts | 1922 | sanborn03720_005 p5 [1]","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.15"},{"label":"confidence_provisional","value":"true"},{"label":"confidence_model","value":"corpus-v2"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"2929.6"},{"label":"split_canvas_w","value":"4066.8"},{"label":"split_canvas_h","value":"4722.4"}],"created":"2026-10-19T01:13:52Z","modified":"2026-10-19T01:13:52Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764em:g037201922:03720_1922-0005__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764em:g037201922:03720_1922-0005","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"879.4,1414.0 911.8,1395.6 890.0,1370.0 822.1,1290.4 784.5,1260.3 757.4,1214.5 729.4,1181.7 704.3,1152.3 586.3,1079.6 412.8,758.0 315.8,787.3 70.4,777.2 13.0,995.8 186.8,1342.3 58.1,1695.2 48.9,1874.3 208.0,1889.8 365.9,1861.0 567.8,1891.8 734.1,1861.0 819.5,1780.8 967.5,1739.8 962.6,1676.0 879.4,1414.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764em:g037201922:03720_1922-0005__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[438.9,1653.1],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.58669522959124,42.666067583004185]}},{"type":"Feature","properties":{"resourceCoords":[234.9,1207.2],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.58610427907884,42.66770808494227]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764em:g037201922:03720_1922-0005__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"East Pepperell, Massachusetts | 1922 | sanborn03720_005 p5 [2]","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"5"},{"label":"confidence","value":"0.25"},{"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":"2026-10-19T01:13:52Z","modified":"2026-10-19T01:13:52Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764em:g037201922:03720_1922-0005__2/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764em:g037201922:03720_1922-0005","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"57.1,751.9 64.3,748.4 425.4,731.6 557.8,979.6 730.9,1183.0 793.4,1210.0 827.6,1295.8 1030.8,1514.0 1064.5,1644.9 1052.8,1751.0 1262.7,1860.7 1533.8,1843.0 1536.5,1711.5 1588.1,1660.8 1605.2,1291.8 1588.3,245.5 1608.5,241.8 1581.2,236.7 1577.1,239.3 1474.2,209.4 1465.7,166.0 1451.7,93.5 1372.4,106.1 998.8,31.8 517.5,30.4 476.7,65.2 450.9,49.8 371.2,90.0 287.0,70.7 1.0,207.3 1.0,224.4 21.9,280.6 31.6,332.2 56.2,372.9 103.8,500.8 67.6,506.9 57.1,751.9\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764em:g037201922:03720_1922-0005__2/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[569.0,427.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.5819967,42.6654201]}},{"type":"Feature","properties":{"resourceCoords":[131.0,496.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.584076,42.665701]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764em:g037201922:03720_1922-0007__3/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"East Pepperell, Massachusetts | 1922 | sanborn03720_005 p7 [3]","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.33"},{"label":"confidence_provisional","value":"true"},{"label":"confidence_model","value":"corpus-v2"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"3852.0"},{"label":"split_canvas_w","value":"6452.0"},{"label":"split_canvas_h","value":"3800.0"}],"created":"2026-10-19T01:13:52Z","modified":"2026-10-19T01:13:52Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764em:g037201922:03720_1922-0007__3/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764em:g037201922:03720_1922-0007","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1585.0,1186.3 1435.6,1138.7 1337.7,1196.8 1009.5,1198.5 931.1,1123.8 854.4,1173.1 852.8,1049.2 768.8,996.9 97.4,994.0 14.5,1262.6 37.5,1684.1 518.7,1883.0 732.3,1911.4 1505.4,1907.0 1559.3,1844.7 1523.0,1745.2 1585.0,1186.3\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764em:g037201922:03720_1922-0007__3/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1120.0,1651.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.58134662586632,42.673365300936545]}},{"type":"Feature","properties":{"resourceCoords":[220.0,1363.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.58045982897605,42.67499110790445]}}]}}]}