{"id":"https://data.mapsnap.org/runs/v2.0/iiif/chronoscope/sanborn03802_003.main.iiif.json","type":"AnnotationPage","@context":["http://www.w3.org/ns/anno.jsonld"],"label":"Needham, Massachusetts | 1906 | 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":"12"},{"label":"placed","value":"6"},{"label":"unplaced","value":"6"},{"label":"fit sources","value":"georef 3, georef-snap 2, snap:0 1"},{"label":"key map","value":"georeferenced"},{"label":"split sheets","value":"1 sheet(s) cut into 4 panels"},{"label":"unplaced pages","value":"p1__1 (tier 1, 42.28784,-71.23654 +/-211m); p1__2 (tier 1, 42.28798,-71.23401 +/-156m); p1__3 (tier 1, 42.28290,-71.23395 +/-100m); p1__4 (tier 3, 42.27426,-71.23331 +/-1543m); p6__2 (tier 1, 42.28082,-71.23087 +/-112m); p6__4 (tier 1, 42.28973,-71.23887 +/-116m)"}],"items":[{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764nm:g038021906:03802_1906-0002/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Needham, Massachusetts | 1906 | sanborn03802_003 p2","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.14"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-19T13:08:07Z","modified":"2026-10-19T13:08:07Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764nm:g038021906:03802_1906-0002/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764nm:g038021906:03802_1906-0002","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"754.0,1897.5 213.0,1905.2 49.2,1831.0 47.8,700.0 144.5,556.0 71.5,477.8 141.1,475.9 150.6,319.5 224.8,360.1 891.0,28.6 1477.9,96.6 1542.7,245.3 1611.5,1160.3 1566.4,1481.2 1485.1,1521.8 1475.4,1774.8 1332.9,1698.3 1296.3,1755.7 1034.6,1766.7 907.2,1876.3 754.0,1897.5\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764nm:g038021906:03802_1906-0002/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.24084763697209,42.297309369137665]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.2378225531012,42.29912762617872]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.23492755788035,42.29645519793969]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.23795264175125,42.294636940898634]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764nm:g038021906:03802_1906-0003/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Needham, Massachusetts | 1906 | sanborn03802_003 p3","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.66"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-19T13:08:07Z","modified":"2026-10-19T13:08:07Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764nm:g038021906:03802_1906-0003/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764nm:g038021906:03802_1906-0003","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1496.0,1858.5 1239.9,1887.0 621.9,1805.8 284.2,1868.9 113.5,1794.5 108.9,1271.9 33.8,995.5 79.2,849.1 59.5,39.4 1196.2,40.4 1298.8,118.4 1465.1,109.7 1576.0,202.4 1566.9,1763.8 1496.0,1858.5\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764nm:g038021906:03802_1906-0003/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1090.0,1445.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.23522566517697,42.29215458182923]}},{"type":"Feature","properties":{"resourceCoords":[320.0,880.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.23700757370817,42.29323222407244]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764nm:g038021906:03802_1906-0004/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Needham, Massachusetts | 1906 | sanborn03802_003 p4","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.77"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-19T13:08:07Z","modified":"2026-10-19T13:08:07Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764nm:g038021906:03802_1906-0004/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764nm:g038021906:03802_1906-0004","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"102.0,9.2 120.5,439.2 140.1,811.5 177.2,1801.5 224.2,1820.6 1345.1,1778.7 1547.5,1816.9 1558.4,212.8 1549.3,133.9 1066.5,95.4 1021.7,31.8 137.2,39.1 121.9,1.0 119.3,1.0 102.0,9.2\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764nm:g038021906:03802_1906-0004/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[132.0,809.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.2369745091211,42.28023721830156]}},{"type":"Feature","properties":{"resourceCoords":[1528.0,1778.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.23443107451033,42.28281092409521]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764nm:g038021906:03802_1906-0005/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Needham, Massachusetts | 1906 | sanborn03802_003 p5","metadata":[{"label":"streets","value":"8"},{"label":"intersections","value":"10"},{"label":"confidence","value":"0.79"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-19T13:08:07Z","modified":"2026-10-19T13:08:07Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764nm:g038021906:03802_1906-0005/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764nm:g038021906:03802_1906-0005","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1409.7,9.9 1360.9,1.0 991.0,1.0 991.4,20.5 47.8,39.5 50.6,1860.7 1443.8,1857.2 1512.4,1888.8 1517.8,889.3 1514.2,513.1 1514.2,78.8 1514.0,51.9 1397.2,49.7 1409.7,9.9\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764nm:g038021906:03802_1906-0005/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[275.0,1355.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.23574,42.2779575]}},{"type":"Feature","properties":{"resourceCoords":[1514.0,50.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.2390764,42.2802165]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764nm:g038021906:03802_1906-0006__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Needham, Massachusetts | 1906 | sanborn03802_003 p6 [1]","metadata":[{"label":"streets","value":"3"},{"label":"intersections","value":"2"},{"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":"3386.0"},{"label":"split_canvas_h","value":"4122.0"}],"created":"2026-10-19T13:08:07Z","modified":"2026-10-19T13:08:07Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764nm:g038021906:03802_1906-0006__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764nm:g038021906:03802_1906-0006","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"27.0,459.4 38.5,998.7 463.4,1006.6 722.5,729.0 707.9,669.7 803.7,665.5 701.6,526.0 800.4,423.4 814.3,247.7 509.5,23.5 34.9,34.5 106.6,412.8 27.0,459.4\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764nm:g038021906:03802_1906-0006__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[388.2,920.5],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.2323296,42.2756442]}},{"type":"Feature","properties":{"resourceCoords":[214.1,-5.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.2319256,42.2772936]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764nm:g038021906:03802_1906-0006__3/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Needham, Massachusetts | 1906 | sanborn03802_003 p6 [3]","metadata":[{"label":"streets","value":"3"},{"label":"intersections","value":"3"},{"label":"confidence","value":"0.63"},{"label":"confidence_provisional","value":"true"},{"label":"confidence_model","value":"corpus-v2"},{"label":"split_canvas_x","value":"2874.4"},{"label":"split_canvas_y","value":"3134.0"},{"label":"split_canvas_w","value":"3577.6"},{"label":"split_canvas_h","value":"4518.0"}],"created":"2026-10-19T13:08:07Z","modified":"2026-10-19T13:08:07Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764nm:g038021906:03802_1906-0006__3/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764nm:g038021906:03802_1906-0006","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1612.0,1269.2 1612.0,833.5 1317.6,796.1 768.3,832.8 758.9,1052.0 823.1,1124.1 851.4,1344.6 758.4,1464.8 766.5,1838.8 1075.6,1893.6 1208.4,1879.6 1278.1,1800.7 1566.6,1821.4 1581.2,1541.3 1508.2,1508.1 1488.4,1293.7 1612.0,1269.2\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764nm:g038021906:03802_1906-0006__3/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1074.3,1711.1],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.240826,42.278601]}},{"type":"Feature","properties":{"resourceCoords":[1074.3,831.5],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.240479,42.280182]}}]}}]}