{"id":"https://data.mapsnap.org/runs/v2.0/iiif/chronoscope/sanborn03821_004.main.iiif.json","type":"AnnotationPage","@context":["http://www.w3.org/ns/anno.jsonld"],"label":"Palmer, Massachusetts | 1902 | 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":"13"},{"label":"placed","value":"7"},{"label":"unplaced","value":"6"},{"label":"fit sources","value":"georef-snap 4, georef 3"},{"label":"key map","value":"georeferenced"},{"label":"split sheets","value":"4 sheet(s) cut into 10 panels"},{"label":"unplaced pages","value":"p1__1 (tier 1, 42.15728,-72.32683 +/-183m); p3__2 (tier 1, 42.15698,-72.32566 +/-107m); p6__2 (tier 1, 42.15186,-72.32084 +/-116m); p7__3 (tier 1, 42.15764,-72.33106 +/-100m); p7__4 (tier 1, 42.16158,-72.32913 +/-126m); p7__5 (tier 1, 42.15741,-72.33170 +/-100m)"}],"items":[{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764pm:g038211902:03821_1902-0002/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Palmer, Massachusetts | 1902 | sanborn03821_004 p2","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.95"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-19T00:30:30Z","modified":"2026-10-19T00:30:30Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764pm:g038211902:03821_1902-0002/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764pm:g038211902:03821_1902-0002","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"849.1,1861.0 530.5,1865.8 403.1,1756.3 113.6,1642.6 58.5,1542.5 35.2,468.2 107.7,97.9 386.2,143.7 389.2,122.6 1287.9,101.4 1289.0,129.3 1325.8,183.3 1503.5,150.7 1592.7,374.6 1612.0,368.8 1612.0,502.4 1574.1,648.4 1568.0,645.1 1380.3,994.2 1394.7,1123.9 1439.0,1658.4 1410.2,1845.2 1228.0,1754.2 855.5,1870.8 854.0,1873.4 849.1,1861.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764pm:g038211902:03821_1902-0002/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1207.0,1761.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.33038059840345,42.15770683800989]}},{"type":"Feature","properties":{"resourceCoords":[401.0,113.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.33073818859069,42.1611875822566]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764pm:g038211902:03821_1902-0003__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Palmer, Massachusetts | 1902 | sanborn03821_004 p3 [1]","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"7"},{"label":"confidence","value":"0.97"},{"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":"2026-10-19T00:30:30Z","modified":"2026-10-19T00:30:30Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764pm:g038211902:03821_1902-0003__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764pm:g038211902:03821_1902-0003","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"76.4,604.7 75.8,1047.2 77.2,1396.0 80.3,1762.9 559.1,1840.3 559.1,1868.4 1433.1,1853.0 1433.0,1870.5 1571.8,1845.5 1561.9,888.3 1436.2,811.1 1184.7,811.0 1130.1,811.0 1130.1,811.0 1009.6,312.4 845.5,194.3 858.6,15.3 844.0,1.0 759.0,1.0 701.7,32.3 554.3,69.1 554.3,62.4 165.4,64.7 60.5,137.9 76.4,604.7\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764pm:g038211902:03821_1902-0003__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[557.0,1049.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.3268057,42.1579563]}},{"type":"Feature","properties":{"resourceCoords":[77.0,1371.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.327234,42.156881]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764pm:g038211902:03821_1902-0004/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Palmer, Massachusetts | 1902 | sanborn03821_004 p4","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.90"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-19T00:30:30Z","modified":"2026-10-19T00:30:30Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764pm:g038211902:03821_1902-0004/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764pm:g038211902:03821_1902-0004","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"376.0,1871.6 376.9,1779.8 999.1,1778.8 1010.9,1819.7 1481.2,1743.5 1477.4,1370.5 1475.2,1021.6 1474.8,578.9 1457.9,111.9 1018.8,402.0 844.4,465.4 836.8,265.6 561.9,1.0 557.1,1.0 477.6,97.2 366.1,68.2 287.9,130.1 159.7,132.3 254.6,246.9 290.0,411.6 141.8,569.0 134.4,1375.2 62.0,1757.7 132.0,1869.7 351.9,1843.8 376.0,1871.6\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764pm:g038211902:03821_1902-0004/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[862.0,486.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.32990618664806,42.15740587845164]}},{"type":"Feature","properties":{"resourceCoords":[862.0,238.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.33031939180293,42.15777650781292]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764pm:g038211902:03821_1902-0005/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Palmer, Massachusetts | 1902 | sanborn03821_004 p5","metadata":[{"label":"streets","value":"7"},{"label":"intersections","value":"6"},{"label":"confidence","value":"0.92"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-19T00:30:30Z","modified":"2026-10-19T00:30:30Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764pm:g038211902:03821_1902-0005/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764pm:g038211902:03821_1902-0005","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1470.0,1140.9 1435.2,1875.0 1314.5,1858.9 281.1,1881.3 245.7,1912.0 151.7,1912.0 151.1,1282.2 192.6,1270.3 115.8,794.1 109.8,794.1 187.6,309.1 216.0,309.0 656.5,307.5 657.1,298.3 872.9,13.0 881.2,73.9 1333.8,46.2 1494.9,143.7 1483.3,309.3 1494.8,309.3 1516.2,774.5 1472.0,1140.3 1470.0,1140.9\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764pm:g038211902:03821_1902-0005/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1301.0,309.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.3236445,42.1551352]}},{"type":"Feature","properties":{"resourceCoords":[216.0,309.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.325432,42.156736]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764pm:g038211902:03821_1902-0006__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Palmer, Massachusetts | 1902 | sanborn03821_004 p6 [1]","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"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":"0.0"},{"label":"split_canvas_w","value":"6452.0"},{"label":"split_canvas_h","value":"7652.0"}],"created":"2026-10-19T00:30:30Z","modified":"2026-10-19T00:30:30Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764pm:g038211902:03821_1902-0006__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764pm:g038211902:03821_1902-0006","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"174.9,1842.7 1401.2,1865.7 1494.1,1825.9 1495.1,1734.5 1579.9,1655.9 1570.0,670.5 1396.7,641.1 1074.8,724.0 889.3,636.5 696.9,636.5 696.5,633.1 692.5,633.1 692.5,599.7 637.5,137.5 582.3,68.0 133.1,51.2 39.0,124.3 46.1,289.3 57.5,288.0 131.0,745.5 128.6,1112.2 126.7,1112.9 174.9,1842.7\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764pm:g038211902:03821_1902-0006__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[786.0,861.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.3235384748341,42.1530718430763]}},{"type":"Feature","properties":{"resourceCoords":[1212.0,794.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.32278850061572,42.15245550082506]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764pm:g038211902:03821_1902-0007__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Palmer, Massachusetts | 1902 | sanborn03821_004 p7 [1]","metadata":[{"label":"streets","value":"2"},{"label":"intersections","value":"1"},{"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":"3640.8"},{"label":"split_canvas_h","value":"4790.0"}],"created":"2026-10-19T00:30:30Z","modified":"2026-10-19T00:30:30Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764pm:g038211902:03821_1902-0007__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764pm:g038211902:03821_1902-0007","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"86.0,275.1 88.7,1166.5 888.0,1150.6 904.6,874.1 823.3,536.7 859.5,493.1 792.9,435.5 897.5,253.8 742.0,139.2 743.7,63.5 347.1,46.7 136.8,1.0 115.4,1.0 65.2,271.7 86.0,275.1\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764pm:g038211902:03821_1902-0007__1/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-72.3315202993833,42.161209625943535]}},{"type":"Feature","properties":{"resourceCoords":[910.2,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-72.33069530400384,42.162845233339574]}},{"type":"Feature","properties":{"resourceCoords":[910.2,1197.5],"type":"corner"},"geometry":{"type":"Point","coordinates":[-72.32779211338963,42.1620396956181]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1197.5],"type":"corner"},"geometry":{"type":"Point","coordinates":[-72.3286171087691,42.16040408822206]}},{"type":"Feature","properties":{"resourceCoords":[89.0,1166.5],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.328612,42.160584]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764pm:g038211902:03821_1902-0007__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Palmer, Massachusetts | 1902 | sanborn03821_004 p7 [2]","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":"3640.8"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"2811.2"},{"label":"split_canvas_h","value":"3573.6"}],"created":"2026-10-19T00:30:30Z","modified":"2026-10-19T00:30:30Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764pm:g038211902:03821_1902-0007__2/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764pm:g038211902:03821_1902-0007","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1535.7,55.8 1282.1,27.9 1067.8,94.4 967.8,31.0 962.1,1.0 944.5,1.0 969.0,869.5 1401.4,864.0 1402.0,855.0 1611.2,572.8 1535.7,55.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764pm:g038211902:03821_1902-0007__2/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[966.2,869.4],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.32543640147112,42.15674031379946]}},{"type":"Feature","properties":{"resourceCoords":[1405.0,869.4],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.32470818151099,42.15607580240644]}}]}}]}