{"id":"https://data.mapsnap.org/runs/v2.0/iiif/chronoscope/sanborn03795_003.main.iiif.json","type":"AnnotationPage","@context":["http://www.w3.org/ns/anno.jsonld"],"label":"Milton, Massachusetts | 1911 | mapsnap generated fit (2026-10-18)","creator":{"type":"Software","name":"mapsnap","homepage":"https://mapsnap.org"},"rights":"https://opendatacommons.org/licenses/odbl/1-0/","metadata":[{"label":"generated","value":"2026-10-18"},{"label":"run","value":"corpus-v2"},{"label":"pages","value":"20"},{"label":"placed","value":"12"},{"label":"unplaced","value":"8"},{"label":"fit sources","value":"georef 7, georef-snap 5"},{"label":"key map","value":"georeferenced"},{"label":"split sheets","value":"8 sheet(s) cut into 16 panels"},{"label":"unplaced pages","value":"p11__2 (tier 1, 42.23853,-71.08548 +/-100m); p12__2 (tier 1, 42.24956,-71.07272 +/-100m); p1__1 (tier 1, 42.26185,-71.07926 +/-189m); p2__2 (tier 1, 42.26588,-71.09370 +/-100m); p3__2 (tier 1, 42.26256,-71.09470 +/-134m); p4__2 (tier 1, 42.25651,-71.09299 +/-100m); p5__1 (tier 1, 42.25419,-71.07746 +/-100m); p5__3 (tier 1, 42.25809,-71.08247 +/-100m)"}],"items":[{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764mm:g037951911:03795_1911-0010/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Milton, Massachusetts | 1911 | sanborn03795_003 p10","metadata":[{"label":"streets","value":"9"},{"label":"intersections","value":"4"},{"label":"confidence","value":"0.62"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T21:44:35Z","modified":"2026-10-18T21:44:35Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764mm:g037951911:03795_1911-0010/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764mm:g037951911:03795_1911-0010","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"3.6,475.2 487.5,273.4 492.6,284.8 670.9,153.7 725.8,278.5 765.4,258.8 1257.7,94.8 1259.7,87.6 1540.4,58.1 1462.7,347.8 1450.6,596.8 1539.8,615.0 1578.2,970.3 1491.7,1756.3 1203.8,1832.5 999.7,1753.3 214.9,1784.8 187.7,1631.0 120.9,1579.2 131.9,921.3 59.7,550.4 37.2,557.0 3.6,475.2\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764mm:g037951911:03795_1911-0010/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[28.0,465.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.0419215,42.2560062]}},{"type":"Feature","properties":{"resourceCoords":[323.0,342.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.0411614,42.2562733]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764mm:g037951911:03795_1911-0011__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Milton, Massachusetts | 1911 | sanborn03795_003 p11 [1]","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"12"},{"label":"confidence","value":"0.61"},{"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":"2026-10-18T21:44:35Z","modified":"2026-10-18T21:44:35Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764mm:g037951911:03795_1911-0011__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764mm:g037951911:03795_1911-0011","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"72.0,1768.6 115.6,1766.5 625.2,1814.2 629.8,1808.5 895.0,1893.6 911.0,1873.7 1085.2,1857.0 1232.5,1770.3 1164.6,1694.4 1608.3,1435.0 1406.2,1060.0 1387.4,1006.3 1394.4,968.3 1491.8,803.4 1598.6,726.0 1607.2,741.2 1612.0,700.1 1612.0,691.5 1588.6,685.2 1399.0,331.0 1435.7,211.9 1350.2,306.6 1313.5,242.5 1197.5,276.1 1041.7,221.2 971.5,438.1 903.7,447.7 899.5,456.0 894.9,465.0 811.6,464.4 786.8,464.2 733.3,471.8 607.9,35.1 152.8,29.2 77.3,85.9 79.1,762.0 79.1,762.6 71.8,1150.0 72.2,1504.3 72.0,1768.6\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764mm:g037951911:03795_1911-0011__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[605.0,1165.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.0395574,42.2579717]}},{"type":"Feature","properties":{"resourceCoords":[925.0,1441.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.0384643,42.2577664]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764mm:g037951911:03795_1911-0012__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Milton, Massachusetts | 1911 | sanborn03795_003 p12 [1]","metadata":[{"label":"streets","value":"8"},{"label":"intersections","value":"9"},{"label":"confidence","value":"0.59"},{"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":"2026-10-18T21:44:35Z","modified":"2026-10-18T21:44:35Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764mm:g037951911:03795_1911-0012__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764mm:g037951911:03795_1911-0012","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"887.9,82.1 857.8,110.7 840.3,169.2 779.6,623.2 229.8,569.0 240.9,677.9 58.1,660.5 75.1,670.5 81.0,824.7 32.3,858.4 86.3,946.1 66.1,1113.9 135.4,1135.8 156.0,1779.0 407.3,1879.9 853.0,1829.8 884.8,1763.5 1274.4,1891.7 1568.8,1821.1 1585.4,1439.9 1514.2,1303.2 1604.7,825.5 1572.2,254.7 1517.9,150.5 1373.0,126.6 1270.5,1.0 1269.9,1.0 1216.4,18.7 1218.4,1.0 1074.5,1.0 887.9,82.1\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764mm:g037951911:03795_1911-0012__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1143.0,661.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.03634,42.25894]}},{"type":"Feature","properties":{"resourceCoords":[336.0,1520.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.0353746,42.2568957]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764mm:g037951911:03795_1911-0002__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Milton, Massachusetts | 1911 | sanborn03795_003 p2 [1]","metadata":[{"label":"streets","value":"7"},{"label":"intersections","value":"5"},{"label":"confidence","value":"0.28"},{"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":"2026-10-18T21:44:35Z","modified":"2026-10-18T21:44:35Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764mm:g037951911:03795_1911-0002__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764mm:g037951911:03795_1911-0002","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"674.7,1912.0 760.4,1912.0 762.5,1912.0 773.2,1898.3 801.8,1912.0 1080.3,1912.0 1291.8,1912.0 1564.2,1684.0 1218.1,1289.2 1253.8,1222.1 1440.5,1436.1 1453.2,952.1 1439.0,941.0 1612.0,728.2 1612.0,508.7 1583.2,479.2 1502.7,110.7 1429.1,67.6 820.3,27.1 654.1,369.6 652.8,368.5 651.2,371.8 631.5,352.3 440.4,207.2 439.1,162.4 404.0,127.8 436.8,86.8 435.9,58.8 155.0,44.9 43.4,214.2 110.7,424.1 39.0,782.5 129.9,1858.7 545.2,1862.4 579.2,1894.2 666.8,1890.8 674.7,1912.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764mm:g037951911:03795_1911-0002__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1439.0,941.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.0926277,42.2625947]}},{"type":"Feature","properties":{"resourceCoords":[703.0,1988.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.0959896,42.2619881]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764mm:g037951911:03795_1911-0003__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Milton, Massachusetts | 1911 | sanborn03795_003 p3 [1]","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"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":"2026-10-18T21:44:35Z","modified":"2026-10-18T21:44:35Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764mm:g037951911:03795_1911-0003__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764mm:g037951911:03795_1911-0003","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"659.6,46.5 666.4,143.6 127.0,186.1 123.6,296.6 33.5,352.8 57.4,1746.5 348.4,1873.3 613.2,1888.7 1170.0,1758.2 1208.8,1912.0 1257.1,1912.0 1572.3,1588.6 1595.1,899.5 1598.7,783.5 1600.6,725.0 1391.7,690.2 774.9,767.0 686.0,778.8 686.0,778.8 686.0,603.3 686.0,573.0 686.0,563.5 686.0,436.3 747.2,309.1 792.3,197.3 722.7,131.8 732.1,109.0 659.6,46.5\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764mm:g037951911:03795_1911-0003__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[366.0,1144.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.09671794610728,42.26026748460344]}},{"type":"Feature","properties":{"resourceCoords":[1566.0,1490.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.09372434016946,42.259701017580255]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764mm:g037951911:03795_1911-0004__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Milton, Massachusetts | 1911 | sanborn03795_003 p4 [1]","metadata":[{"label":"streets","value":"13"},{"label":"intersections","value":"14"},{"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":"2026-10-18T21:44:35Z","modified":"2026-10-18T21:44:35Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764mm:g037951911:03795_1911-0004__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764mm:g037951911:03795_1911-0004","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"781.1,1617.8 899.1,1808.6 893.9,1831.9 1522.4,1829.8 1596.3,1337.3 1594.8,477.8 1552.8,154.2 1517.4,91.0 1098.1,68.0 1068.8,37.0 1027.6,48.2 1033.6,27.1 882.8,22.6 789.0,72.3 607.1,97.2 529.5,170.4 526.7,355.9 573.6,530.1 573.8,530.7 298.2,668.0 52.8,648.4 33.4,947.0 1.0,939.7 1.0,957.6 52.4,1036.5 36.8,1184.5 46.5,1185.4 184.2,1409.2 35.9,1367.2 39.5,1408.3 313.9,1485.3 257.6,1669.8 34.8,1815.0 17.7,1817.3 16.9,1827.0 65.3,1862.2 119.3,1906.9 139.7,1912.0 288.4,1912.0 289.4,1903.7 326.4,1597.2 368.1,1500.7 451.6,1524.2 781.1,1617.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764mm:g037951911:03795_1911-0004__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1467.0,781.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.0887637,42.2579225]}},{"type":"Feature","properties":{"resourceCoords":[1467.0,1225.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.0908924,42.2574792]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764mm:g037951911:03795_1911-0005__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Milton, Massachusetts | 1911 | sanborn03795_003 p5 [2]","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.83"},{"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":"2026-10-18T21:44:35Z","modified":"2026-10-18T21:44:35Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764mm:g037951911:03795_1911-0005__2/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764mm:g037951911:03795_1911-0005","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1466.8,1674.8 1474.4,982.3 1532.3,798.4 1480.2,480.5 1549.8,139.5 1462.5,57.3 1224.1,37.5 1081.8,158.8 764.6,80.6 491.4,96.1 371.4,199.0 362.5,390.5 149.6,392.2 63.5,555.3 79.7,698.1 143.1,753.9 128.2,856.3 73.3,824.3 59.5,866.5 113.5,993.7 52.3,1088.0 68.9,1842.0 333.9,1872.8 402.0,1629.8 402.8,1627.2 1013.7,1591.7 1191.2,1775.8 1414.0,1757.8 1466.8,1674.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764mm:g037951911:03795_1911-0005__2/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1431.0,1454.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.08082605325968,42.252616175842135]}},{"type":"Feature","properties":{"resourceCoords":[570.0,1160.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.08154595952264,42.254284424743496]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764mm:g037951911:03795_1911-0006__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Milton, Massachusetts | 1911 | sanborn03795_003 p6 [1]","metadata":[{"label":"streets","value":"3"},{"label":"intersections","value":"2"},{"label":"confidence","value":"0.63"},{"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":"3118.8"},{"label":"split_canvas_h","value":"7652.0"}],"created":"2026-10-18T21:44:35Z","modified":"2026-10-18T21:44:35Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764mm:g037951911:03795_1911-0006__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764mm:g037951911:03795_1911-0006","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"98.0,144.3 106.3,147.5 127.9,1189.3 78.2,1513.3 128.0,1791.8 256.1,1802.0 331.4,1880.2 707.6,1838.5 664.0,1492.4 740.0,242.4 777.5,235.4 629.2,175.9 630.2,158.3 281.0,123.2 281.6,132.2 98.0,144.3\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764mm:g037951911:03795_1911-0006__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[275.9,1139.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.0795536,42.2683262]}},{"type":"Feature","properties":{"resourceCoords":[700.7,1139.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.0792323,42.2675839]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764mm:g037951911:03795_1911-0006__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Milton, Massachusetts | 1911 | sanborn03795_003 p6 [2]","metadata":[{"label":"streets","value":"2"},{"label":"intersections","value":"2"},{"label":"confidence","value":"0.40"},{"label":"confidence_provisional","value":"true"},{"label":"confidence_model","value":"corpus-v2"},{"label":"split_canvas_x","value":"3057.6"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"3394.4"},{"label":"split_canvas_h","value":"7652.0"}],"created":"2026-10-18T21:44:35Z","modified":"2026-10-18T21:44:35Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764mm:g037951911:03795_1911-0006__2/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764mm:g037951911:03795_1911-0006","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1573.0,1754.3 1469.4,927.9 1557.4,211.7 1301.7,69.2 837.8,324.4 832.4,1798.2 1251.5,1753.6 1428.6,1876.0 1573.0,1754.3\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764mm:g037951911:03795_1911-0006__2/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1466.1,403.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.0687679,42.2565039]}},{"type":"Feature","properties":{"resourceCoords":[3072.3,600.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.068849,42.2548695]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764mm:g037951911:03795_1911-0007/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Milton, Massachusetts | 1911 | sanborn03795_003 p7","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.62"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T21:44:35Z","modified":"2026-10-18T21:44:35Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764mm:g037951911:03795_1911-0007/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764mm:g037951911:03795_1911-0007","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"158.5,1830.7 76.7,1866.3 49.2,1820.5 77.9,44.5 553.0,63.4 701.1,135.1 1191.2,191.1 1432.3,111.0 1565.5,145.7 1527.9,784.1 1576.4,1713.2 1400.8,1817.3 1047.5,1870.9 884.9,1833.5 883.2,1817.1 557.0,1835.0 558.9,1843.0 391.8,1880.6 158.5,1830.7\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764mm:g037951911:03795_1911-0007/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[924.0,822.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.07433586332661,42.268479742322235]}},{"type":"Feature","properties":{"resourceCoords":[404.0,357.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.07332657931464,42.26963396082039]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764mm:g037951911:03795_1911-0008/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Milton, Massachusetts | 1911 | sanborn03795_003 p8","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.82"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T21:44:35Z","modified":"2026-10-18T21:44:35Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764mm:g037951911:03795_1911-0008/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764mm:g037951911:03795_1911-0008","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"223.4,1870.4 236.7,1839.4 89.4,1828.3 83.8,1330.4 39.0,1221.9 21.9,845.5 59.5,108.2 148.7,42.0 344.0,15.3 785.8,35.7 1068.2,96.9 1207.1,83.3 1244.5,118.4 1319.5,88.2 1330.9,110.8 1448.9,98.6 1482.3,127.8 1520.5,101.2 1579.2,518.5 1555.5,578.6 1562.7,796.2 1537.3,822.5 1561.8,857.9 1542.1,967.5 1562.4,1097.4 1463.5,1174.8 1561.4,1303.2 1562.6,1782.2 1474.0,1830.7 1376.6,1828.5 1301.0,1876.7 1173.0,1887.1 670.1,1891.7 535.5,1867.5 341.0,1889.0 223.4,1870.4\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764mm:g037951911:03795_1911-0008/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[876.0,357.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.06655844188975,42.266694875475714]}},{"type":"Feature","properties":{"resourceCoords":[331.0,794.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.07010388350503,42.26651418245097]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764mm:g037951911:03795_1911-0009/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Milton, Massachusetts | 1911 | sanborn03795_003 p9","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.59"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T21:44:35Z","modified":"2026-10-18T21:44:35Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764mm:g037951911:03795_1911-0009/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764mm:g037951911:03795_1911-0009","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1534.8,794.9 1544.8,1216.0 1561.7,1601.0 1567.7,1742.0 1338.3,1803.4 1337.7,1790.1 775.4,1802.9 777.0,1897.8 57.8,1835.7 112.6,1640.5 51.7,1540.0 40.6,1128.2 85.2,82.4 478.8,112.0 634.4,18.8 1159.2,9.4 1465.2,89.3 1501.5,59.6 1534.8,794.9\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764mm:g037951911:03795_1911-0009/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[775.0,1802.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.04198601407921,42.25598529001399]}},{"type":"Feature","properties":{"resourceCoords":[347.0,1802.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.04294481392229,42.255667946614736]}}]}}]}