{"id":"https://data.mapsnap.org/runs/v2.0/iiif/chronoscope/sanborn03582_006.main.iiif.json","type":"AnnotationPage","@context":["http://www.w3.org/ns/anno.jsonld"],"label":"Cambridge, Maryland | 1911 | mapsnap generated fit (2026-10-20)","creator":{"type":"Software","name":"mapsnap","homepage":"https://mapsnap.org"},"rights":"https://opendatacommons.org/licenses/odbl/1-0/","metadata":[{"label":"generated","value":"2026-10-20"},{"label":"run","value":"corpus-v2"},{"label":"pages","value":"33"},{"label":"placed","value":"20"},{"label":"unplaced","value":"13"},{"label":"fit sources","value":"georef-snap 14, georef 6"},{"label":"key map","value":"georeferenced"},{"label":"split sheets","value":"10 sheet(s) cut into 25 panels"},{"label":"unplaced pages","value":"p11__3 (tier 1, 38.56685,-76.08184 +/-100m); p14__2 (tier 1, 38.56764,-76.07555 +/-100m); p15__2 (tier 1, 38.56302,-76.07890 +/-100m); p16__2 (tier 1, 38.57080,-76.07257 +/-100m); p18__2 (tier 1, 38.56859,-76.07132 +/-135m); p19__1 (tier 1, 38.56779,-76.07498 +/-147m); p19__2 (tier 1, 38.56794,-76.07499 +/-124m); p19__3 (tier 2, 38.56329,-76.07741 +/-100m); p2__2 (tier 1, 38.57130,-76.07540 +/-100m); p2__3 (tier 1, 38.57018,-76.07489 +/-100m); p4__1 (tier 1, 38.56820,-76.07966 +/-143m); p4__3 (tier 1, 38.56806,-76.07715 +/-118m); p5__2 (tier 1, 38.57853,-76.08058 +/-119m)"}],"items":[{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd384m:g3844m:g3844cm:g3844cm_g035821911:03582_1911-0010/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Cambridge, Maryland | 1911 | sanborn03582_006 p10","metadata":[{"label":"streets","value":"11"},{"label":"intersections","value":"14"},{"label":"confidence","value":"0.99"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-20T00:59:27Z","modified":"2026-10-20T00:59:27Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd384m:g3844m:g3844cm:g3844cm_g035821911:03582_1911-0010/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd384m:g3844m:g3844cm:g3844cm_g035821911:03582_1911-0010","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1139.3,1863.1 775.5,1866.8 631.1,1865.2 490.8,1869.7 381.9,1870.1 366.6,1618.4 306.0,962.0 267.5,410.8 264.0,398.7 245.5,89.6 911.6,90.0 1344.0,80.3 1334.9,746.4 1339.0,963.3 1328.0,1184.6 1317.4,1545.9 1318.9,1625.2 1322.4,1860.9 1139.3,1863.1\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd384m:g3844m:g3844cm:g3844cm_g035821911:03582_1911-0010/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1337.0,620.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-76.0758923,38.5724255]}},{"type":"Feature","properties":{"resourceCoords":[306.0,962.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-76.078216,38.573329]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd384m:g3844m:g3844cm:g3844cm_g035821911:03582_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":"Cambridge, Maryland | 1911 | sanborn03582_006 p11 [1]","metadata":[{"label":"streets","value":"3"},{"label":"intersections","value":"2"},{"label":"confidence","value":"0.30"},{"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":"3390.0"}],"created":"2026-10-20T00:59:27Z","modified":"2026-10-20T00:59:27Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd384m:g3844m:g3844cm:g3844cm_g035821911:03582_1911-0011__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd384m:g3844m:g3844cm:g3844cm_g035821911:03582_1911-0011","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1291.1,94.8 1045.8,93.9 132.8,163.2 198.3,233.2 163.4,560.0 240.6,809.7 750.3,784.2 1366.8,833.6 1369.7,832.5 1291.1,94.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd384m:g3844m:g3844cm:g3844cm_g035821911:03582_1911-0011__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[740.0,107.9],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-76.081848,38.57365]}},{"type":"Feature","properties":{"resourceCoords":[370.0,107.9],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-76.082542,38.574157]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd384m:g3844m:g3844cm:g3844cm_g035821911:03582_1911-0011__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Cambridge, Maryland | 1911 | sanborn03582_006 p11 [2]","metadata":[{"label":"streets","value":"4"},{"label":"intersections","value":"3"},{"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":"3390.0"},{"label":"split_canvas_w","value":"6452.0"},{"label":"split_canvas_h","value":"4262.0"}],"created":"2026-10-20T00:59:27Z","modified":"2026-10-20T00:59:27Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd384m:g3844m:g3844cm:g3844cm_g035821911:03582_1911-0011__2/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd384m:g3844m:g3844cm:g3844cm_g035821911:03582_1911-0011","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1367.7,1687.2 1462.5,1687.0 1469.3,1227.4 1509.3,1224.2 1379.6,1116.8 1283.8,1150.0 1213.0,1049.4 998.4,977.3 970.6,897.5 812.5,1081.1 809.5,1268.2 750.1,1281.8 750.0,1295.1 750.0,1296.5 687.0,1296.5 666.9,1403.5 377.1,1310.9 159.2,1404.5 53.7,1523.3 25.8,1823.1 133.1,1912.0 474.3,1912.0 502.7,1909.8 490.6,1882.8 1280.8,1685.2 1367.7,1687.2\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd384m:g3844m:g3844cm:g3844cm_g035821911:03582_1911-0011__2/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[997.0,1685.1],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-76.0813189,38.5682568]}},{"type":"Feature","properties":{"resourceCoords":[295.0,1685.1],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-76.082466,38.567382]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd384m:g3844m:g3844cm:g3844cm_g035821911:03582_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":"Cambridge, Maryland | 1911 | sanborn03582_006 p12 [1]","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.62"},{"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":"2026-10-20T00:59:27Z","modified":"2026-10-20T00:59:27Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd384m:g3844m:g3844cm:g3844cm_g035821911:03582_1911-0012__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd384m:g3844m:g3844cm:g3844cm_g035821911:03582_1911-0012","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"689.4,1289.8 689.0,1316.2 563.5,1323.2 219.1,1414.6 141.2,1346.8 118.0,1348.1 104.3,1348.9 87.8,1772.0 481.9,1780.6 577.5,1780.9 822.0,1782.9 952.8,1788.1 1383.6,1793.5 1470.9,1797.8 1531.8,1798.7 1530.2,1271.7 1533.0,1132.6 1526.5,560.5 1529.0,306.2 1526.6,232.8 764.4,331.2 830.2,486.6 753.2,766.2 752.2,1273.1 689.4,1289.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd384m:g3844m:g3844cm:g3844cm_g035821911:03582_1911-0012__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[42.0,1781.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-76.08061875469495,38.56875860621313]}},{"type":"Feature","properties":{"resourceCoords":[1511.0,1781.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-76.07807333861706,38.570795075726416]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd384m:g3844m:g3844cm:g3844cm_g035821911:03582_1911-0012__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Cambridge, Maryland | 1911 | sanborn03582_006 p12 [2]","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.17"},{"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":"3132.0"},{"label":"split_canvas_h","value":"5418.8"}],"created":"2026-10-20T00:59:27Z","modified":"2026-10-20T00:59:27Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd384m:g3844m:g3844cm:g3844cm_g035821911:03582_1911-0012__2/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd384m:g3844m:g3844cm:g3844cm_g035821911:03582_1911-0012","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"224.9,89.0 97.8,818.9 47.8,819.8 99.0,1210.7 522.5,1223.1 694.5,981.4 694.8,964.1 696.9,837.0 698.0,766.3 761.2,682.1 782.0,654.4 782.0,439.6 706.4,437.0 703.4,437.0 702.9,437.0 702.9,436.9 703.0,416.2 703.7,285.5 601.7,87.4 251.7,96.0 224.9,89.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd384m:g3844m:g3844cm:g3844cm_g035821911:03582_1911-0012__2/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[182.0,524.9],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-76.07480446487877,38.56797649846715]}},{"type":"Feature","properties":{"resourceCoords":[182.0,90.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-76.07569756842318,38.568080493187324]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd384m:g3844m:g3844cm:g3844cm_g035821911:03582_1911-0013/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Cambridge, Maryland | 1911 | sanborn03582_006 p13","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.92"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-20T00:59:27Z","modified":"2026-10-20T00:59:27Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd384m:g3844m:g3844cm:g3844cm_g035821911:03582_1911-0013/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd384m:g3844m:g3844cm:g3844cm_g035821911:03582_1911-0013","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"759.1,168.4 533.0,1.0 488.4,1.0 509.5,89.6 125.5,177.9 65.8,259.5 40.2,747.9 1.0,748.7 1.0,843.0 106.0,843.6 113.3,1506.0 114.2,1807.8 579.1,1808.3 851.0,1803.7 1062.5,1805.2 1531.9,1812.3 1543.0,844.5 1539.3,491.3 1474.7,440.4 765.4,141.2 759.1,168.4\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd384m:g3844m:g3844cm:g3844cm_g035821911:03582_1911-0013/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1234.0,246.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-76.08140791127407,38.56821719148844]}},{"type":"Feature","properties":{"resourceCoords":[124.0,1803.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-76.07810185937699,38.56569657002585]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd384m:g3844m:g3844cm:g3844cm_g035821911:03582_1911-0014__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Cambridge, Maryland | 1911 | sanborn03582_006 p14 [1]","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":"0.0"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"6452.0"},{"label":"split_canvas_h","value":"7652.0"}],"created":"2026-10-20T00:59:27Z","modified":"2026-10-20T00:59:27Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd384m:g3844m:g3844cm:g3844cm_g035821911:03582_1911-0014__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd384m:g3844m:g3844cm:g3844cm_g035821911:03582_1911-0014","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"679.7,1846.1 958.2,1880.1 1176.8,1809.3 1542.2,1826.8 1523.0,1511.4 1282.0,1421.0 1277.5,1421.0 1277.5,1419.3 1271.5,1417.1 1169.0,1136.8 1275.5,868.6 1572.0,822.8 1522.3,645.4 1543.7,257.1 1612.0,247.8 1612.0,203.6 968.8,95.5 960.3,128.9 651.3,124.9 438.9,125.4 210.9,125.2 169.2,109.9 169.5,125.0 162.3,605.7 160.8,822.3 165.5,1100.7 165.0,1576.7 406.6,1573.6 679.7,1846.1\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd384m:g3844m:g3844cm:g3844cm_g035821911:03582_1911-0014__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[960.0,833.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-76.07597298616871,38.56680805142819]}},{"type":"Feature","properties":{"resourceCoords":[162.0,833.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-76.07783280882163,38.56703308642688]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd384m:g3844m:g3844cm:g3844cm_g035821911:03582_1911-0015__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Cambridge, Maryland | 1911 | sanborn03582_006 p15 [1]","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.87"},{"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":"2026-10-20T00:59:27Z","modified":"2026-10-20T00:59:27Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd384m:g3844m:g3844cm:g3844cm_g035821911:03582_1911-0015__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd384m:g3844m:g3844cm:g3844cm_g035821911:03582_1911-0015","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1612.0,1621.4 1612.0,1535.5 1504.4,1515.0 1517.0,768.5 1566.1,766.9 1590.0,766.0 1577.5,392.4 1592.8,394.4 1329.0,127.1 1093.8,128.3 793.0,127.0 132.8,129.2 131.3,234.9 37.4,234.2 59.5,1867.7 307.1,1838.5 375.2,1468.7 460.6,1413.0 623.7,1396.2 717.8,1448.5 730.6,1448.5 730.7,1455.6 756.9,1470.2 810.5,1786.2 981.0,1869.1 1487.3,1787.5 1518.8,1610.2 1612.0,1621.4\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd384m:g3844m:g3844cm:g3844cm_g035821911:03582_1911-0015__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1492.0,567.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-76.07729400581346,38.56474518147078]}},{"type":"Feature","properties":{"resourceCoords":[1492.0,1546.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-76.07763874320479,38.56291022714417]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd384m:g3844m:g3844cm:g3844cm_g035821911:03582_1911-0016__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Cambridge, Maryland | 1911 | sanborn03582_006 p16 [1]","metadata":[{"label":"streets","value":"4"},{"label":"intersections","value":"3"},{"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":"2026-10-20T00:59:27Z","modified":"2026-10-20T00:59:27Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd384m:g3844m:g3844cm:g3844cm_g035821911:03582_1911-0016__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd384m:g3844m:g3844cm:g3844cm_g035821911:03582_1911-0016","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"345.9,864.7 515.2,990.1 520.5,1294.5 340.4,1295.5 5.9,1297.3 1.0,1373.8 1.0,1389.8 16.1,1396.3 1.0,1452.0 1.0,1903.5 35.5,1877.6 100.2,1829.8 95.9,1912.0 218.3,1912.0 251.5,1912.0 414.1,1729.6 369.7,1669.3 1123.2,1491.3 1175.0,1492.0 1500.3,1492.8 1517.5,1201.8 1509.0,1201.8 1528.4,903.4 1569.2,903.5 1551.2,655.8 1542.1,658.6 1388.2,591.6 1278.1,349.9 1444.7,239.3 1421.7,180.9 1363.2,203.9 1142.2,80.8 914.4,35.5 354.2,60.8 230.8,109.4 252.0,258.6 190.2,282.9 305.3,331.6 245.0,553.6 355.8,553.0 355.8,553.3 355.3,570.1 351.1,699.2 345.9,864.7\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd384m:g3844m:g3844cm:g3844cm_g035821911:03582_1911-0016__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1175.0,902.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-76.070121,38.571346]}},{"type":"Feature","properties":{"resourceCoords":[1175.0,1492.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-76.070655,38.570285]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd384m:g3844m:g3844cm:g3844cm_g035821911:03582_1911-0017/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Cambridge, Maryland | 1911 | sanborn03582_006 p17","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.83"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-20T00:59:27Z","modified":"2026-10-20T00:59:27Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd384m:g3844m:g3844cm:g3844cm_g035821911:03582_1911-0017/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd384m:g3844m:g3844cm:g3844cm_g035821911:03582_1911-0017","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1058.4,135.3 1060.4,1.0 203.7,1.0 195.8,18.0 232.0,200.7 130.5,436.6 251.5,414.3 302.2,610.5 61.1,1216.3 70.8,1589.4 422.1,1726.3 625.6,1744.4 701.6,1689.3 901.3,1701.1 1194.2,1699.6 1466.3,1703.9 1467.5,1637.1 1477.0,1093.7 1478.5,1040.3 1306.8,260.9 1243.9,305.8 1058.4,135.3\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd384m:g3844m:g3844cm:g3844cm_g035821911:03582_1911-0017/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[901.0,1707.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-76.06976504596825,38.56886954348013]}},{"type":"Feature","properties":{"resourceCoords":[1459.0,1707.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-76.06929394478765,38.56984863782261]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd384m:g3844m:g3844cm:g3844cm_g035821911:03582_1911-0018__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Cambridge, Maryland | 1911 | sanborn03582_006 p18 [1]","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.94"},{"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":"2026-10-20T00:59:27Z","modified":"2026-10-20T00:59:27Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd384m:g3844m:g3844cm:g3844cm_g035821911:03582_1911-0018__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd384m:g3844m:g3844cm:g3844cm_g035821911:03582_1911-0018","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"418.1,1890.3 418.9,1879.0 684.8,1806.5 1508.2,1834.2 1573.1,1762.5 1577.4,1018.0 1406.4,976.2 1439.2,901.5 1407.1,901.3 1386.4,876.9 1369.7,857.2 1212.9,757.4 1081.0,537.9 755.7,238.9 766.9,188.1 634.3,185.5 512.2,70.5 148.2,182.0 165.8,438.1 123.7,437.8 102.5,745.9 111.3,746.0 92.4,1046.6 300.9,1047.9 367.9,1048.2 366.7,1321.0 371.5,1614.5 361.9,1814.8 418.1,1890.3\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd384m:g3844m:g3844cm:g3844cm_g035821911:03582_1911-0018__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[990.0,1610.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-76.06839513619175,38.568462269809395]}},{"type":"Feature","properties":{"resourceCoords":[348.0,456.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-76.06882513483862,38.57090944324411]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd384m:g3844m:g3844cm:g3844cm_g035821911:03582_1911-0019__4/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Cambridge, Maryland | 1911 | sanborn03582_006 p19 [4]","metadata":[{"label":"streets","value":"3"},{"label":"intersections","value":"2"},{"label":"confidence","value":"0.53"},{"label":"confidence_provisional","value":"true"},{"label":"confidence_model","value":"corpus-v2"},{"label":"split_canvas_x","value":"4729.6"},{"label":"split_canvas_y","value":"3789.2"},{"label":"split_canvas_w","value":"1722.4"},{"label":"split_canvas_h","value":"3862.8"}],"created":"2026-10-20T00:59:27Z","modified":"2026-10-20T00:59:27Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd384m:g3844m:g3844cm:g3844cm_g035821911:03582_1911-0019__4/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd384m:g3844m:g3844cm:g3844cm_g035821911:03582_1911-0019","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1374.1,949.9 1368.8,949.9 1320.4,949.1 1271.3,1684.0 1376.2,1709.6 1373.0,1794.5 1438.7,1805.8 1540.2,1760.7 1536.3,1281.1 1391.2,1019.8 1392.4,950.2 1374.1,949.9\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd384m:g3844m:g3844cm:g3844cm_g035821911:03582_1911-0019__4/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1530.1,1747.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-76.07698,38.562797]}},{"type":"Feature","properties":{"resourceCoords":[1271.3,1684.1],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-76.077598,38.562965]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd384m:g3844m:g3844cm:g3844cm_g035821911:03582_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":"Cambridge, Maryland | 1911 | sanborn03582_006 p2 [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":"2026-10-20T00:59:27Z","modified":"2026-10-20T00:59:27Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd384m:g3844m:g3844cm:g3844cm_g035821911:03582_1911-0002__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd384m:g3844m:g3844cm:g3844cm_g035821911:03582_1911-0002","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1529.8,1679.2 1553.5,1639.4 1558.2,1631.5 1559.2,1629.7 1612.0,1820.2 1612.0,1539.4 1593.9,1570.1 1571.0,1609.4 1501.1,1444.1 1466.4,1362.0 1429.3,1274.2 1391.7,1185.2 1383.2,1122.7 1353.0,1122.4 1196.4,1121.2 1004.2,1119.6 1008.2,637.8 1296.0,509.1 1356.0,482.3 1462.1,434.9 1373.7,205.8 1367.3,189.3 1262.8,234.2 1231.2,1.0 1101.8,1.0 1038.8,62.6 866.5,60.8 779.7,302.6 779.7,304.5 779.0,304.5 777.7,308.2 504.1,305.2 445.6,81.6 323.1,1.0 256.9,1.0 181.1,725.3 178.0,923.5 164.3,1584.5 166.9,1799.8 759.3,1790.0 889.1,1804.9 942.2,1824.6 1410.0,1636.5 1474.1,1610.7 1491.8,1743.2 1529.8,1679.2\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd384m:g3844m:g3844cm:g3844cm_g035821911:03582_1911-0002__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[180.0,327.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-76.0739639074505,38.573931364809894]}},{"type":"Feature","properties":{"resourceCoords":[180.0,1836.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-76.07650517102759,38.57190184102817]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd384m:g3844m:g3844cm:g3844cm_g035821911:03582_1911-0003/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Cambridge, Maryland | 1911 | sanborn03582_006 p3","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.91"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-20T00:59:27Z","modified":"2026-10-20T00:59:27Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd384m:g3844m:g3844cm:g3844cm_g035821911:03582_1911-0003/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd384m:g3844m:g3844cm:g3844cm_g035821911:03582_1911-0003","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1496.1,1667.4 1215.8,1766.1 1024.1,1836.8 818.2,1912.0 777.5,1912.0 775.5,1912.0 767.3,1890.9 637.8,1557.2 497.2,1149.2 171.3,764.4 109.9,698.8 56.0,660.1 75.7,585.4 181.9,249.7 251.2,45.3 814.2,191.1 933.1,239.2 978.2,271.7 1537.4,208.6 1519.4,338.6 1605.0,256.6 1612.0,249.8 1612.0,1081.2 1507.0,1196.5 1380.0,1336.1 1490.3,1611.1 1496.1,1667.4\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd384m:g3844m:g3844cm:g3844cm_g035821911:03582_1911-0003/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[273.0,69.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-76.07644807433024,38.57190773567159]}},{"type":"Feature","properties":{"resourceCoords":[1492.0,1692.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-76.07575626567998,38.56805364491548]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd384m:g3844m:g3844cm:g3844cm_g035821911:03582_1911-0004__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Cambridge, Maryland | 1911 | sanborn03582_006 p4 [2]","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.94"},{"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":"2026-10-20T00:59:27Z","modified":"2026-10-20T00:59:27Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd384m:g3844m:g3844cm:g3844cm_g035821911:03582_1911-0004__2/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd384m:g3844m:g3844cm:g3844cm_g035821911:03582_1911-0004","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"117.5,1719.0 468.8,1712.4 1431.4,1715.6 1430.5,1678.0 1420.6,1316.5 1425.6,880.7 1246.4,403.9 1210.2,320.7 1172.0,265.6 1040.0,456.3 948.7,577.0 704.5,918.0 525.3,1157.4 408.8,1323.0 117.5,1719.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd384m:g3844m:g3844cm:g3844cm_g035821911:03582_1911-0004__2/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1165.0,284.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-76.07763907565742,38.57108451064136]}},{"type":"Feature","properties":{"resourceCoords":[486.0,1717.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-76.07982606577184,38.568607148163395]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd384m:g3844m:g3844cm:g3844cm_g035821911:03582_1911-0005__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Cambridge, Maryland | 1911 | sanborn03582_006 p5 [1]","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"9"},{"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":"2026-10-20T00:59:27Z","modified":"2026-10-20T00:59:27Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd384m:g3844m:g3844cm:g3844cm_g035821911:03582_1911-0005__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd384m:g3844m:g3844cm:g3844cm_g035821911:03582_1911-0005","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"10.8,1730.3 373.9,1729.2 966.4,1732.0 1213.5,1730.3 1520.2,1733.3 1516.0,1063.0 1512.9,4.0 1504.6,15.6 1373.8,78.2 1171.4,56.5 1008.3,194.9 506.5,185.4 444.0,374.0 630.2,593.4 638.0,672.5 639.0,673.2 639.0,683.5 661.5,915.3 639.0,952.0 639.0,952.0 639.0,952.0 553.3,958.8 588.4,977.4 247.4,986.1 134.9,1081.7 145.1,1469.9 75.4,1490.4 84.8,1695.3 10.8,1730.3\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd384m:g3844m:g3844cm:g3844cm_g035821911:03582_1911-0005__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1516.0,1063.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-76.078437,38.576553]}},{"type":"Feature","properties":{"resourceCoords":[660.0,216.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-76.078681,38.578746]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd384m:g3844m:g3844cm:g3844cm_g035821911:03582_1911-0006/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Cambridge, Maryland | 1911 | sanborn03582_006 p6","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.96"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-20T00:59:27Z","modified":"2026-10-20T00:59:27Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd384m:g3844m:g3844cm:g3844cm_g035821911:03582_1911-0006/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd384m:g3844m:g3844cm:g3844cm_g035821911:03582_1911-0006","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"249.5,1842.9 450.6,1828.7 635.0,1825.2 768.6,1815.3 816.6,1818.4 1053.7,1813.6 1453.4,1811.0 1441.5,1496.8 1426.8,1147.7 1412.8,977.3 1372.0,287.2 1371.5,1.0 1255.7,1.0 1225.0,37.4 203.2,37.4 145.9,127.4 208.0,1178.0 249.5,1842.9\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd384m:g3844m:g3844cm:g3844cm_g035821911:03582_1911-0006/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[198.0,1152.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-76.07841190270058,38.57660039575925]}},{"type":"Feature","properties":{"resourceCoords":[1400.0,301.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-76.07498253519107,38.576211832179354]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd384m:g3844m:g3844cm:g3844cm_g035821911:03582_1911-0007/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Cambridge, Maryland | 1911 | sanborn03582_006 p7","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.97"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-20T00:59:27Z","modified":"2026-10-20T00:59:27Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd384m:g3844m:g3844cm:g3844cm_g035821911:03582_1911-0007/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd384m:g3844m:g3844cm:g3844cm_g035821911:03582_1911-0007","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1392.5,1678.3 956.7,1685.1 285.5,1680.2 265.6,1334.0 249.2,1165.2 198.4,481.0 193.8,196.0 79.7,197.7 174.1,82.2 287.6,52.5 548.8,173.6 1001.6,178.3 1105.4,97.0 1311.3,88.9 1438.7,218.9 1374.8,424.1 1507.2,559.2 1520.9,729.2 1538.0,740.5 1472.4,740.5 1395.6,1477.0 1392.5,1678.3\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd384m:g3844m:g3844cm:g3844cm_g035821911:03582_1911-0007/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[250.0,1332.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-76.07633251722618,38.57507203083153]}},{"type":"Feature","properties":{"resourceCoords":[1391.0,518.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-76.07304955179329,38.57467003594326]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd384m:g3844m:g3844cm:g3844cm_g035821911:03582_1911-0008/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Cambridge, Maryland | 1911 | sanborn03582_006 p8","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.97"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-20T00:59:27Z","modified":"2026-10-20T00:59:27Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd384m:g3844m:g3844cm:g3844cm_g035821911:03582_1911-0008/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd384m:g3844m:g3844cm:g3844cm_g035821911:03582_1911-0008","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"78.6,1077.2 37.7,941.5 186.3,60.8 703.1,23.6 1147.5,170.2 1463.0,84.7 1569.2,339.1 1569.4,347.6 1568.5,703.7 1562.7,1284.7 1563.0,1527.0 1558.4,1827.6 1233.1,1824.8 1004.4,1820.2 897.2,1822.6 391.3,1821.5 391.5,1818.8 104.5,1807.5 78.6,1077.2\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd384m:g3844m:g3844cm:g3844cm_g035821911:03582_1911-0008/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[146.0,942.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-76.08322722785016,38.57465919365277]}},{"type":"Feature","properties":{"resourceCoords":[1540.0,1832.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-76.0794641656742,38.57558249830852]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd384m:g3844m:g3844cm:g3844cm_g035821911:03582_1911-0009/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Cambridge, Maryland | 1911 | sanborn03582_006 p9","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.99"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-20T00:59:27Z","modified":"2026-10-20T00:59:27Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd384m:g3844m:g3844cm:g3844cm_g035821911:03582_1911-0009/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd384m:g3844m:g3844cm:g3844cm_g035821911:03582_1911-0009","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"245.6,1615.4 250.9,1327.3 253.6,1327.5 244.2,820.0 239.6,712.5 239.4,483.1 235.5,156.8 435.0,150.8 617.4,154.8 750.0,150.4 797.4,155.4 1032.0,160.2 1427.4,173.7 1430.2,186.1 1434.2,741.4 1453.8,1403.7 1453.2,1657.2 1107.4,1642.0 869.1,1626.1 690.5,1621.5 564.7,1614.4 469.7,1613.2 301.6,1616.0 245.6,1615.4\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd384m:g3844m:g3844cm:g3844cm_g035821911:03582_1911-0009/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[682.0,1348.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-76.08051096799076,38.573401862154896]}},{"type":"Feature","properties":{"resourceCoords":[241.0,716.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-76.08030988637792,38.57482536346235]}}]}}]}