{"id":"https://data.mapsnap.org/runs/v2.0/iiif/chronoscope/sanborn03725_001.main.iiif.json","type":"AnnotationPage","@context":["http://www.w3.org/ns/anno.jsonld"],"label":"Everett, Massachusetts | 1892 | 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":"28"},{"label":"placed","value":"18"},{"label":"unplaced","value":"10"},{"label":"fit sources","value":"georef-snap 10, georef 5, snap:0 3"},{"label":"key map","value":"georeferenced"},{"label":"split sheets","value":"10 sheet(s) cut into 23 panels"},{"label":"unplaced pages","value":"p10__2 (tier 3, 42.40310,-71.05875 +/-690m); p11__2 (tier 3, 42.40644,-71.06331 +/-690m); p12__3 (tier 1, 42.40388,-71.06706 +/-100m); p13__2 (tier 2, 42.40526,-71.06354 +/-100m); p15__1 (tier 1, 42.41383,-71.06590 +/-212m); p16__2 (tier 1, 42.39569,-71.06339 +/-100m); p2__1 (tier 1, 42.40386,-71.05172 +/-115m); p4__2 (tier 1, 42.40761,-71.04527 +/-100m); p5__2 (tier 1, 42.40031,-71.04669 +/-134m); p5__3 (tier 1, 42.40315,-71.04907 +/-100m)"}],"items":[{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764em:g037251892:03725_1892-0010__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Everett, Massachusetts | 1892 | sanborn03725_001 p10 [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":"2026-10-19T15:07:49Z","modified":"2026-10-19T15:07:49Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764em:g037251892:03725_1892-0010__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764em:g037251892:03725_1892-0010","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"244.3,236.0 62.8,1099.7 47.0,1143.8 1.0,1121.0 1.0,1195.5 60.8,1267.0 96.4,1390.0 82.4,1495.9 101.0,1582.7 138.1,1649.7 68.8,1698.5 42.8,1694.7 91.2,1769.8 240.1,1868.7 432.1,1888.9 447.0,1912.0 661.5,1912.0 838.0,1830.8 883.4,1437.7 1522.5,1424.1 1600.2,1306.4 1610.6,461.7 1553.9,108.8 1464.3,22.6 1152.4,10.9 1150.9,46.4 644.9,83.5 645.2,74.1 279.7,67.7 263.2,146.4 175.4,138.2 244.3,236.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764em:g037251892:03725_1892-0010__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":[-71.05926148301721,42.40517998888293]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.05580467030211,42.40352536743112]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.05844355600017,42.40047666436734]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.06190036871527,42.402131285819145]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764em:g037251892:03725_1892-0011__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Everett, Massachusetts | 1892 | sanborn03725_001 p11 [1]","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.96"},{"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":"2026-10-19T15:07:49Z","modified":"2026-10-19T15:07:49Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764em:g037251892:03725_1892-0011__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764em:g037251892:03725_1892-0011","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"100.5,1785.8 916.5,1799.3 915.6,1849.6 945.5,1884.0 950.0,1777.2 1001.5,1757.7 1446.4,1856.0 1440.5,1825.0 1465.1,1806.1 1520.8,1808.5 1488.3,1720.2 1503.2,1365.9 1575.9,1014.1 1593.6,1014.9 1612.0,995.6 1612.0,910.1 1534.5,901.7 1451.6,866.6 1371.7,793.4 1248.7,751.2 1152.7,759.0 1091.3,716.1 1138.2,691.0 1110.8,652.2 500.1,1.0 376.4,1.0 130.4,220.7 128.6,333.0 84.1,392.7 127.3,407.8 126.4,464.6 121.8,672.9 118.1,958.4 101.0,1764.0 100.5,1785.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764em:g037251892:03725_1892-0011__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[946.0,923.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.0613443560012,42.40364878166114]}},{"type":"Feature","properties":{"resourceCoords":[327.0,923.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.0614099281578,42.404801771120255]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764em:g037251892:03725_1892-0012__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Everett, Massachusetts | 1892 | sanborn03725_001 p12 [1]","metadata":[{"label":"streets","value":"11"},{"label":"intersections","value":"15"},{"label":"confidence","value":"0.98"},{"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":"6104.4"}],"created":"2026-10-19T15:07:49Z","modified":"2026-10-19T15:07:49Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764em:g037251892:03725_1892-0012__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764em:g037251892:03725_1892-0012","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1168.0,9.9 1164.0,39.6 723.6,38.3 596.6,153.2 243.9,168.3 58.5,267.4 126.5,540.3 192.4,549.0 188.0,1143.5 123.3,1443.2 893.6,1465.8 1365.4,1042.2 1407.9,1003.6 1458.9,1003.3 1454.3,175.7 1383.1,175.7 1168.0,9.9\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764em:g037251892:03725_1892-0012__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[985.0,517.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.0647614,42.4045118]}},{"type":"Feature","properties":{"resourceCoords":[211.0,183.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.0667042,42.4050975]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764em:g037251892:03725_1892-0012__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Everett, Massachusetts | 1892 | sanborn03725_001 p12 [2]","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":"1590.0"},{"label":"split_canvas_y","value":"4010.0"},{"label":"split_canvas_w","value":"4862.0"},{"label":"split_canvas_h","value":"3642.0"}],"created":"2026-10-19T15:07:49Z","modified":"2026-10-19T15:07:49Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764em:g037251892:03725_1892-0012__2/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764em:g037251892:03725_1892-0012","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"497.2,1909.0 1395.7,1912.0 1457.0,1912.0 1543.9,1868.2 1594.3,1391.5 1563.0,1062.7 1414.9,1033.2 908.0,1464.5 894.1,1470.1 893.4,1470.7 803.4,1470.2 495.1,1469.2 451.4,1563.4 397.5,1572.5 397.5,1623.6 397.5,1745.4 430.8,1731.5 497.2,1909.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764em:g037251892:03725_1892-0012__2/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[397.5,1002.5],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.05915449080985,42.400959810904126]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,1002.5],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.06037144738207,42.39878624979063]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.06256114615378,42.399464253649136]}},{"type":"Feature","properties":{"resourceCoords":[397.5,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.06134418958156,42.40163781476262]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764em:g037251892:03725_1892-0013__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Everett, Massachusetts | 1892 | sanborn03725_001 p13 [1]","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.96"},{"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":"2026-10-19T15:07:49Z","modified":"2026-10-19T15:07:49Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764em:g037251892:03725_1892-0013__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764em:g037251892:03725_1892-0013","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"406.6,1771.8 1207.1,1799.6 1490.8,1807.2 1612.0,1811.5 1612.0,1717.6 1612.0,1669.7 1580.2,1666.4 1567.1,88.1 1505.6,27.1 1167.7,15.5 760.0,93.7 739.6,330.2 679.0,411.1 679.0,412.5 677.9,412.5 677.4,413.2 146.4,412.5 136.2,412.5 48.2,457.5 134.0,1117.8 214.2,1230.3 201.8,1452.9 127.2,1499.2 110.5,1598.7 315.4,1768.6 406.6,1771.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764em:g037251892:03725_1892-0013__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1022.0,844.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.06212557650049,42.406958479698346]}},{"type":"Feature","properties":{"resourceCoords":[1022.0,1044.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.06209737859714,42.406583934329774]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764em:g037251892:03725_1892-0014__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Everett, Massachusetts | 1892 | sanborn03725_001 p14 [1]","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.95"},{"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":"2026-10-19T15:07:49Z","modified":"2026-10-19T15:07:49Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764em:g037251892:03725_1892-0014__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764em:g037251892:03725_1892-0014","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"118.3,1663.5 139.4,1807.2 264.6,1843.8 903.1,1814.0 1495.8,1885.1 1608.8,1814.8 1573.1,1457.3 1168.4,1504.2 1058.9,1463.9 948.5,502.0 973.6,106.6 686.3,32.3 141.1,76.2 83.5,465.4 112.3,465.5 111.2,774.2 114.9,908.1 134.6,1396.4 143.6,1539.5 142.3,1663.4 118.3,1663.5\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764em:g037251892:03725_1892-0014__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[106.0,176.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.06350978234079,42.41329354721171]}},{"type":"Feature","properties":{"resourceCoords":[106.0,1807.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.06257619784284,42.41033252051645]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764em:g037251892:03725_1892-0014__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Everett, Massachusetts | 1892 | sanborn03725_001 p14 [2]","metadata":[{"label":"streets","value":"3"},{"label":"intersections","value":"2"},{"label":"confidence","value":"0.11"},{"label":"confidence_provisional","value":"true"},{"label":"confidence_model","value":"corpus-v2"},{"label":"split_canvas_x","value":"3900.0"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"2552.0"},{"label":"split_canvas_h","value":"5736.0"}],"created":"2026-10-19T15:07:49Z","modified":"2026-10-19T15:07:49Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764em:g037251892:03725_1892-0014__2/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764em:g037251892:03725_1892-0014","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1096.5,946.2 1113.7,1372.3 1492.3,1378.8 1592.5,751.1 1503.1,99.3 1130.1,188.5 1045.5,364.6 1023.9,699.9 1096.5,946.2\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764em:g037251892:03725_1892-0014__2/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1528.0,201.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.0478176,42.3993854]}},{"type":"Feature","properties":{"resourceCoords":[1327.0,514.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.0486324,42.3989163]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764em:g037251892:03725_1892-0015__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Everett, Massachusetts | 1892 | sanborn03725_001 p15 [2]","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.97"},{"label":"confidence_provisional","value":"true"},{"label":"confidence_model","value":"corpus-v2"},{"label":"split_canvas_x","value":"1698.4"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"4753.6"},{"label":"split_canvas_h","value":"7652.0"}],"created":"2026-10-19T15:07:49Z","modified":"2026-10-19T15:07:49Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764em:g037251892:03725_1892-0015__2/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764em:g037251892:03725_1892-0015","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1601.0,128.8 1600.9,117.5 1600.8,105.1 1478.7,104.0 1337.5,113.0 856.0,132.8 723.9,136.6 424.6,135.7 424.6,164.8 467.7,171.2 453.5,453.7 573.2,1075.2 521.0,1774.1 582.5,1825.0 882.1,1828.6 1122.9,1737.9 1551.8,1815.5 1501.7,1715.8 1592.3,1546.3 1593.2,1194.7 1530.2,139.2 1601.0,128.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764em:g037251892:03725_1892-0015__2/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[845.4,118.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.06303824433455,42.411993949130085]}},{"type":"Feature","properties":{"resourceCoords":[845.4,1764.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.06714086430546,42.41129130377732]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764em:g037251892:03725_1892-0016__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Everett, Massachusetts | 1892 | sanborn03725_001 p16 [1]","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.91"},{"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":"2026-10-19T15:07:49Z","modified":"2026-10-19T15:07:49Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764em:g037251892:03725_1892-0016__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764em:g037251892:03725_1892-0016","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"131.1,1852.3 1556.1,1847.6 1596.5,1745.3 1535.2,954.1 1564.7,284.1 1148.2,280.9 1090.7,71.9 984.1,25.7 331.3,19.5 56.0,72.6 43.8,837.8 117.2,1825.1 131.1,1852.3\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764em:g037251892:03725_1892-0016__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[253.0,894.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.06460292106239,42.396672455314345]}},{"type":"Feature","properties":{"resourceCoords":[374.0,474.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.06371911567791,42.39716614443827]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764em:g037251892:03725_1892-0002__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Everett, Massachusetts | 1892 | sanborn03725_001 p2 [2]","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.14"},{"label":"confidence_provisional","value":"true"},{"label":"confidence_model","value":"corpus-v2"},{"label":"split_canvas_x","value":"3757.2"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"2694.8"},{"label":"split_canvas_h","value":"2024.0"}],"created":"2026-10-19T15:07:49Z","modified":"2026-10-19T15:07:49Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764em:g037251892:03725_1892-0002__2/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764em:g037251892:03725_1892-0002","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"982.8,502.8 1396.2,476.9 1567.2,294.5 1435.2,185.7 1508.4,115.8 1337.2,53.8 1245.5,94.5 1016.2,69.4 943.3,241.6 944.4,308.4 965.4,308.6 982.8,502.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764em:g037251892:03725_1892-0002__2/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[939.3,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.05151771217935,42.41637446492871]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.05026549649662,42.417348440591155]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,506.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.04928201176327,42.41664949903695]}},{"type":"Feature","properties":{"resourceCoords":[939.3,506.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.050534227446,42.4156755233745]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764em:g037251892:03725_1892-0002__3/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Everett, Massachusetts | 1892 | sanborn03725_001 p2 [3]","metadata":[{"label":"streets","value":"8"},{"label":"intersections","value":"11"},{"label":"confidence","value":"0.91"},{"label":"confidence_provisional","value":"true"},{"label":"confidence_model","value":"corpus-v2"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"1636.0"},{"label":"split_canvas_w","value":"6452.0"},{"label":"split_canvas_h","value":"6016.0"}],"created":"2026-10-19T15:07:49Z","modified":"2026-10-19T15:07:49Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764em:g037251892:03725_1892-0002__3/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764em:g037251892:03725_1892-0002","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"48.5,480.0 116.6,506.4 58.6,666.0 59.3,1719.5 134.8,1813.2 1437.0,1829.9 1497.2,1889.0 6.1,1864.2 1.6,1908.9 1014.1,1912.0 1580.2,1912.0 1576.6,1893.7 1514.6,1591.0 1483.7,1457.4 1467.7,1345.0 1412.3,1115.9 1377.8,957.9 1290.2,631.7 1266.2,531.2 1259.9,506.0 1251.6,506.0 1204.8,506.0 1204.9,510.4 722.9,510.3 548.2,437.5 319.8,449.7 317.9,431.1 117.1,455.1 117.8,476.8 48.5,480.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764em:g037251892:03725_1892-0002__3/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[461.0,849.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.0509752,42.4149852]}},{"type":"Feature","properties":{"resourceCoords":[1409.0,1101.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.049718,42.413347]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764em:g037251892:03725_1892-0003/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Everett, Massachusetts | 1892 | sanborn03725_001 p3","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.98"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-19T15:07:49Z","modified":"2026-10-19T15:07:49Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764em:g037251892:03725_1892-0003/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764em:g037251892:03725_1892-0003","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"320.4,1525.7 292.8,1390.4 279.7,1276.9 230.2,1045.1 199.7,885.2 120.1,554.9 98.7,453.1 93.0,427.6 37.5,426.2 33.5,70.5 76.4,19.6 170.1,18.7 1513.8,54.6 1492.8,114.2 1591.0,225.9 1579.7,925.7 1583.9,929.2 1528.4,1265.9 1552.7,1261.7 1612.0,1566.3 1612.0,1751.2 1570.8,1780.6 1554.5,1865.4 1464.1,1883.9 377.8,1850.2 374.8,1831.7 320.4,1525.7\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764em:g037251892:03725_1892-0003/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[915.0,898.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.04820377226153,42.41261529730939]}},{"type":"Feature","properties":{"resourceCoords":[651.0,1839.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.05038512793293,42.41167571815071]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764em:g037251892:03725_1892-0004__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Everett, Massachusetts | 1892 | sanborn03725_001 p4 [1]","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.98"},{"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":"2026-10-19T15:07:49Z","modified":"2026-10-19T15:07:49Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764em:g037251892:03725_1892-0004__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764em:g037251892:03725_1892-0004","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"32.4,732.3 91.2,993.6 38.6,1322.7 55.0,1849.0 86.5,1862.8 1558.7,1867.0 1533.1,806.9 1469.0,609.2 1376.2,608.1 1270.7,517.0 1262.1,517.0 1254.2,502.8 1187.5,445.2 1173.3,357.0 1168.0,347.4 1168.2,325.4 1125.8,61.8 1055.5,20.8 259.4,32.7 242.8,1.0 212.1,1.0 48.4,267.8 72.7,273.2 1.0,636.8 1.0,739.7 32.4,732.3\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764em:g037251892:03725_1892-0004__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[236.0,785.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.04777414451938,42.41025903266874]}},{"type":"Feature","properties":{"resourceCoords":[1126.0,964.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.04583322000607,42.409318910589455]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764em:g037251892:03725_1892-0005__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Everett, Massachusetts | 1892 | sanborn03725_001 p5 [1]","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"8"},{"label":"confidence","value":"0.98"},{"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":"2026-10-19T15:07:49Z","modified":"2026-10-19T15:07:49Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764em:g037251892:03725_1892-0005__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764em:g037251892:03725_1892-0005","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"132.1,1777.8 326.8,1878.2 1486.2,1836.3 1545.2,1808.3 1565.3,1557.5 1525.6,1464.5 1386.8,1481.9 1340.7,1449.5 1324.5,1411.9 1297.7,605.5 1320.2,361.4 1323.5,360.2 1323.5,354.0 1339.5,354.0 1508.5,288.8 1542.8,78.8 1271.0,20.2 798.1,130.0 722.3,64.8 636.1,102.1 517.0,44.1 150.1,41.2 148.3,1.0 122.2,1.0 122.8,187.2 127.8,187.2 123.3,1578.7 63.6,1579.4 132.1,1777.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764em:g037251892:03725_1892-0005__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[913.0,188.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.0453307,42.4056815]}},{"type":"Feature","properties":{"resourceCoords":[518.0,188.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.0462774,42.4059228]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764em:g037251892:03725_1892-0006/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Everett, Massachusetts | 1892 | sanborn03725_001 p6","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.97"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-19T15:07:49Z","modified":"2026-10-19T15:07:49Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764em:g037251892:03725_1892-0006/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764em:g037251892:03725_1892-0006","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"22.2,1372.5 65.1,1376.7 131.1,1025.4 181.3,1023.7 100.8,721.2 223.9,107.7 284.9,105.3 316.2,20.5 1500.6,28.1 1556.4,61.6 1566.0,367.0 1540.5,366.7 1539.0,550.0 1543.8,550.0 1523.9,1912.0 1465.4,1912.0 1454.5,1879.4 100.6,1876.1 31.6,1802.5 22.8,1597.2 13.1,1595.0 22.2,1372.5\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764em:g037251892:03725_1892-0006/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1529.0,642.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.04732353763899,42.40600459650986]}},{"type":"Feature","properties":{"resourceCoords":[860.0,990.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.04925223024352,42.405776674982555]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764em:g037251892:03725_1892-0007/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Everett, Massachusetts | 1892 | sanborn03725_001 p7","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.98"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-19T15:07:49Z","modified":"2026-10-19T15:07:49Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764em:g037251892:03725_1892-0007/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764em:g037251892:03725_1892-0007","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"107.2,565.7 116.4,395.1 134.3,152.9 115.7,78.1 384.2,88.2 705.3,95.5 781.0,93.4 1009.8,98.6 1208.4,107.0 1371.5,109.2 1514.5,116.0 1497.8,138.6 1583.5,363.9 1586.3,1357.2 1525.5,1447.5 1588.8,1659.0 955.6,1693.1 679.1,1848.5 664.8,1799.7 303.4,1823.6 296.7,1780.4 76.0,1827.7 46.0,564.5 107.2,565.7\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764em:g037251892:03725_1892-0007/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1012.0,1209.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.05186050001522,42.407307212406494]}},{"type":"Feature","properties":{"resourceCoords":[93.0,2169.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.05107142642825,42.404867456397476]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764em:g037251892:03725_1892-0008/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Everett, Massachusetts | 1892 | sanborn03725_001 p8","metadata":[{"label":"streets","value":"11"},{"label":"intersections","value":"13"},{"label":"confidence","value":"0.98"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-19T15:07:49Z","modified":"2026-10-19T15:07:49Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764em:g037251892:03725_1892-0008/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764em:g037251892:03725_1892-0008","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1493.0,1505.6 1054.9,1583.2 921.7,1612.2 858.8,1648.4 731.4,1752.7 657.2,1802.1 588.5,1834.1 473.0,1877.3 468.6,1873.0 63.9,1868.7 20.5,1726.5 29.4,403.9 45.4,196.6 132.3,44.6 1239.8,25.7 1482.6,43.7 1558.6,98.5 1553.8,241.0 1554.0,403.4 1548.5,601.4 1546.7,829.2 1549.9,904.6 1547.2,1224.4 1541.0,1492.0 1493.0,1505.6\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764em:g037251892:03725_1892-0008/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[624.0,523.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.056113,42.409534]}},{"type":"Feature","properties":{"resourceCoords":[1541.0,1492.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.0555317,42.4070423]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764em:g037251892:03725_1892-0009/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Everett, Massachusetts | 1892 | sanborn03725_001 p9","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.82"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-19T15:07:49Z","modified":"2026-10-19T15:07:49Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764em:g037251892:03725_1892-0009/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764em:g037251892:03725_1892-0009","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"736.8,1832.0 1104.6,1824.8 1104.7,1834.4 1612.0,1778.1 1612.0,1751.7 1612.0,1742.3 1600.7,1742.3 1577.3,213.3 1575.4,105.3 1403.3,102.9 1158.8,94.4 1084.3,116.1 1036.1,131.1 595.0,220.6 461.1,253.3 398.4,291.5 272.1,400.1 198.4,452.0 129.7,486.1 14.1,532.6 58.5,573.1 53.8,1869.5 1.0,1911.2 1.0,1912.0 221.3,1912.0 311.1,1845.5 661.2,1912.0 668.5,1912.0 723.6,1912.0 736.8,1832.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764em:g037251892:03725_1892-0009/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1095.0,103.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.05549024670928,42.40705092704411]}},{"type":"Feature","properties":{"resourceCoords":[791.0,1478.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.0581265478226,42.40526965481125]}}]}}]}