{"id":"https://data.mapsnap.org/runs/v2.0/iiif/chronoscope/sanborn05379_004.main.iiif.json","type":"AnnotationPage","@context":["http://www.w3.org/ns/anno.jsonld"],"label":"Portsmouth, New-Hampshire | 1904 | 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":"26"},{"label":"placed","value":"19"},{"label":"unplaced","value":"7"},{"label":"fit sources","value":"georef-snap 17, georef 2"},{"label":"key map","value":"georeferenced"},{"label":"split sheets","value":"7 sheet(s) cut into 15 panels"},{"label":"unplaced pages","value":"p10__2 (tier 1, 43.07632,-70.75445 +/-132m); p14__2 (tier 1, 43.07532,-70.75630 +/-102m); p19 (tier 3, 43.08783,-70.76566 +/-396m); p2__2 (tier 2, 43.07087,-70.77017 +/-100m); p2__3 (tier 1, 43.07030,-70.77190 +/-100m); p3__2 (tier 1, 43.07875,-70.76955 +/-102m); p6__1 (tier 1, 43.07798,-70.76094 +/-212m)"}],"items":[{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd374m:g3744m:g3744pm:g3744pm_g053791904:05379_1904-0010__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Portsmouth, New-Hampshire | 1904 | sanborn05379_004 p10 [1]","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.67"},{"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":"2026-10-20T01:25:24Z","modified":"2026-10-20T01:25:24Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd374m:g3744m:g3744pm:g3744pm_g053791904:05379_1904-0010__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd374m:g3744m:g3744pm:g3744pm_g053791904:05379_1904-0010","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"228.8,1604.6 226.4,1797.2 367.6,1801.0 582.9,1824.1 790.8,1811.8 789.9,1804.5 1587.1,1735.5 1392.4,1543.1 1371.0,1210.2 1296.6,1213.9 1091.0,895.1 897.0,880.1 690.0,334.9 261.8,91.8 179.8,71.7 144.7,266.1 9.0,232.3 67.1,271.4 85.2,310.8 128.5,586.3 137.9,848.5 119.8,1046.8 123.1,1327.8 218.7,1321.2 228.8,1604.6\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd374m:g3744m:g3744pm:g3744pm_g053791904:05379_1904-0010__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[141.0,1578.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-70.75426986376878,43.076636628283026]}},{"type":"Feature","properties":{"resourceCoords":[141.0,1312.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-70.7545701040795,43.077081909545996]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd374m:g3744m:g3744pm:g3744pm_g053791904:05379_1904-0011__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Portsmouth, New-Hampshire | 1904 | sanborn05379_004 p11 [1]","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.89"},{"label":"confidence_provisional","value":"true"},{"label":"confidence_model","value":"corpus-v2"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"3814.4"},{"label":"split_canvas_w","value":"6452.0"},{"label":"split_canvas_h","value":"3837.6"}],"created":"2026-10-20T01:25:24Z","modified":"2026-10-20T01:25:24Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd374m:g3744m:g3744pm:g3744pm_g053791904:05379_1904-0011__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd374m:g3744m:g3744pm:g3744pm_g053791904:05379_1904-0011","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"274.5,1912.0 273.3,1908.5 1570.0,1888.7 1596.6,1262.7 1546.3,980.6 57.1,970.2 38.0,1548.0 1.0,1538.3 1.0,1716.9 19.9,1751.2 217.2,1912.0 274.5,1912.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd374m:g3744m:g3744pm:g3744pm_g053791904:05379_1904-0011__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1088.0,1742.1],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-70.7640212778382,43.067192568441314]}},{"type":"Feature","properties":{"resourceCoords":[1088.0,975.6],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-70.76205692634228,43.06763342183729]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd374m:g3744m:g3744pm:g3744pm_g053791904:05379_1904-0011__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Portsmouth, New-Hampshire | 1904 | sanborn05379_004 p11 [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":"3814.4"}],"created":"2026-10-20T01:25:24Z","modified":"2026-10-20T01:25:24Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd374m:g3744m:g3744pm:g3744pm_g053791904:05379_1904-0011__2/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd374m:g3744m:g3744pm:g3744pm_g053791904:05379_1904-0011","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1530.8,1.0 1440.8,1.0 1447.8,67.0 1449.4,94.2 1091.6,91.7 804.3,98.8 646.5,96.9 263.6,101.2 15.3,96.8 30.1,453.4 38.0,732.5 1.0,734.9 1.0,952.6 544.9,952.6 547.2,948.0 1419.3,935.0 1550.5,933.0 1612.0,469.3 1612.0,462.9 1560.5,437.3 1453.7,200.8 1452.0,158.9 1530.8,1.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd374m:g3744m:g3744pm:g3744pm_g053791904:05379_1904-0011__2/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1402.0,712.7],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-70.76595377548055,43.068579910515986]}},{"type":"Feature","properties":{"resourceCoords":[805.0,85.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-70.76583970620383,43.07024183038177]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd374m:g3744m:g3744pm:g3744pm_g053791904:05379_1904-0012/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Portsmouth, New-Hampshire | 1904 | sanborn05379_004 p12","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.98"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-20T01:25:24Z","modified":"2026-10-20T01:25:24Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd374m:g3744m:g3744pm:g3744pm_g053791904:05379_1904-0012/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd374m:g3744m:g3744pm:g3744pm_g053791904:05379_1904-0012","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1576.6,1791.6 1561.3,1626.2 1510.8,626.3 1612.0,467.3 1612.0,359.3 1430.3,355.6 1338.1,329.2 806.5,240.7 659.7,213.6 600.3,187.3 382.5,1.0 315.1,1.0 218.3,397.0 169.8,581.2 141.6,726.1 134.1,844.9 128.0,1261.5 128.0,1424.7 140.0,1801.6 388.9,1809.5 772.8,1810.5 931.0,1814.5 1219.1,1811.5 1577.8,1819.0 1576.6,1791.6\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd374m:g3744m:g3744pm:g3744pm_g053791904:05379_1904-0012/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[715.0,1445.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-70.76557072863463,43.07101518323805]}},{"type":"Feature","properties":{"resourceCoords":[796.0,221.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-70.76312826318942,43.07254371970947]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd374m:g3744m:g3744pm:g3744pm_g053791904:05379_1904-0013/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Portsmouth, New-Hampshire | 1904 | sanborn05379_004 p13","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.89"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-20T01:25:24Z","modified":"2026-10-20T01:25:24Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd374m:g3744m:g3744pm:g3744pm_g053791904:05379_1904-0013/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd374m:g3744m:g3744pm:g3744pm_g053791904:05379_1904-0013","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"90.5,1761.8 153.6,1745.2 410.0,1869.5 473.4,1879.7 620.6,1868.8 1151.2,1820.1 1246.0,1822.2 1420.8,1780.2 1448.4,1881.7 1473.5,1803.4 1583.2,1737.6 1601.6,537.8 1491.3,98.2 1299.4,34.5 1165.8,29.9 1160.6,21.4 1148.2,1.0 1144.4,1.0 1096.9,15.7 1072.3,31.8 649.6,18.9 417.6,4.4 412.6,81.8 237.1,538.8 106.2,448.2 85.7,692.5 80.2,889.5 81.7,1140.4 89.7,1714.9 90.3,1750.3 90.5,1761.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd374m:g3744m:g3744pm:g3744pm_g053791904:05379_1904-0013/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[99.0,465.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-70.76059641168442,43.07472711184823]}},{"type":"Feature","properties":{"resourceCoords":[410.0,23.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-70.75916973674927,43.07462758411509]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd374m:g3744m:g3744pm:g3744pm_g053791904:05379_1904-0014__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Portsmouth, New-Hampshire | 1904 | sanborn05379_004 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":"2026-10-20T01:25:24Z","modified":"2026-10-20T01:25:24Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd374m:g3744m:g3744pm:g3744pm_g053791904:05379_1904-0014__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd374m:g3744m:g3744pm:g3744pm_g053791904:05379_1904-0014","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"846.4,1858.3 888.3,1827.0 911.4,1860.0 917.3,1868.4 1047.0,1864.7 972.7,1843.3 1047.0,1667.7 1047.0,1619.0 1126.8,1448.8 1211.6,1268.0 1257.9,1169.2 1274.1,1130.8 1502.3,1132.0 1559.0,1080.8 1595.7,524.8 1246.1,229.1 1170.0,295.6 1131.4,241.2 1184.7,1.5 1047.2,21.9 826.6,46.5 252.7,113.3 113.6,131.5 157.2,750.0 167.8,956.5 163.2,1088.6 158.1,1408.2 155.7,1890.2 392.2,1890.0 822.4,1876.2 846.4,1858.3\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd374m:g3744m:g3744pm:g3744pm_g053791904:05379_1904-0014__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[890.0,543.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-70.75512264938779,43.074504672224194]}},{"type":"Feature","properties":{"resourceCoords":[176.0,1273.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-70.75764918685958,43.075114397679975]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd374m:g3744m:g3744pm:g3744pm_g053791904:05379_1904-0015/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Portsmouth, New-Hampshire | 1904 | sanborn05379_004 p15","metadata":[{"label":"streets","value":"11"},{"label":"intersections","value":"15"},{"label":"confidence","value":"0.90"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-20T01:25:24Z","modified":"2026-10-20T01:25:24Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd374m:g3744m:g3744pm:g3744pm_g053791904:05379_1904-0015/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd374m:g3744m:g3744pm:g3744pm_g053791904:05379_1904-0015","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1550.5,564.3 1524.0,563.3 1478.6,764.6 1342.8,1263.9 1189.8,1768.8 1051.2,1778.9 829.5,1787.1 315.8,1808.5 252.1,1811.2 112.0,1819.0 86.5,1354.8 274.6,1370.7 288.3,1232.9 326.0,1024.0 328.6,819.8 321.4,820.1 310.0,35.8 1488.8,182.8 1564.6,407.3 1550.5,564.3\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd374m:g3744m:g3744pm:g3744pm_g053791904:05379_1904-0015/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1064.0,914.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-70.751761,43.0754824]}},{"type":"Feature","properties":{"resourceCoords":[112.0,1819.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-70.755049,43.0761764]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd374m:g3744m:g3744pm:g3744pm_g053791904:05379_1904-0016/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Portsmouth, New-Hampshire | 1904 | sanborn05379_004 p16","metadata":[{"label":"streets","value":"15"},{"label":"intersections","value":"27"},{"label":"confidence","value":"0.97"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-20T01:25:24Z","modified":"2026-10-20T01:25:24Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd374m:g3744m:g3744pm:g3744pm_g053791904:05379_1904-0016/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd374m:g3744m:g3744pm:g3744pm_g053791904:05379_1904-0016","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"375.1,1679.5 311.5,1758.2 264.1,1711.1 275.4,1465.5 300.6,938.0 310.3,420.1 305.1,213.6 331.1,208.0 306.4,52.2 1270.5,59.4 1511.7,195.9 1515.2,186.7 1520.5,573.1 1473.8,589.1 1553.6,624.0 1315.6,1485.7 1118.6,1803.3 1004.3,1866.2 766.5,1871.0 770.7,1911.0 375.1,1679.5\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd374m:g3744m:g3744pm:g3744pm_g053791904:05379_1904-0016/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[978.0,939.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-70.7516916,43.0734506]}},{"type":"Feature","properties":{"resourceCoords":[628.0,1341.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-70.7529505,43.0738764]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd374m:g3744m:g3744pm:g3744pm_g053791904:05379_1904-0017/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Portsmouth, New-Hampshire | 1904 | sanborn05379_004 p17","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.97"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-20T01:25:24Z","modified":"2026-10-20T01:25:24Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd374m:g3744m:g3744pm:g3744pm_g053791904:05379_1904-0017/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd374m:g3744m:g3744pm:g3744pm_g053791904:05379_1904-0017","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"859.2,163.6 1.0,151.8 1.0,159.8 94.1,188.6 36.0,517.5 24.1,1747.7 70.4,1854.4 889.1,1742.8 1520.1,1809.1 1609.8,1614.6 1588.5,53.0 1268.8,17.1 899.7,119.1 872.7,78.3 859.2,163.6\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd374m:g3744m:g3744pm:g3744pm_g053791904:05379_1904-0017/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1088.0,684.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-70.74984884001753,43.07158011617282]}},{"type":"Feature","properties":{"resourceCoords":[829.0,271.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-70.75055824713748,43.07235908252072]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd374m:g3744m:g3744pm:g3744pm_g053791904:05379_1904-0018__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Portsmouth, New-Hampshire | 1904 | sanborn05379_004 p18 [1]","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.89"},{"label":"confidence_provisional","value":"true"},{"label":"confidence_model","value":"corpus-v2"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"3774.0"},{"label":"split_canvas_w","value":"6452.0"},{"label":"split_canvas_h","value":"3878.0"}],"created":"2026-10-20T01:25:24Z","modified":"2026-10-20T01:25:24Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd374m:g3744m:g3744pm:g3744pm_g053791904:05379_1904-0018__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd374m:g3744m:g3744pm:g3744pm_g053791904:05379_1904-0018","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"73.6,1826.8 1447.1,1910.2 1539.0,1868.8 1572.2,1354.1 1496.0,1331.2 1438.2,1080.9 1289.2,1095.0 1244.8,1062.5 1224.5,1062.5 1224.2,1047.4 1136.6,983.2 206.2,995.2 51.3,1269.2 38.8,1500.2 98.0,1669.1 73.6,1826.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd374m:g3744m:g3744pm:g3744pm_g053791904:05379_1904-0018__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[219.0,1333.3],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-70.76885223930464,43.079277156226006]}},{"type":"Feature","properties":{"resourceCoords":[680.0,932.5],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-70.76838065857828,43.08040497935127]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd374m:g3744m:g3744pm:g3744pm_g053791904:05379_1904-0018__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Portsmouth, New-Hampshire | 1904 | sanborn05379_004 p18 [2]","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.88"},{"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":"4250.0"}],"created":"2026-10-20T01:25:24Z","modified":"2026-10-20T01:25:24Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd374m:g3744m:g3744pm:g3744pm_g053791904:05379_1904-0018__2/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd374m:g3744m:g3744pm:g3744pm_g053791904:05379_1904-0018","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1540.3,158.1 1452.6,82.0 1424.6,150.9 1088.9,120.5 1065.8,60.6 892.8,28.9 637.0,189.1 392.6,213.1 298.5,187.2 210.8,60.2 99.4,20.8 30.3,70.0 35.1,639.8 156.1,756.4 143.2,855.1 314.8,849.5 300.5,910.8 361.8,925.1 1218.8,941.0 1221.1,943.5 1222.5,943.5 1222.5,945.1 1320.0,1050.6 1529.4,1021.5 1561.6,826.4 1485.1,563.2 1559.0,375.5 1612.0,415.1 1612.0,387.9 1536.7,163.0 1540.3,158.1\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd374m:g3744m:g3744pm:g3744pm_g053791904:05379_1904-0018__2/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[492.0,447.2],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-70.77365681268823,43.07229404989866]}},{"type":"Feature","properties":{"resourceCoords":[802.0,241.1],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-70.77286591446718,43.071860294639045]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd374m:g3744m:g3744pm:g3744pm_g053791904:05379_1904-0002__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Portsmouth, New-Hampshire | 1904 | sanborn05379_004 p2 [1]","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.76"},{"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":"2026-10-20T01:25:24Z","modified":"2026-10-20T01:25:24Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd374m:g3744m:g3744pm:g3744pm_g053791904:05379_1904-0002__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd374m:g3744m:g3744pm:g3744pm_g053791904:05379_1904-0002","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1.0,852.2 1.0,998.7 126.9,1271.8 41.5,1756.2 344.2,1881.9 798.2,1880.8 851.1,1823.8 844.8,1564.0 950.1,1459.8 892.0,1332.0 988.9,1197.5 1449.7,1161.8 1473.2,240.2 1569.0,80.2 1024.2,37.9 1024.2,38.5 1213.8,53.2 1213.3,57.7 998.2,40.2 996.1,134.4 811.8,119.5 500.8,99.6 265.7,89.0 265.9,73.5 50.5,99.8 80.8,157.0 56.8,519.9 1.0,565.7 1.0,569.6 36.4,680.7 30.8,683.3 1.0,852.2\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd374m:g3744m:g3744pm:g3744pm_g053791904:05379_1904-0002__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[262.0,78.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-70.77050683924112,43.071131992302995]}},{"type":"Feature","properties":{"resourceCoords":[310.0,871.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-70.77180383720493,43.06994183586156]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd374m:g3744m:g3744pm:g3744pm_g053791904:05379_1904-0003__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Portsmouth, New-Hampshire | 1904 | sanborn05379_004 p3 [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":"2026-10-20T01:25:24Z","modified":"2026-10-20T01:25:24Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd374m:g3744m:g3744pm:g3744pm_g053791904:05379_1904-0003__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd374m:g3744m:g3744pm:g3744pm_g053791904:05379_1904-0003","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"170.2,1693.6 171.9,1912.0 176.5,1912.0 174.2,1719.6 395.8,1717.1 398.7,1755.6 682.0,1744.3 1043.8,1725.2 1424.8,1703.5 1432.3,1648.0 1536.7,1182.7 1487.5,1170.8 1601.7,689.5 1502.1,678.0 1573.2,287.9 1561.6,157.1 1504.6,113.8 1547.9,56.7 931.2,18.5 812.1,73.2 789.4,558.3 788.5,558.3 788.5,558.7 735.4,558.7 73.4,564.0 44.2,731.5 25.1,743.9 71.0,958.5 55.4,959.8 65.8,1197.7 73.6,1512.8 75.1,1700.0 170.2,1693.6\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd374m:g3744m:g3744pm:g3744pm_g053791904:05379_1904-0003__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[368.0,1688.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-70.76864093527934,43.07050537125478]}},{"type":"Feature","properties":{"resourceCoords":[1417.0,1726.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-70.7665838381736,43.07180474904887]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd374m:g3744m:g3744pm:g3744pm_g053791904:05379_1904-0004/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Portsmouth, New-Hampshire | 1904 | sanborn05379_004 p4","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.97"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-20T01:25:24Z","modified":"2026-10-20T01:25:24Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd374m:g3744m:g3744pm:g3744pm_g053791904:05379_1904-0004/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd374m:g3744m:g3744pm:g3744pm_g053791904:05379_1904-0004","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"125.1,1773.9 521.0,1803.1 521.8,1702.8 1013.1,1765.2 1019.6,1714.9 1493.9,1769.2 1549.9,1770.8 1528.1,1606.8 1478.7,1187.7 1470.3,1067.4 1479.3,918.1 1503.5,726.7 1549.2,303.3 1553.1,267.3 1164.7,16.6 1137.8,1.0 1136.1,1.0 1134.0,239.9 760.1,213.5 632.5,208.8 630.5,182.1 1.0,143.3 1.0,144.1 130.1,250.9 37.6,529.3 35.1,866.1 149.4,1023.0 224.3,1649.3 184.5,1762.2 125.1,1773.9\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd374m:g3744m:g3744pm:g3744pm_g053791904:05379_1904-0004/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[648.0,203.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-70.76475872359491,43.07498701753719]}},{"type":"Feature","properties":{"resourceCoords":[1078.0,1341.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-70.76645014319091,43.07304713402927]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd374m:g3744m:g3744pm:g3744pm_g053791904:05379_1904-0005/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Portsmouth, New-Hampshire | 1904 | sanborn05379_004 p5","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.98"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-20T01:25:24Z","modified":"2026-10-20T01:25:24Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd374m:g3744m:g3744pm:g3744pm_g053791904:05379_1904-0005/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd374m:g3744m:g3744pm:g3744pm_g053791904:05379_1904-0005","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"331.0,1398.8 90.9,1420.5 84.7,1048.0 78.2,921.2 104.6,917.0 88.2,284.6 111.1,250.3 86.6,220.7 128.9,194.6 104.0,154.1 212.6,46.2 690.7,42.3 855.7,152.9 1169.0,105.2 1198.3,58.0 1372.2,339.3 1353.1,366.6 1349.4,425.0 1440.7,658.0 1456.8,712.0 1476.5,851.2 1474.8,954.7 1416.9,1395.9 1600.5,1410.5 1540.5,1653.2 1437.2,1828.4 1388.6,1902.5 1140.8,1872.4 940.5,1859.3 685.1,1851.4 100.2,1837.8 314.7,1431.5 328.8,1403.1 328.7,1401.7 331.0,1398.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd374m:g3744m:g3744pm:g3744pm_g053791904:05379_1904-0005/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[979.0,1359.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-70.76220054768405,43.07519909122112]}},{"type":"Feature","properties":{"resourceCoords":[482.0,989.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-70.76380824538747,43.07529905181358]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd374m:g3744m:g3744pm:g3744pm_g053791904:05379_1904-0006__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Portsmouth, New-Hampshire | 1904 | sanborn05379_004 p6 [2]","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.81"},{"label":"confidence_provisional","value":"true"},{"label":"confidence_model","value":"corpus-v2"},{"label":"split_canvas_x","value":"2052.0"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"4400.0"},{"label":"split_canvas_h","value":"7652.0"}],"created":"2026-10-20T01:25:24Z","modified":"2026-10-20T01:25:24Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd374m:g3744m:g3744pm:g3744pm_g053791904:05379_1904-0006__2/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd374m:g3744m:g3744pm:g3744pm_g053791904:05379_1904-0006","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"541.8,1059.0 691.9,1356.0 670.5,1381.7 661.8,1439.9 733.3,1681.2 744.9,1736.8 752.7,1878.0 798.4,1883.3 1167.6,1886.8 1471.4,1881.2 1481.3,1881.2 1544.8,1222.5 1556.5,1221.2 1459.0,856.2 1468.2,823.9 1385.5,359.0 1368.5,213.4 1354.8,140.6 1325.0,90.5 1224.1,35.5 820.2,28.3 699.2,107.2 637.7,70.3 546.6,598.6 572.3,1018.1 541.8,1059.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd374m:g3744m:g3744pm:g3744pm_g053791904:05379_1904-0006__2/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1422.0,696.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-70.76223477345668,43.07906679294344]}},{"type":"Feature","properties":{"resourceCoords":[779.0,1880.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-70.76173876314321,43.07654547208113]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd374m:g3744m:g3744pm:g3744pm_g053791904:05379_1904-0007/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Portsmouth, New-Hampshire | 1904 | sanborn05379_004 p7","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.66"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-20T01:25:24Z","modified":"2026-10-20T01:25:24Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd374m:g3744m:g3744pm:g3744pm_g053791904:05379_1904-0007/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd374m:g3744m:g3744pm:g3744pm_g053791904:05379_1904-0007","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"91.5,1780.6 270.9,1794.0 615.3,1833.9 715.9,1851.7 741.0,1855.8 1049.2,1912.0 1050.7,1912.0 1214.8,1912.0 1212.2,1872.4 1211.8,1865.0 1340.3,1845.8 1339.7,1837.8 1539.3,1853.1 1510.1,1838.6 1612.0,442.4 1612.0,435.7 1579.5,44.2 73.3,63.1 1.0,20.2 1.0,21.5 27.4,69.8 38.1,141.8 49.6,285.0 113.6,743.7 103.4,775.0 185.7,1136.3 174.2,1137.2 87.9,1780.4 91.5,1780.6\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd374m:g3744m:g3744pm:g3744pm_g053791904:05379_1904-0007/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[85.0,570.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-70.76228729805884,43.07915139890824]}},{"type":"Feature","properties":{"resourceCoords":[740.0,1828.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-70.75885962565127,43.07805334788164]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd374m:g3744m:g3744pm:g3744pm_g053791904:05379_1904-0008/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Portsmouth, New-Hampshire | 1904 | sanborn05379_004 p8","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.96"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-20T01:25:24Z","modified":"2026-10-20T01:25:24Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd374m:g3744m:g3744pm:g3744pm_g053791904:05379_1904-0008/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd374m:g3744m:g3744pm:g3744pm_g053791904:05379_1904-0008","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1578.0,1184.2 1436.6,1657.7 1297.9,1576.7 1219.4,1537.0 1035.2,1455.0 789.4,1423.2 795.6,1605.7 354.4,1598.3 252.2,1608.2 248.5,1563.0 180.0,1205.7 115.4,913.3 112.7,900.1 83.8,721.7 41.8,375.8 35.5,273.4 34.3,256.4 369.3,247.2 432.2,250.8 699.4,238.1 701.6,253.4 1033.5,277.6 1326.4,303.3 1573.5,310.4 1572.9,627.6 1577.1,1105.8 1578.0,1184.2\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd374m:g3744m:g3744pm:g3744pm_g053791904:05379_1904-0008/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1024.0,924.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-70.75930580687476,43.07574095102673]}},{"type":"Feature","properties":{"resourceCoords":[1292.0,924.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-70.7590051041896,43.07527612019127]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd374m:g3744m:g3744pm:g3744pm_g053791904:05379_1904-0009/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Portsmouth, New-Hampshire | 1904 | sanborn05379_004 p9","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.99"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-20T01:25:24Z","modified":"2026-10-20T01:25:24Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd374m:g3744m:g3744pm:g3744pm_g053791904:05379_1904-0009/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd374m:g3744m:g3744pm:g3744pm_g053791904:05379_1904-0009","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"255.3,852.9 259.1,582.8 267.8,519.7 285.4,181.2 294.1,181.2 612.4,188.8 778.6,162.6 769.8,123.2 768.1,115.9 894.1,76.2 892.3,68.3 1095.1,52.0 1582.0,204.4 1535.4,393.2 1404.2,351.5 1458.8,393.6 1474.2,433.3 1499.6,706.5 1492.5,964.6 1462.4,1158.2 1448.2,1434.2 1542.5,1433.7 1534.8,1712.6 1069.2,1742.2 446.9,1745.2 239.4,1742.2 107.5,1728.8 134.5,1480.2 183.9,1187.0 234.9,854.3 255.3,852.9\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd374m:g3744m:g3744pm:g3744pm_g053791904:05379_1904-0009/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1064.0,1747.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-70.75505444501273,43.07616360231338]}},{"type":"Feature","properties":{"resourceCoords":[1454.0,1301.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-70.75475235934235,43.07726540200668]}}]}}]}