{"id":"https://data.mapsnap.org/runs/v2.0/iiif/chronoscope/sanborn00180_007.main.iiif.json","type":"AnnotationPage","@context":["http://www.w3.org/ns/anno.jsonld"],"label":"Tucson, Arizona | 1947 | 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":"116"},{"label":"placed","value":"96"},{"label":"unplaced","value":"20"},{"label":"fit sources","value":"georef 63, georef-snap 32, georef-street 1"},{"label":"key map","value":"georeferenced"},{"label":"split sheets","value":"16 sheet(s) cut into 40 panels"},{"label":"unplaced pages","value":"p16__1 (tier 1, 32.23183,-110.97801 +/-102m); p16__2 (tier 1, 32.23244,-110.97726 +/-268m); p19__1 (tier 1, 32.23018,-110.97800 +/-113m); p21 (tier 1, 32.22383,-110.96301 +/-270m); p22__1 (tier 1, 32.23184,-110.92642 +/-100m); p26__2 (tier 2, 32.22619,-110.97219 +/-166m); p28__1 (tier 1, 32.22715,-110.97383 +/-100m); p2__1 (tier 1, 32.23304,-110.97238 +/-127m); p2__2 (tier 1, 32.22985,-110.97311 +/-260m); p50__1 (tier 1, 32.21165,-110.96230 +/-226m); p50__2 (tier 1, 32.23984,-110.99120 +/-100m); p50__3 (tier 2, 32.21318,-110.96233 +/-100m); p50__4 (tier 1, 32.21401,-110.96205 +/-108m); p53__3 (tier 1, 32.21560,-110.97470 +/-100m); p70__2 (tier 1, 32.20801,-110.96514 +/-100m); p70__3 (tier 1, 32.20967,-110.96271 +/-100m); p71__1 (tier 2, 32.21842,-110.95778 +/-444m); p71__2 (tier 2, 32.21842,-110.95778 +/-444m); p74__3 (tier 1, 32.21823,-110.95502 +/-100m); p81 (tier 2, 32.23221,-110.94209 +/-100m)"}],"items":[{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801947:00180_1947-0001/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Tucson, Arizona | 1947 | sanborn00180_007 p1","metadata":[{"label":"streets","value":"9"},{"label":"intersections","value":"11"},{"label":"confidence","value":"0.28"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T07:38:07Z","modified":"2026-10-18T07:38:07Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801947:00180_1947-0001/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801947:00180_1947-0001","type":"ImageService3","width":1650,"height":2002},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1026.7,1942.3 966.2,1863.8 680.3,1826.5 459.6,1892.1 63.9,1793.4 116.6,1690.3 55.1,1438.7 102.1,1319.1 38.5,1083.0 59.2,622.1 37.3,616.0 219.4,370.4 216.3,344.6 421.4,276.9 423.6,295.9 862.4,275.4 855.0,194.0 1420.2,148.9 1452.0,428.0 1465.9,426.4 1510.0,722.3 1445.8,732.2 1312.6,781.1 1312.8,850.6 1516.8,800.6 1502.7,1258.0 1536.6,1254.9 1501.7,1383.2 1515.0,1381.8 1528.0,1658.5 1481.5,1649.9 1473.0,1828.0 1217.1,1801.7 1186.3,1949.0 1026.7,1942.3\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801947:00180_1947-0001/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1452.0,428.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-110.9745405,32.2239424]}},{"type":"Feature","properties":{"resourceCoords":[855.0,194.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-110.9758139,32.2242107]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801947:00180_1947-0010/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Tucson, Arizona | 1947 | sanborn00180_007 p10","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.96"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T07:38:07Z","modified":"2026-10-18T07:38:07Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801947:00180_1947-0010/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801947:00180_1947-0010","type":"ImageService3","width":1650,"height":2002},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"193.4,1537.9 149.7,1019.5 166.7,1019.0 134.6,284.8 403.0,279.9 802.3,274.1 1136.8,278.7 1482.7,278.6 1521.5,277.9 1530.5,972.5 1519.0,972.8 1499.1,1707.5 1497.5,1707.5 832.9,1718.5 782.2,1725.3 781.1,1634.0 193.4,1537.9\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801947:00180_1947-0010/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[423.0,288.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-110.96781925191412,32.2212041508569]}},{"type":"Feature","properties":{"resourceCoords":[62.0,1726.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-110.96861542317511,32.21859657760382]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801947:00180_1947-0011/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Tucson, Arizona | 1947 | sanborn00180_007 p11","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.96"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T07:38:07Z","modified":"2026-10-18T07:38:07Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801947:00180_1947-0011/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801947:00180_1947-0011","type":"ImageService3","width":1650,"height":2002},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"102.9,1215.2 62.4,320.6 133.5,323.9 131.5,235.3 434.7,248.0 504.9,253.8 672.4,291.2 854.6,300.1 1514.8,307.3 1573.4,306.5 1568.0,725.4 1568.0,959.1 1557.5,1945.8 1198.3,1943.7 1198.2,1952.8 478.4,1929.7 478.2,1938.5 118.6,1932.7 126.2,1215.4 102.9,1215.2\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801947:00180_1947-0011/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[128.0,1224.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-110.97179605871004,32.23421405000771]}},{"type":"Feature","properties":{"resourceCoords":[1555.0,317.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-110.96877895287172,32.23589419410765]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801947:00180_1947-0012/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Tucson, Arizona | 1947 | sanborn00180_007 p12","metadata":[{"label":"streets","value":"8"},{"label":"intersections","value":"15"},{"label":"confidence","value":"0.98"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T07:38:07Z","modified":"2026-10-18T07:38:07Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801947:00180_1947-0012/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801947:00180_1947-0012","type":"ImageService3","width":1650,"height":2002},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"107.8,282.9 791.5,76.3 790.6,109.3 1412.6,242.0 1612.7,284.7 1613.0,300.1 1613.0,301.6 1561.1,301.3 1508.0,301.0 1499.5,942.9 1494.1,1213.0 1544.8,1213.1 1530.3,1933.1 1484.6,1932.3 1125.6,1925.3 819.7,1926.6 413.2,1920.7 52.6,1912.2 65.2,930.7 65.8,698.1 72.0,281.4 107.8,282.9\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801947:00180_1947-0012/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[424.0,1207.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-110.967948,32.2342444]}},{"type":"Feature","properties":{"resourceCoords":[1508.0,301.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-110.965656,32.2359258]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801947:00180_1947-0013/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Tucson, Arizona | 1947 | sanborn00180_007 p13","metadata":[{"label":"streets","value":"8"},{"label":"intersections","value":"14"},{"label":"confidence","value":"0.99"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T07:38:07Z","modified":"2026-10-18T07:38:07Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801947:00180_1947-0013/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801947:00180_1947-0013","type":"ImageService3","width":1650,"height":2002},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"127.3,1948.8 129.2,1948.9 438.4,1952.1 438.5,1938.5 1156.2,1947.8 1156.2,1955.9 1512.5,1957.8 1514.9,1506.3 1525.7,587.5 1519.8,522.0 1522.8,276.2 1521.5,262.1 809.7,212.3 809.9,200.2 1.0,249.3 1.0,258.6 200.4,300.0 200.7,316.9 148.8,316.9 95.8,316.9 90.9,958.9 87.0,1229.0 137.7,1228.8 127.3,1948.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801947:00180_1947-0013/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[87.0,1229.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-110.9656501,32.2342689]}},{"type":"Feature","properties":{"resourceCoords":[1524.0,320.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-110.9625891,32.2359528]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801947:00180_1947-0014/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Tucson, Arizona | 1947 | sanborn00180_007 p14","metadata":[{"label":"streets","value":"5"},{"label":"intersections","value":"8"},{"label":"confidence","value":"0.99"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T07:38:07Z","modified":"2026-10-18T07:38:07Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801947:00180_1947-0014/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801947:00180_1947-0014","type":"ImageService3","width":1650,"height":2002},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1510.0,1935.6 432.6,1923.1 432.5,1930.2 78.9,1929.9 76.3,1481.0 76.9,567.2 70.3,502.2 70.6,257.8 69.8,250.4 779.9,175.0 780.0,202.1 1503.6,195.3 1505.0,311.5 1506.8,1209.5 1510.9,1867.9 1510.0,1923.0 1510.0,1935.6\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801947:00180_1947-0014/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[428.0,303.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-110.9618209,32.2359507]}},{"type":"Feature","properties":{"resourceCoords":[1510.0,1923.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-110.9594788,32.2329944]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801947:00180_1947-0015/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Tucson, Arizona | 1947 | sanborn00180_007 p15","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"12"},{"label":"confidence","value":"0.97"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T07:38:07Z","modified":"2026-10-18T07:38:07Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801947:00180_1947-0015/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801947:00180_1947-0015","type":"ImageService3","width":1650,"height":2002},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1314.5,1804.3 819.8,1802.6 416.6,1797.0 106.5,1803.0 107.7,1747.2 105.8,1080.8 107.0,172.0 185.3,171.9 1074.2,167.8 1447.8,173.9 1494.2,175.2 1457.4,1344.0 1466.5,1344.5 1482.9,1803.0 1477.4,1802.4 1314.5,1804.3\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801947:00180_1947-0015/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1378.0,1072.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-110.9567734,32.2343251]}},{"type":"Feature","properties":{"resourceCoords":[107.0,172.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-110.959495,32.2359382]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801947:00180_1947-0017/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Tucson, Arizona | 1947 | sanborn00180_007 p17","metadata":[{"label":"streets","value":"5"},{"label":"intersections","value":"4"},{"label":"confidence","value":"0.86"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T07:38:07Z","modified":"2026-10-18T07:38:07Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801947:00180_1947-0017/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801947:00180_1947-0017","type":"ImageService3","width":1650,"height":2002},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"921.9,1906.0 921.8,1901.8 402.4,1888.7 17.6,1874.2 48.1,1844.2 106.0,1618.8 18.4,753.2 62.7,39.9 1577.3,80.3 1611.5,1850.6 1580.6,1950.2 1501.8,1978.3 1501.4,1926.5 921.9,1906.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801947:00180_1947-0017/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[404.0,1556.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-110.9819261,32.2327272]}},{"type":"Feature","properties":{"resourceCoords":[931.0,199.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-110.9821526,32.2353837]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801947:00180_1947-0018/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Tucson, Arizona | 1947 | sanborn00180_007 p18","metadata":[{"label":"streets","value":"8"},{"label":"intersections","value":"10"},{"label":"confidence","value":"0.97"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T07:38:07Z","modified":"2026-10-18T07:38:07Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801947:00180_1947-0018/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801947:00180_1947-0018","type":"ImageService3","width":1650,"height":2002},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"15.7,1830.0 87.2,1169.4 40.6,137.2 118.1,62.5 506.8,80.4 1031.5,98.1 1031.4,102.3 1616.8,127.9 1616.8,137.7 1616.7,180.3 1587.2,190.6 1616.2,1413.0 1620.3,1415.0 1617.6,1745.7 1493.8,1958.3 1355.3,1875.5 1329.7,1866.9 1030.0,1868.0 1031.0,1838.8 91.2,1797.7 74.4,1770.8 67.0,1815.0 52.4,1901.2 15.7,1830.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801947:00180_1947-0018/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1030.0,429.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-110.9802878,32.2320205]}},{"type":"Feature","properties":{"resourceCoords":[1030.0,1868.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-110.9789457,32.229675]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801947:00180_1947-0019__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Tucson, Arizona | 1947 | sanborn00180_007 p19 [2]","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.77"},{"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":"6600.0"},{"label":"split_canvas_h","value":"8008.0"}],"created":"2026-10-18T07:38:07Z","modified":"2026-10-18T07:38:07Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801947:00180_1947-0019__2/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801947:00180_1947-0019","type":"ImageService3","width":1650,"height":2002},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"942.3,1901.5 1556.0,1929.8 1558.8,1831.9 1561.3,1741.8 1581.0,1677.2 1619.1,1529.1 1602.8,1524.6 1569.0,1455.3 1569.8,1072.0 1573.3,957.2 1590.8,758.0 1591.8,367.4 1579.7,283.9 1563.1,252.8 1515.3,217.8 1423.9,179.1 1274.2,120.8 1247.7,116.6 953.8,167.3 950.0,138.4 20.9,253.6 1.0,231.1 1.0,362.9 41.1,416.4 51.2,990.8 617.0,1248.5 617.2,1251.7 621.0,1251.8 619.9,1295.8 629.2,1445.1 676.0,1443.3 619.7,1689.4 651.4,1660.0 675.1,1790.5 636.0,1871.8 605.8,1876.9 942.1,1908.1 942.3,1901.5\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801947:00180_1947-0019__2/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[968.0,181.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-110.9789081286223,32.22965824975662]}},{"type":"Feature","properties":{"resourceCoords":[1274.0,144.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-110.97829848298915,32.22987877925221]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801947:00180_1947-0020/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Tucson, Arizona | 1947 | sanborn00180_007 p20","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.72"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T07:38:07Z","modified":"2026-10-18T07:38:07Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801947:00180_1947-0020/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801947:00180_1947-0020","type":"ImageService3","width":1650,"height":2002},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1485.7,1742.5 1061.3,1690.9 1062.3,1672.3 854.4,1703.9 853.2,1729.2 638.5,1935.3 561.5,1899.1 136.1,1967.1 24.5,1917.1 58.4,71.4 574.2,32.2 931.4,70.2 931.7,63.5 1559.1,100.8 1558.4,117.7 1526.8,851.3 1575.9,852.8 1569.6,971.3 1555.5,1086.3 1532.3,1155.6 1491.8,1663.2 1485.7,1742.5\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801947:00180_1947-0020/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[888.0,849.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-110.97752915359895,32.22528089490605]}},{"type":"Feature","properties":{"resourceCoords":[1536.0,1849.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-110.97561070510741,32.223917736977135]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801947:00180_1947-0022__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Tucson, Arizona | 1947 | sanborn00180_007 p22 [2]","metadata":[{"label":"streets","value":"8"},{"label":"intersections","value":"9"},{"label":"confidence","value":"0.92"},{"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":"6600.0"},{"label":"split_canvas_h","value":"8008.0"}],"created":"2026-10-18T07:38:07Z","modified":"2026-10-18T07:38:07Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801947:00180_1947-0022__2/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801947:00180_1947-0022","type":"ImageService3","width":1650,"height":2002},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1528.9,1787.0 1581.7,1195.4 1550.8,1194.8 1547.2,1194.8 1524.6,205.5 1458.8,72.2 1458.5,88.1 145.9,41.2 56.4,150.1 1.0,149.4 1.0,258.1 86.5,444.9 64.8,686.1 162.2,698.8 217.0,719.6 241.0,744.9 274.7,821.2 377.0,1194.0 412.9,1388.6 439.9,1499.0 540.5,1864.7 591.1,1921.9 612.3,1921.8 1033.7,1920.2 1188.8,1916.9 1394.3,1882.6 1517.8,1839.5 1528.9,1787.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801947:00180_1947-0022__2/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[377.0,1194.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-110.9772744,32.2289676]}},{"type":"Feature","properties":{"resourceCoords":[1504.0,1194.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-110.9748247,32.2289952]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801947:00180_1947-0023/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Tucson, Arizona | 1947 | sanborn00180_007 p23","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"7"},{"label":"confidence","value":"0.99"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T07:38:07Z","modified":"2026-10-18T07:38:07Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801947:00180_1947-0023/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801947:00180_1947-0023","type":"ImageService3","width":1650,"height":2002},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"451.2,1822.1 108.1,1877.1 109.2,1923.2 42.9,1789.0 80.5,63.7 294.5,64.8 465.5,61.9 465.2,82.8 1175.2,54.8 1175.2,69.2 1472.7,70.8 1527.6,71.1 1522.0,781.0 1515.1,1885.6 1163.1,1829.0 1163.1,1832.7 804.0,1836.4 804.1,1826.5 451.2,1834.2 451.2,1822.1\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801947:00180_1947-0023/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[453.0,781.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-110.9740993,32.2329071]}},{"type":"Feature","properties":{"resourceCoords":[1522.0,781.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-110.9717919,32.2329332]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801947:00180_1947-0024/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Tucson, Arizona | 1947 | sanborn00180_007 p24","metadata":[{"label":"streets","value":"7"},{"label":"intersections","value":"9"},{"label":"confidence","value":"0.97"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T07:38:07Z","modified":"2026-10-18T07:38:07Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801947:00180_1947-0024/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801947:00180_1947-0024","type":"ImageService3","width":1650,"height":2002},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"49.9,1866.9 46.7,1862.9 105.8,1841.8 116.6,1788.9 165.4,1192.6 134.2,1192.2 130.7,1192.2 99.2,149.8 442.0,92.2 442.1,104.4 795.0,94.0 794.9,104.0 1154.2,97.6 1154.1,94.0 1506.5,147.9 1508.3,807.1 1508.3,851.9 1510.2,1198.8 1510.0,1702.8 1509.1,1883.3 75.5,1863.3 74.9,1866.6 49.9,1866.9\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801947:00180_1947-0024/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[795.0,477.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-110.9733063,32.2303077]}},{"type":"Feature","properties":{"resourceCoords":[1155.0,1195.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-110.9725201,32.2290009]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801947:00180_1947-0025/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Tucson, Arizona | 1947 | sanborn00180_007 p25","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.99"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T07:38:07Z","modified":"2026-10-18T07:38:07Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801947:00180_1947-0025/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801947:00180_1947-0025","type":"ImageService3","width":1650,"height":2002},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"47.9,500.1 215.0,1196.7 261.6,1185.0 287.4,1297.8 305.0,1409.4 301.8,1480.7 400.1,1967.5 928.7,1865.6 864.2,1605.2 1212.0,1570.7 1620.2,1533.6 1616.7,1517.5 1522.1,1080.9 1525.2,849.9 1587.3,831.8 1589.7,43.4 965.1,26.8 965.0,28.0 946.0,28.0 945.8,26.3 887.6,24.8 887.0,28.0 862.0,28.0 861.6,24.1 858.9,24.0 793.5,46.4 586.0,79.9 429.5,82.4 4.5,81.8 1.0,81.8 1.0,159.4 2.0,234.4 1.0,267.6 1.0,305.9 21.1,389.2 47.9,500.1\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801947:00180_1947-0025/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[733.0,1064.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-110.97513268539286,32.22586919318586]}},{"type":"Feature","properties":{"resourceCoords":[866.0,1593.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-110.97482487016292,32.22490933263071]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801947:00180_1947-0026__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Tucson, Arizona | 1947 | sanborn00180_007 p26 [1]","metadata":[{"label":"streets","value":"9"},{"label":"intersections","value":"10"},{"label":"confidence","value":"0.93"},{"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":"6600.0"},{"label":"split_canvas_h","value":"8008.0"}],"created":"2026-10-18T07:38:07Z","modified":"2026-10-18T07:38:07Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801947:00180_1947-0026__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801947:00180_1947-0026","type":"ImageService3","width":1650,"height":2002},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"61.6,940.5 1.0,959.0 1.0,1193.6 99.8,1622.6 426.2,1621.6 777.4,1624.6 774.0,1217.1 1055.7,1054.9 1188.8,1156.6 1633.2,1004.4 1633.0,938.0 1632.6,912.0 1570.3,845.5 1448.0,768.2 1404.0,735.4 1403.1,668.1 1481.5,600.2 1492.3,577.8 1489.5,318.6 1286.8,253.5 1296.8,213.1 1325.6,150.7 1385.5,65.6 1323.0,36.3 1248.7,149.4 1222.5,223.2 1206.2,351.9 1216.2,428.7 1179.3,428.4 794.6,17.9 784.5,18.5 784.2,18.5 783.6,165.5 53.7,155.7 61.6,940.5\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801947:00180_1947-0026__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[429.0,903.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-110.972506,32.2263938]}},{"type":"Feature","properties":{"resourceCoords":[786.0,903.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-110.971733,32.2263974]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801947:00180_1947-0027/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Tucson, Arizona | 1947 | sanborn00180_007 p27","metadata":[{"label":"streets","value":"5"},{"label":"intersections","value":"6"},{"label":"confidence","value":"0.99"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T07:38:07Z","modified":"2026-10-18T07:38:07Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801947:00180_1947-0027/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801947:00180_1947-0027","type":"ImageService3","width":1650,"height":2002},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"73.2,81.5 429.7,83.7 429.8,75.0 1143.5,90.9 1143.5,81.8 1499.6,80.4 1499.1,747.3 1500.0,1203.0 1505.0,1514.0 1503.7,1812.3 1503.0,1918.6 1145.5,1882.7 1145.5,1880.5 789.2,1841.3 789.1,1838.8 425.3,1859.8 425.2,1856.8 75.8,1867.8 75.8,1848.0 74.2,1187.9 73.2,81.5\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801947:00180_1947-0027/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[74.0,1514.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-110.9717711,32.2303218]}},{"type":"Feature","properties":{"resourceCoords":[1505.0,1514.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-110.9686871,32.2303379]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801947:00180_1947-0028__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Tucson, Arizona | 1947 | sanborn00180_007 p28 [2]","metadata":[{"label":"streets","value":"5"},{"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":"6600.0"},{"label":"split_canvas_h","value":"8008.0"}],"created":"2026-10-18T07:38:07Z","modified":"2026-10-18T07:38:07Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801947:00180_1947-0028__2/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801947:00180_1947-0028","type":"ImageService3","width":1650,"height":2002},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"874.5,1867.5 955.0,1953.0 937.9,1963.6 1109.2,1964.0 1119.2,1971.3 1511.1,1980.3 1511.1,1978.6 1511.6,1930.2 1504.7,1399.8 1507.0,1156.0 1503.7,837.1 1507.7,490.5 1509.0,169.9 1150.3,134.8 1150.3,132.5 792.7,94.0 792.7,91.5 427.8,113.5 427.7,110.5 77.2,122.4 77.3,147.5 80.0,496.0 80.9,1002.1 80.8,1035.3 91.3,1034.8 479.8,1447.7 516.9,1448.0 506.7,1370.6 522.9,1240.9 549.2,1166.5 623.9,1052.4 686.9,1081.8 626.6,1167.6 597.7,1230.5 587.7,1271.3 792.1,1336.5 795.4,1597.8 784.6,1620.4 705.6,1689.0 706.8,1756.8 751.0,1789.7 874.5,1867.5\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801947:00180_1947-0028__2/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[80.0,496.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-110.9717535,32.2289978]}},{"type":"Feature","properties":{"resourceCoords":[1506.0,1206.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-110.968684,32.2277171]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801947:00180_1947-0029/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Tucson, Arizona | 1947 | sanborn00180_007 p29","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"10"},{"label":"confidence","value":"0.98"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T07:38:07Z","modified":"2026-10-18T07:38:07Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801947:00180_1947-0029/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801947:00180_1947-0029","type":"ImageService3","width":1650,"height":2002},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"90.8,1516.3 84.7,1205.9 82.5,750.9 80.9,85.1 439.7,88.1 844.1,87.8 1148.3,82.0 1505.6,83.5 1509.7,1693.1 1528.4,1746.9 1529.2,1878.3 1510.2,1962.1 1495.0,1930.9 1158.7,1858.8 1158.8,1850.8 798.4,1859.0 798.4,1869.5 439.2,1852.8 439.2,1858.9 90.2,1867.8 90.4,1814.2 90.8,1516.3\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801947:00180_1947-0029/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[796.0,1516.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-110.9671647,32.2303424]}},{"type":"Feature","properties":{"resourceCoords":[796.0,88.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-110.967174,32.23295]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801947:00180_1947-0003/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Tucson, Arizona | 1947 | sanborn00180_007 p3","metadata":[{"label":"streets","value":"8"},{"label":"intersections","value":"13"},{"label":"confidence","value":"0.93"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T07:38:07Z","modified":"2026-10-18T07:38:07Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801947:00180_1947-0003/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801947:00180_1947-0003","type":"ImageService3","width":1650,"height":2002},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1485.0,1576.0 1485.0,769.0 1471.2,720.9 1495.3,348.6 1147.4,301.0 823.5,260.6 825.1,276.9 417.3,267.3 69.5,262.1 103.6,526.8 132.9,790.8 146.0,789.3 186.8,1069.1 126.1,1078.2 1.0,1123.7 1.0,1189.5 192.9,1143.0 178.2,1575.3 930.1,1509.1 941.0,1629.7 1485.0,1576.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801947:00180_1947-0003/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1485.0,1576.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-110.9714133,32.2228444]}},{"type":"Feature","properties":{"resourceCoords":[1485.0,769.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-110.9716446,32.2243097]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801947:00180_1947-0030/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Tucson, Arizona | 1947 | sanborn00180_007 p30","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"10"},{"label":"confidence","value":"0.96"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T07:38:07Z","modified":"2026-10-18T07:38:07Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801947:00180_1947-0030/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801947:00180_1947-0030","type":"ImageService3","width":1650,"height":2002},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"89.0,107.4 439.8,100.5 439.8,94.4 800.7,113.4 800.7,102.8 1163.1,96.8 1163.0,104.8 1500.5,179.4 1515.6,210.8 1516.8,529.3 1514.6,1456.3 1531.6,1504.0 1531.2,1620.3 1513.8,1677.3 1513.6,1921.0 81.7,1921.0 77.6,1390.4 81.3,1146.4 79.7,827.5 85.5,480.8 89.0,107.4\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801947:00180_1947-0030/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[437.0,1921.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-110.9679031,32.2264067]}},{"type":"Feature","properties":{"resourceCoords":[1156.0,1921.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-110.9663589,32.2264186]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801947:00180_1947-0031/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Tucson, Arizona | 1947 | sanborn00180_007 p31","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"9"},{"label":"confidence","value":"0.99"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T07:38:07Z","modified":"2026-10-18T07:38:07Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801947:00180_1947-0031/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801947:00180_1947-0031","type":"ImageService3","width":1650,"height":2002},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1521.8,1915.8 1161.5,1843.4 1161.4,1840.7 806.5,1850.8 453.5,1839.2 453.5,1832.5 113.5,1872.6 112.6,1748.0 93.9,1694.2 88.0,86.0 135.3,86.0 442.7,85.9 442.6,72.4 1156.0,74.0 1156.1,82.0 1510.3,80.2 1513.8,346.4 1516.2,1237.6 1514.7,1456.7 1518.0,1508.0 1519.2,1778.0 1521.8,1915.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801947:00180_1947-0031/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1518.0,1508.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-110.9625467,32.2303683]}},{"type":"Feature","properties":{"resourceCoords":[88.0,86.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-110.9656423,32.2329622]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801947:00180_1947-0032/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Tucson, Arizona | 1947 | sanborn00180_007 p32","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.97"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T07:38:07Z","modified":"2026-10-18T07:38:07Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801947:00180_1947-0032/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801947:00180_1947-0032","type":"ImageService3","width":1650,"height":2002},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"64.1,1684.0 81.5,1626.9 82.1,1510.4 65.2,1462.7 68.6,534.5 67.9,215.5 87.6,131.3 87.6,124.7 430.4,87.2 430.4,94.0 785.8,110.7 785.9,108.6 1143.4,101.5 1143.5,104.2 1505.7,180.3 1506.1,219.2 1499.2,437.3 1496.7,810.9 1496.3,1186.3 1634.8,1186.9 1635.1,1236.8 1587.1,1236.5 1560.7,1945.0 776.2,1947.3 776.3,1929.0 63.5,1928.0 64.1,1684.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801947:00180_1947-0032/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[786.0,1205.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-110.9640575607542,32.22775006746716]}},{"type":"Feature","properties":{"resourceCoords":[430.0,484.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-110.96483733463826,32.22905145924359]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801947:00180_1947-0033/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Tucson, Arizona | 1947 | sanborn00180_007 p33","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.99"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T07:38:07Z","modified":"2026-10-18T07:38:07Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801947:00180_1947-0033/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801947:00180_1947-0033","type":"ImageService3","width":1650,"height":2002},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"83.7,1786.9 83.1,1515.1 79.9,1463.5 81.9,1242.8 81.5,345.7 78.7,77.7 434.5,79.0 434.6,71.8 1518.7,87.3 1518.7,106.8 1514.3,492.6 1515.1,743.6 1511.9,844.1 1508.2,1517.5 1520.2,1517.6 1527.9,1739.2 1509.1,1768.5 1509.1,1910.5 439.3,1822.1 439.3,1818.1 85.0,1867.5 83.7,1786.9\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801947:00180_1947-0033/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[798.0,1513.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-110.96101250232385,32.23037761331643]}},{"type":"Feature","properties":{"resourceCoords":[1517.0,1513.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-110.95946941282551,32.23038315483469]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801947:00180_1947-0034/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Tucson, Arizona | 1947 | sanborn00180_007 p34","metadata":[{"label":"streets","value":"7"},{"label":"intersections","value":"9"},{"label":"confidence","value":"0.89"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T07:38:07Z","modified":"2026-10-18T07:38:07Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801947:00180_1947-0034/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801947:00180_1947-0034","type":"ImageService3","width":1650,"height":2002},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"79.8,119.7 431.1,72.6 431.1,76.5 1490.7,169.7 1491.4,29.0 1511.1,29.0 1545.6,1200.8 1538.1,1200.6 1546.9,1919.7 1525.7,1919.4 1498.5,1919.1 1497.8,1967.2 1497.2,2001.0 1451.0,2001.0 1451.0,1919.8 136.7,1924.9 162.1,1223.2 209.6,1223.4 209.3,1174.0 72.1,1173.5 72.1,801.8 74.3,431.8 80.9,215.8 79.8,119.7\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801947:00180_1947-0034/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[429.0,484.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-110.9617757,32.2290671]}},{"type":"Feature","properties":{"resourceCoords":[429.0,1199.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-110.961761,32.2277571]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801947:00180_1947-0035/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Tucson, Arizona | 1947 | sanborn00180_007 p35","metadata":[{"label":"streets","value":"5"},{"label":"intersections","value":"7"},{"label":"confidence","value":"0.98"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T07:38:07Z","modified":"2026-10-18T07:38:07Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801947:00180_1947-0035/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801947:00180_1947-0035","type":"ImageService3","width":1650,"height":2002},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1354.3,2001.0 1353.9,1903.5 817.2,1880.6 817.3,1884.2 107.1,1857.0 92.2,1530.5 80.1,1530.6 76.5,856.9 78.7,756.3 75.1,505.2 75.3,119.2 75.0,87.0 383.3,77.5 784.5,78.4 1276.5,74.4 1438.6,70.7 1534.6,78.6 1553.1,79.0 1576.8,1696.2 1592.4,1696.0 1525.4,2001.0 1354.3,2001.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801947:00180_1947-0035/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1349.0,1516.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-110.9567662,32.2303862]}},{"type":"Feature","properties":{"resourceCoords":[75.0,87.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-110.9594788,32.2329944]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801947:00180_1947-0036/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Tucson, Arizona | 1947 | sanborn00180_007 p36","metadata":[{"label":"streets","value":"5"},{"label":"intersections","value":"10"},{"label":"confidence","value":"0.98"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T07:38:07Z","modified":"2026-10-18T07:38:07Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801947:00180_1947-0036/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801947:00180_1947-0036","type":"ImageService3","width":1650,"height":2002},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1504.9,1861.1 1505.0,1920.0 585.9,1920.6 139.6,1917.0 132.9,1916.9 119.9,1193.5 127.5,1193.6 88.6,90.4 796.0,124.8 796.0,121.2 1330.5,149.5 1329.8,246.7 1500.3,248.4 1483.4,321.9 1465.5,321.6 1536.6,1141.5 1578.6,1203.2 1484.4,1203.2 1489.9,1299.2 1506.1,1355.5 1504.0,1668.0 1504.9,1861.1\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801947:00180_1947-0036/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1505.0,1920.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-110.9563711,32.2264598]}},{"type":"Feature","properties":{"resourceCoords":[784.0,1920.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-110.9579233,32.2264549]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801947:00180_1947-0037/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Tucson, Arizona | 1947 | sanborn00180_007 p37","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.91"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T07:38:07Z","modified":"2026-10-18T07:38:07Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801947:00180_1947-0037/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801947:00180_1947-0037","type":"ImageService3","width":1650,"height":2002},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"161.9,159.6 865.1,181.6 1562.3,258.9 1607.8,1053.7 1616.9,1053.8 1610.3,1403.8 1609.7,1664.3 896.0,1677.3 896.6,1632.8 181.0,1684.5 182.6,1495.8 188.8,1185.8 173.4,1129.8 169.2,1034.5 262.7,1035.7 221.8,974.0 161.9,159.6\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801947:00180_1947-0037/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[179.0,1758.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-110.95637347344466,32.22643746576102]}},{"type":"Feature","properties":{"resourceCoords":[1577.0,1758.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-110.95334051347042,32.22648078283777]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801947:00180_1947-0038/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Tucson, Arizona | 1947 | sanborn00180_007 p38","metadata":[{"label":"streets","value":"8"},{"label":"intersections","value":"9"},{"label":"confidence","value":"0.83"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T07:38:07Z","modified":"2026-10-18T07:38:07Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801947:00180_1947-0038/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801947:00180_1947-0038","type":"ImageService3","width":1650,"height":2002},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1537.6,1610.5 1525.7,1610.0 1483.3,1610.1 1462.5,1712.2 1422.8,1868.9 1402.0,1952.5 1147.0,1692.2 183.9,1447.1 60.1,1311.0 65.2,943.8 67.7,694.1 68.6,626.8 69.5,564.8 73.3,281.6 73.9,248.9 75.2,201.3 1485.0,216.1 1475.6,917.2 1538.0,918.4 1537.6,1610.5\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801947:00180_1947-0038/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[425.0,205.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-110.9679031,32.2264067]}},{"type":"Feature","properties":{"resourceCoords":[1125.0,914.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-110.9663463,32.2251239]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801947:00180_1947-0039/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Tucson, Arizona | 1947 | sanborn00180_007 p39","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.97"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T07:38:07Z","modified":"2026-10-18T07:38:07Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801947:00180_1947-0039/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801947:00180_1947-0039","type":"ImageService3","width":1650,"height":2002},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"59.3,1599.7 80.2,1496.1 123.2,1496.0 135.2,1496.3 134.3,794.2 71.0,793.2 79.1,81.9 790.1,87.9 790.0,106.2 1529.6,109.2 1534.6,803.9 1528.6,803.8 1570.5,1528.2 1491.8,1525.5 1488.8,1694.6 1485.9,1917.4 775.2,1841.2 775.1,1847.8 414.3,1860.0 414.2,1867.9 1.9,1829.0 19.3,1758.7 59.3,1599.7\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801947:00180_1947-0039/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1138.0,1510.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-110.96326064686617,32.22386110178096]}},{"type":"Feature","properties":{"resourceCoords":[68.0,1510.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-110.96556087745374,32.22382691941495]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801947:00180_1947-0004/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Tucson, Arizona | 1947 | sanborn00180_007 p4","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.96"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T07:38:07Z","modified":"2026-10-18T07:38:07Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801947:00180_1947-0004/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801947:00180_1947-0004","type":"ImageService3","width":1650,"height":2002},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"162.5,1128.3 142.4,1082.4 117.4,709.2 112.2,300.6 393.9,136.8 527.8,238.2 972.6,83.6 972.2,20.0 1134.2,20.0 1142.6,20.0 1152.6,27.2 1542.5,35.1 1542.5,66.3 1543.8,352.4 1544.1,415.1 1544.5,483.0 1545.5,597.7 1546.6,735.2 1548.3,1106.1 1551.5,1621.5 986.9,1754.5 934.2,1777.8 268.7,1930.5 162.5,1128.3\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801947:00180_1947-0004/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[589.0,281.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-110.97072548501025,32.22585873829802]}},{"type":"Feature","properties":{"resourceCoords":[1534.0,1608.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-110.96868143101315,32.22343617964231]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801947:00180_1947-0040/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Tucson, Arizona | 1947 | sanborn00180_007 p40","metadata":[{"label":"streets","value":"10"},{"label":"intersections","value":"6"},{"label":"confidence","value":"0.94"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T07:38:07Z","modified":"2026-10-18T07:38:07Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801947:00180_1947-0040/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801947:00180_1947-0040","type":"ImageService3","width":1650,"height":2002},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"94.3,1222.9 92.0,1925.4 1158.5,1922.9 1208.8,1889.4 1244.8,1932.3 1514.6,1940.3 1542.1,1641.3 1587.8,1614.4 1527.1,1546.7 1570.1,1515.3 1635.6,1460.6 1635.5,1432.0 1588.5,1406.2 1567.2,1394.8 1529.3,503.1 1498.0,503.0 1498.2,461.4 1499.7,166.0 779.5,94.7 779.4,101.5 414.2,116.7 414.2,124.8 1.0,89.2 1.0,111.8 70.3,182.8 92.0,981.1 108.8,998.0 71.5,1223.0 94.3,1222.9\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801947:00180_1947-0040/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[55.0,1223.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-110.965544,32.2212081]}},{"type":"Feature","properties":{"resourceCoords":[1498.0,503.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-110.9624942,32.2225259]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801947:00180_1947-0041/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Tucson, Arizona | 1947 | sanborn00180_007 p41","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.88"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T07:38:07Z","modified":"2026-10-18T07:38:07Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801947:00180_1947-0041/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801947:00180_1947-0041","type":"ImageService3","width":1650,"height":2002},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"155.7,1510.5 108.3,774.9 114.5,775.0 104.8,69.3 1493.6,66.0 1493.4,149.2 1540.7,150.3 1538.7,253.4 1514.9,283.6 1512.1,880.5 1511.8,1499.0 1508.2,1903.8 1131.7,1904.5 785.8,1902.5 785.9,1888.3 436.6,1857.2 436.6,1872.0 72.3,1909.5 73.8,1680.2 75.7,1508.4 155.7,1510.5\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801947:00180_1947-0041/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[65.0,790.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-110.96253901270411,32.225130037596074]}},{"type":"Feature","properties":{"resourceCoords":[790.0,1517.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-110.96098775194712,32.22384280926665]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801947:00180_1947-0042/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Tucson, Arizona | 1947 | sanborn00180_007 p42","metadata":[{"label":"streets","value":"8"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.80"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T07:38:07Z","modified":"2026-10-18T07:38:07Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801947:00180_1947-0042/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801947:00180_1947-0042","type":"ImageService3","width":1650,"height":2002},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"144.3,1351.0 100.2,471.1 69.3,471.2 69.2,430.1 68.5,141.6 426.5,101.3 426.4,86.8 770.3,114.2 770.2,128.2 1110.5,127.0 1480.9,122.9 1484.0,476.7 1481.4,1043.1 1484.7,1150.5 1547.0,1150.3 1570.4,1908.0 1476.5,1907.5 1476.7,1956.9 671.0,1930.9 181.7,1974.5 182.5,2001.0 87.1,2001.0 121.4,1594.6 166.3,1567.7 105.8,1501.2 148.1,1470.0 212.3,1415.5 212.0,1387.2 165.3,1362.1 144.3,1351.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801947:00180_1947-0042/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-110.9626452,32.2233833]}},{"type":"Feature","properties":{"resourceCoords":[1650.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-110.9590956,32.2233888]}},{"type":"Feature","properties":{"resourceCoords":[1650.0,2002.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-110.9590877,32.2197453]}},{"type":"Feature","properties":{"resourceCoords":[0.0,2002.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-110.9626373,32.2197398]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801947:00180_1947-0043/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Tucson, Arizona | 1947 | sanborn00180_007 p43","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.98"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T07:38:07Z","modified":"2026-10-18T07:38:07Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801947:00180_1947-0043/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801947:00180_1947-0043","type":"ImageService3","width":1650,"height":2002},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"96.2,130.1 97.0,81.3 124.6,81.8 152.8,82.3 602.6,90.3 1529.2,98.8 1522.0,355.8 1519.3,911.8 1584.1,912.5 1562.4,1539.7 1509.9,1539.2 1505.3,1911.8 503.1,1901.1 58.9,1903.0 63.4,1501.9 65.2,889.0 69.5,297.4 93.1,267.6 96.2,130.1\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801947:00180_1947-0043/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[64.0,896.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-110.95947690223254,32.22498390900903]}},{"type":"Feature","properties":{"resourceCoords":[1494.0,896.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-110.95642323664138,32.22501875053073]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801947:00180_1947-0044/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Tucson, Arizona | 1947 | sanborn00180_007 p44","metadata":[{"label":"streets","value":"9"},{"label":"intersections","value":"18"},{"label":"confidence","value":"0.96"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T07:38:07Z","modified":"2026-10-18T07:38:07Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801947:00180_1947-0044/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801947:00180_1947-0044","type":"ImageService3","width":1650,"height":2002},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"482.8,71.9 1485.2,63.7 1499.3,783.4 1507.6,1062.8 1551.7,1062.0 1622.3,1515.3 1610.5,1926.6 1551.0,1971.8 1552.8,2001.0 1511.6,2001.0 1511.0,1892.7 373.7,1938.0 47.6,1929.8 47.0,1880.0 141.7,1879.8 112.7,1116.7 49.8,1117.4 45.8,1009.2 44.3,438.6 38.7,82.1 482.8,71.9\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801947:00180_1947-0044/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[774.0,432.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-110.9578927,32.2225255]}},{"type":"Feature","properties":{"resourceCoords":[47.0,1880.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-110.9594614,32.2199167]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801947:00180_1947-0045/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Tucson, Arizona | 1947 | sanborn00180_007 p45","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.98"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T07:38:07Z","modified":"2026-10-18T07:38:07Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801947:00180_1947-0045/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801947:00180_1947-0045","type":"ImageService3","width":1650,"height":2002},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"775.5,1718.8 366.9,1719.3 100.5,1719.8 116.5,1093.8 51.8,1093.8 49.4,539.0 54.1,282.5 54.0,223.3 54.0,220.3 778.7,158.8 778.6,203.9 1501.9,181.5 1502.4,228.8 1502.9,279.2 1507.8,579.5 1508.7,1415.2 1507.1,1738.4 775.5,1718.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801947:00180_1947-0045/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[756.0,282.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-110.95486864946437,32.226466124951656]}},{"type":"Feature","properties":{"resourceCoords":[31.0,1726.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-110.95640752568949,32.22384583477441]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801947:00180_1947-0046/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Tucson, Arizona | 1947 | sanborn00180_007 p46","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.98"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T07:38:07Z","modified":"2026-10-18T07:38:07Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801947:00180_1947-0046/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801947:00180_1947-0046","type":"ImageService3","width":1650,"height":2002},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"94.8,1445.0 51.2,1445.7 44.0,1169.3 32.4,457.4 31.3,88.9 347.4,86.4 752.4,83.4 1477.9,98.4 1479.2,1166.5 1482.8,1501.6 1634.2,1674.0 1634.2,1689.6 1567.8,1957.9 1272.3,1951.1 1198.3,1884.8 932.5,1929.6 341.4,1864.3 223.3,1916.2 190.6,1887.7 163.2,1893.7 94.8,1445.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801947:00180_1947-0046/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[757.0,1461.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-110.95480981032671,32.221348516880916]}},{"type":"Feature","properties":{"resourceCoords":[43.0,95.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-110.95634553929747,32.22384585950986]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801947:00180_1947-0047/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Tucson, Arizona | 1947 | sanborn00180_007 p47","metadata":[{"label":"streets","value":"7"},{"label":"intersections","value":"8"},{"label":"confidence","value":"0.93"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T07:38:07Z","modified":"2026-10-18T07:38:07Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801947:00180_1947-0047/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801947:00180_1947-0047","type":"ImageService3","width":1650,"height":2002},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"812.9,1887.2 13.0,1937.1 131.0,821.2 107.8,821.0 76.4,230.9 824.9,118.7 824.9,129.5 824.3,155.2 1542.1,113.8 1541.5,149.9 1538.4,460.9 1529.1,834.4 1528.0,1460.0 1524.8,1881.8 1474.7,1881.9 1165.5,1882.8 813.0,1878.0 812.9,1887.2\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801947:00180_1947-0047/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[813.0,1878.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-110.9532797,32.2277744]}},{"type":"Feature","properties":{"resourceCoords":[1528.0,1460.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-110.9523609,32.2264799]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801947:00180_1947-0048/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Tucson, Arizona | 1947 | sanborn00180_007 p48","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.99"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T07:38:07Z","modified":"2026-10-18T07:38:07Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801947:00180_1947-0048/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801947:00180_1947-0048","type":"ImageService3","width":1650,"height":2002},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1161.1,1866.6 331.3,1863.4 33.1,1866.8 35.2,1445.2 34.6,819.7 42.9,446.3 45.2,135.4 341.1,134.7 574.6,137.6 1485.2,144.2 1542.8,144.3 1542.4,829.1 1534.9,829.0 1564.0,1457.0 1476.2,1458.3 1482.0,1869.7 1161.1,1866.6\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801947:00180_1947-0048/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1482.0,800.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-110.9509419614718,32.22385221713158]}},{"type":"Feature","properties":{"resourceCoords":[41.0,1470.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-110.95241424371345,32.2264689366138]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801947:00180_1947-0049/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Tucson, Arizona | 1947 | sanborn00180_007 p49","metadata":[{"label":"streets","value":"8"},{"label":"intersections","value":"15"},{"label":"confidence","value":"0.98"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T07:38:07Z","modified":"2026-10-18T07:38:07Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801947:00180_1947-0049/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801947:00180_1947-0049","type":"ImageService3","width":1650,"height":2002},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1135.5,1850.4 60.4,1842.6 53.5,1429.1 141.9,1427.6 111.0,796.5 118.5,796.5 117.2,108.3 59.4,108.3 61.7,45.9 787.8,51.7 787.8,108.5 1348.4,110.3 1348.5,60.9 1425.7,70.2 1425.9,110.2 1594.6,110.2 1606.3,1684.1 1629.3,1714.5 1472.9,1849.6 1135.5,1850.4\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801947:00180_1947-0049/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[58.0,796.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-110.9510032,32.2238515]}},{"type":"Feature","properties":{"resourceCoords":[780.0,1434.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-110.9523614,32.2225339]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801947:00180_1947-0051/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Tucson, Arizona | 1947 | sanborn00180_007 p51","metadata":[{"label":"streets","value":"12"},{"label":"intersections","value":"35"},{"label":"confidence","value":"0.96"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T07:38:07Z","modified":"2026-10-18T07:38:07Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801947:00180_1947-0051/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801947:00180_1947-0051","type":"ImageService3","width":1650,"height":2002},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1537.7,1086.8 1560.5,917.1 1589.7,917.1 1618.0,917.1 1618.1,866.7 1617.7,866.6 1593.2,151.6 1619.0,152.0 1619.1,91.5 1585.4,94.0 966.3,94.0 623.6,93.0 623.9,14.2 621.2,14.2 589.5,14.0 589.6,42.1 65.3,53.2 28.2,122.6 26.5,367.5 44.5,367.6 72.3,644.2 67.5,644.2 71.1,917.0 63.3,917.0 62.0,1184.3 65.5,1184.4 68.2,1539.2 73.0,1539.2 60.8,1858.9 28.4,1858.3 1.0,1858.2 1.0,1904.0 34.5,1904.1 470.5,1902.9 653.8,1906.2 989.2,1915.7 1218.2,1920.2 1420.1,1925.2 1516.8,1926.0 1632.3,1924.5 1622.9,1881.5 1556.5,1881.5 1537.5,1666.6 1537.7,1086.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801947:00180_1947-0051/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[967.0,917.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-110.9553007,32.2395944]}},{"type":"Feature","properties":{"resourceCoords":[1310.0,917.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-110.9538086,32.239603]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801947:00180_1947-0052/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Tucson, Arizona | 1947 | sanborn00180_007 p52","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.63"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T07:38:07Z","modified":"2026-10-18T07:38:07Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801947:00180_1947-0052/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801947:00180_1947-0052","type":"ImageService3","width":1650,"height":2002},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"83.0,1660.8 96.8,861.1 87.7,860.6 43.1,855.5 39.6,629.9 35.2,629.6 65.1,55.2 378.4,69.8 607.9,78.7 810.2,87.5 907.1,90.0 1023.0,90.7 1059.3,91.7 1319.1,98.0 1432.0,382.9 1347.3,384.2 1560.2,672.9 1582.0,673.5 1624.3,713.0 1625.0,1051.0 1620.8,1526.1 1546.2,1601.7 1535.0,1601.5 1581.7,1945.4 1288.4,1957.0 1288.2,1968.5 386.3,1860.6 43.5,1846.9 90.7,1661.0 83.0,1660.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801947:00180_1947-0052/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1300.0,1606.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-110.95100810540276,32.23037105755989]}},{"type":"Feature","properties":{"resourceCoords":[1013.0,662.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-110.95235694311933,32.23380724846488]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801947:00180_1947-0053__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Tucson, Arizona | 1947 | sanborn00180_007 p53 [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":"6600.0"},{"label":"split_canvas_h","value":"8008.0"}],"created":"2026-10-18T07:38:07Z","modified":"2026-10-18T07:38:07Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801947:00180_1947-0053__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801947:00180_1947-0053","type":"ImageService3","width":1650,"height":2002},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"588.0,421.3 588.0,154.6 577.7,154.2 476.3,68.3 57.2,90.2 33.3,1747.5 60.4,1780.3 338.5,1720.7 391.9,1715.0 390.7,1579.3 950.4,1650.2 954.4,1684.2 1492.1,1666.8 1461.0,1141.6 1417.7,785.0 1410.5,692.5 1392.0,433.9 1132.8,354.6 1111.0,354.9 1097.7,355.1 1058.6,355.8 1001.2,356.6 1002.5,392.9 588.0,421.3\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801947:00180_1947-0053__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1436.0,1111.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-110.97217097305665,32.21698668912055]}},{"type":"Feature","properties":{"resourceCoords":[381.0,1111.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-110.97442315344648,32.21691630208018]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801947:00180_1947-0053__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Tucson, Arizona | 1947 | sanborn00180_007 p53 [2]","metadata":[{"label":"streets","value":"3"},{"label":"intersections","value":"3"},{"label":"confidence","value":"0.07"},{"label":"confidence_provisional","value":"true"},{"label":"confidence_model","value":"corpus-v2"},{"label":"split_canvas_x","value":"2352.0"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"1658.0"},{"label":"split_canvas_h","value":"1685.2"}],"created":"2026-10-18T07:38:07Z","modified":"2026-10-18T07:38:07Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801947:00180_1947-0053__2/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801947:00180_1947-0053","type":"ImageService3","width":1650,"height":2002},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"979.4,143.2 960.8,142.4 961.4,93.5 588.0,102.0 598.4,111.5 608.6,395.1 588.5,384.8 588.1,418.5 608.3,418.7 989.4,382.7 979.4,143.2\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801947:00180_1947-0053__2/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[630.0,81.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-110.9579052,32.2199139]}},{"type":"Feature","properties":{"resourceCoords":[961.5,81.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-110.9563353,32.2199294]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801947:00180_1947-0054/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Tucson, Arizona | 1947 | sanborn00180_007 p54","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.99"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T07:38:07Z","modified":"2026-10-18T07:38:07Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801947:00180_1947-0054/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801947:00180_1947-0054","type":"ImageService3","width":1650,"height":2002},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"307.4,1695.0 364.1,1726.6 822.6,1747.2 1054.5,1753.3 1483.8,1758.0 1461.3,816.7 1432.3,441.5 1420.3,286.0 891.9,298.7 888.3,265.3 339.0,191.0 339.1,324.3 286.6,329.5 12.9,385.7 42.2,421.8 43.2,884.2 92.5,930.5 44.6,1662.3 1.0,1659.7 1.0,1680.2 307.4,1695.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801947:00180_1947-0054/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[946.0,808.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-110.97298620431218,32.214987754362085]}},{"type":"Feature","properties":{"resourceCoords":[1053.0,1738.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-110.97266202691527,32.21328741528854]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801947:00180_1947-0055/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Tucson, Arizona | 1947 | sanborn00180_007 p55","metadata":[{"label":"streets","value":"11"},{"label":"intersections","value":"15"},{"label":"confidence","value":"0.96"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T07:38:07Z","modified":"2026-10-18T07:38:07Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801947:00180_1947-0055/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801947:00180_1947-0055","type":"ImageService3","width":1650,"height":2002},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1432.4,1678.5 921.3,1722.7 574.7,1774.2 484.8,1783.7 204.6,1811.3 169.3,1415.3 139.0,1104.6 127.3,1050.1 142.4,1047.7 100.1,569.4 52.0,570.5 50.0,108.0 753.1,108.5 1462.9,113.6 1460.0,468.0 1459.3,855.9 1555.5,841.8 1456.0,1675.8 1432.4,1678.5\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801947:00180_1947-0055/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1460.0,468.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-110.9693555,32.2159579]}},{"type":"Feature","properties":{"resourceCoords":[50.0,108.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-110.9685977,32.2185773]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801947:00180_1947-0056/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Tucson, Arizona | 1947 | sanborn00180_007 p56","metadata":[{"label":"streets","value":"9"},{"label":"intersections","value":"12"},{"label":"confidence","value":"0.99"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T07:38:07Z","modified":"2026-10-18T07:38:07Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801947:00180_1947-0056/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801947:00180_1947-0056","type":"ImageService3","width":1650,"height":2002},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1474.8,1621.3 1489.9,1664.0 548.0,1716.1 173.2,1756.9 41.6,1771.2 145.5,930.0 48.4,943.8 50.7,552.4 55.0,194.7 765.0,198.0 1476.8,205.9 1471.8,724.2 1472.2,916.5 1537.8,916.5 1529.2,1621.5 1474.8,1621.3\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801947:00180_1947-0056/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[765.0,842.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-110.9699623,32.2146388]}},{"type":"Feature","properties":{"resourceCoords":[765.0,198.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-110.9685646,32.2146554]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801947:00180_1947-0057/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Tucson, Arizona | 1947 | sanborn00180_007 p57","metadata":[{"label":"streets","value":"8"},{"label":"intersections","value":"14"},{"label":"confidence","value":"0.99"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T07:38:07Z","modified":"2026-10-18T07:38:07Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801947:00180_1947-0057/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801947:00180_1947-0057","type":"ImageService3","width":1650,"height":2002},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"56.3,65.0 768.0,197.7 767.0,289.2 817.9,283.5 1483.6,287.4 1494.9,287.6 1517.5,291.9 1524.4,1736.4 1474.6,1735.1 760.0,1728.0 760.0,1596.2 400.1,1649.6 399.8,1729.0 40.1,1727.9 49.4,1002.8 54.0,284.5 56.3,65.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801947:00180_1947-0057/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[760.0,1009.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-110.96706,32.2172832]}},{"type":"Feature","properties":{"resourceCoords":[760.0,1728.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-110.967036,32.2159792]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801947:00180_1947-0058/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Tucson, Arizona | 1947 | sanborn00180_007 p58","metadata":[{"label":"streets","value":"8"},{"label":"intersections","value":"15"},{"label":"confidence","value":"0.99"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T07:38:07Z","modified":"2026-10-18T07:38:07Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801947:00180_1947-0058/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801947:00180_1947-0058","type":"ImageService3","width":1650,"height":2002},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"63.7,1724.2 62.1,1008.7 56.0,295.1 413.0,291.0 412.2,212.1 768.7,153.8 770.6,284.6 1480.2,281.2 1528.7,281.8 1537.7,1007.5 1539.4,1007.5 1542.2,1719.0 1538.8,1719.0 1488.9,1719.0 1130.9,1717.2 776.9,1725.8 414.2,1723.7 115.2,1724.2 63.7,1724.2\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801947:00180_1947-0058/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1127.0,1003.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-110.9662653,32.2146674]}},{"type":"Feature","properties":{"resourceCoords":[413.0,291.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-110.9678082,32.2159671]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801947:00180_1947-0059/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Tucson, Arizona | 1947 | sanborn00180_007 p59","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"6"},{"label":"confidence","value":"0.86"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T07:38:07Z","modified":"2026-10-18T07:38:07Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801947:00180_1947-0059/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801947:00180_1947-0059","type":"ImageService3","width":1650,"height":2002},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"126.2,804.5 104.0,800.3 94.5,800.2 125.6,80.1 1171.2,77.7 1220.0,45.1 1255.0,86.8 1516.7,94.5 1506.6,204.6 1600.4,205.3 1622.6,1115.9 1618.0,1855.0 1618.5,1862.8 1601.3,1917.5 1009.8,1878.3 1009.8,1881.0 443.6,1846.6 443.7,1838.1 137.4,1823.2 126.2,804.5\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801947:00180_1947-0059/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[447.0,1520.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-110.9647431,32.2172852]}},{"type":"Feature","properties":{"resourceCoords":[805.0,114.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-110.963988,32.2198957]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801947:00180_1947-0005__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Tucson, Arizona | 1947 | sanborn00180_007 p5 [1]","metadata":[{"label":"streets","value":"5"},{"label":"intersections","value":"6"},{"label":"confidence","value":"0.16"},{"label":"confidence_provisional","value":"true"},{"label":"confidence_model","value":"corpus-v2"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"3891.6"},{"label":"split_canvas_w","value":"6600.0"},{"label":"split_canvas_h","value":"4116.4"}],"created":"2026-10-18T07:38:07Z","modified":"2026-10-18T07:38:07Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801947:00180_1947-0005__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801947:00180_1947-0005","type":"ImageService3","width":1650,"height":2002},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"96.4,1560.3 95.2,1919.7 213.8,1946.4 188.5,1835.5 1009.0,1680.7 997.2,1772.1 1616.7,1665.2 1607.3,1623.2 1598.2,1580.7 1510.0,1145.8 1134.1,1216.6 1009.4,1242.3 1007.2,1234.2 209.7,1251.6 235.5,1413.5 1.0,1437.8 1.0,1576.2 96.4,1560.3\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801947:00180_1947-0005__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1019.0,1607.3],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-110.972424,32.2210669]}},{"type":"Feature","properties":{"resourceCoords":[1510.0,1145.8],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-110.9712569,32.2218628]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801947:00180_1947-0005__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Tucson, Arizona | 1947 | sanborn00180_007 p5 [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":"6600.0"},{"label":"split_canvas_h","value":"3891.6"}],"created":"2026-10-18T07:38:07Z","modified":"2026-10-18T07:38:07Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801947:00180_1947-0005__2/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801947:00180_1947-0005","type":"ImageService3","width":1650,"height":2002},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"219.8,664.5 976.0,789.4 976.6,798.0 1106.0,795.6 1494.7,795.3 1481.4,260.4 944.4,326.3 930.8,207.3 220.2,286.9 190.0,407.6 202.4,406.0 219.8,664.5\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801947:00180_1947-0005__2/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[976.0,799.9],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-110.9723841380857,32.22174979736908]}},{"type":"Feature","properties":{"resourceCoords":[1478.0,254.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-110.97142217582231,32.22285559855599]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801947:00180_1947-0060/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Tucson, Arizona | 1947 | sanborn00180_007 p60","metadata":[{"label":"streets","value":"9"},{"label":"intersections","value":"11"},{"label":"confidence","value":"0.99"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T07:38:07Z","modified":"2026-10-18T07:38:07Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801947:00180_1947-0060/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801947:00180_1947-0060","type":"ImageService3","width":1650,"height":2002},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1607.7,1967.3 1606.0,1922.3 1121.0,1926.0 1118.3,1926.0 768.9,1930.5 409.5,1940.0 152.4,1938.6 116.5,1938.8 108.9,1230.5 107.2,1230.6 93.3,508.2 94.2,508.2 83.7,109.0 393.1,119.3 393.1,127.9 965.0,153.8 965.0,151.1 1562.6,181.4 1599.0,58.9 1629.5,821.8 1628.8,1924.3 1607.7,1967.3\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801947:00180_1947-0060/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1121.0,1926.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-110.9631887,32.2133721]}},{"type":"Feature","properties":{"resourceCoords":[45.0,508.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-110.9655039,32.2159865]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801947:00180_1947-0061/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Tucson, Arizona | 1947 | sanborn00180_007 p61","metadata":[{"label":"streets","value":"7"},{"label":"intersections","value":"11"},{"label":"confidence","value":"0.76"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T07:38:07Z","modified":"2026-10-18T07:38:07Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801947:00180_1947-0061/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801947:00180_1947-0061","type":"ImageService3","width":1650,"height":2002},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"597.7,1853.0 1321.8,1854.2 1319.7,2001.0 1374.4,2001.0 1374.2,1915.8 1374.0,1903.3 1373.2,1854.2 1375.4,1553.2 1348.0,1520.0 1397.8,1520.8 1406.6,1520.9 1485.0,795.4 1515.5,753.9 1544.3,657.5 1546.9,566.1 1537.3,89.5 1226.8,87.7 1225.9,67.0 131.3,49.6 49.8,93.8 59.8,1743.9 1.0,1748.7 1.0,1790.6 594.7,1862.6 597.7,1853.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801947:00180_1947-0061/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[643.0,799.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-110.9762086,32.212006]}},{"type":"Feature","properties":{"resourceCoords":[1348.0,1520.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-110.974685,32.2106953]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801947:00180_1947-0062/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Tucson, Arizona | 1947 | sanborn00180_007 p62","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.76"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T07:38:07Z","modified":"2026-10-18T07:38:07Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801947:00180_1947-0062/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801947:00180_1947-0062","type":"ImageService3","width":1650,"height":2002},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"123.1,1939.1 28.0,1035.8 35.7,147.2 57.8,44.4 174.7,34.7 174.8,76.1 765.2,146.3 768.1,136.7 1486.8,136.1 1485.1,281.8 1539.4,281.7 1539.7,339.8 1540.4,662.5 1546.4,881.9 1544.9,1228.2 1556.3,1851.4 1554.5,1858.6 1528.6,1934.5 1229.9,1933.7 1230.0,1967.8 123.1,1939.1\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801947:00180_1947-0062/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[427.0,1224.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-110.97703929855186,32.208086697872034]}},{"type":"Feature","properties":{"resourceCoords":[637.0,505.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-110.9765840528441,32.20940762857066]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801947:00180_1947-0063/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Tucson, Arizona | 1947 | sanborn00180_007 p63","metadata":[{"label":"streets","value":"8"},{"label":"intersections","value":"19"},{"label":"confidence","value":"0.99"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T07:38:07Z","modified":"2026-10-18T07:38:07Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801947:00180_1947-0063/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801947:00180_1947-0063","type":"ImageService3","width":1650,"height":2002},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"88.8,1845.9 93.3,1547.0 66.3,1513.8 115.8,1515.0 124.5,1515.2 207.8,795.3 238.4,754.4 267.7,658.8 271.0,568.1 265.1,94.8 323.1,124.4 783.0,129.0 1015.5,127.1 1445.6,116.8 1488.2,101.5 1487.8,443.7 1487.4,800.3 1530.9,800.4 1542.2,1512.7 1486.0,1512.0 1485.9,1877.4 1485.9,1903.3 1124.8,1867.3 1124.8,1873.0 89.0,1874.0 88.8,1845.9\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801947:00180_1947-0063/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[776.0,1512.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-110.9731452,32.2107123]}},{"type":"Feature","properties":{"resourceCoords":[1486.0,1512.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-110.9716047,32.210726]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801947:00180_1947-0064/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Tucson, Arizona | 1947 | sanborn00180_007 p64","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"7"},{"label":"confidence","value":"0.62"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T07:38:07Z","modified":"2026-10-18T07:38:07Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801947:00180_1947-0064/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801947:00180_1947-0064","type":"ImageService3","width":1650,"height":2002},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"81.3,1857.3 83.1,1850.1 78.6,1226.5 84.0,880.0 80.3,660.4 83.2,337.6 84.1,195.0 84.0,182.5 83.9,161.8 1119.6,161.9 1119.5,156.2 1480.7,192.6 1480.5,322.8 1480.0,526.0 1526.5,526.1 1532.1,1234.2 1554.0,1234.2 1527.7,1939.5 1469.3,1939.4 1104.1,1933.0 1105.5,1855.9 64.5,1904.6 81.3,1857.3\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801947:00180_1947-0064/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[762.0,1932.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-110.9731119,32.2067991]}},{"type":"Feature","properties":{"resourceCoords":[1480.0,526.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-110.9715891,32.2093955]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801947:00180_1947-0065/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Tucson, Arizona | 1947 | sanborn00180_007 p65","metadata":[{"label":"streets","value":"9"},{"label":"intersections","value":"12"},{"label":"confidence","value":"0.99"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T07:38:07Z","modified":"2026-10-18T07:38:07Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801947:00180_1947-0065/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801947:00180_1947-0065","type":"ImageService3","width":1650,"height":2002},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"64.2,1496.0 120.6,1497.0 111.5,782.1 67.8,781.9 69.5,424.0 70.8,135.2 778.5,143.8 778.5,77.9 971.5,77.5 1491.9,82.3 1531.0,82.7 1541.5,798.5 1539.5,798.5 1532.2,1509.8 1479.5,1509.5 1477.6,1837.6 1477.0,1932.9 1132.2,1861.9 1132.5,1845.6 773.8,1853.1 774.0,1869.0 62.8,1862.7 64.2,1496.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801947:00180_1947-0065/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[421.0,790.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-110.9708542,32.2120266]}},{"type":"Feature","properties":{"resourceCoords":[774.0,1869.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-110.9700588,32.2100617]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801947:00180_1947-0066/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Tucson, Arizona | 1947 | sanborn00180_007 p66","metadata":[{"label":"streets","value":"8"},{"label":"intersections","value":"15"},{"label":"confidence","value":"0.99"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T07:38:07Z","modified":"2026-10-18T07:38:07Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801947:00180_1947-0066/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801947:00180_1947-0066","type":"ImageService3","width":1650,"height":2002},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"111.9,450.6 65.0,450.7 64.4,245.8 63.6,88.5 778.0,89.0 777.7,73.0 1137.8,62.6 1137.8,79.0 1484.7,147.5 1484.7,152.0 1484.6,262.0 1513.9,317.8 1514.0,445.6 1539.8,445.6 1545.8,1159.3 1535.8,1854.7 1494.4,1854.7 1127.2,1859.2 775.5,1872.3 425.2,1874.0 121.3,1875.2 143.8,1164.2 121.7,1164.3 111.9,450.6\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801947:00180_1947-0066/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[778.0,1160.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-110.9700456,32.208111]}},{"type":"Feature","properties":{"resourceCoords":[778.0,89.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-110.9700588,32.2100617]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801947:00180_1947-0067/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Tucson, Arizona | 1947 | sanborn00180_007 p67","metadata":[{"label":"streets","value":"8"},{"label":"intersections","value":"14"},{"label":"confidence","value":"0.97"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T07:38:07Z","modified":"2026-10-18T07:38:07Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801947:00180_1947-0067/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801947:00180_1947-0067","type":"ImageService3","width":1650,"height":2002},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1485.3,1949.0 1128.8,1850.9 417.2,1862.8 417.4,1870.4 60.2,1896.8 60.0,1858.8 58.1,1531.2 110.7,1530.9 109.9,820.7 111.8,820.7 93.2,106.1 105.4,106.2 403.6,106.1 765.1,108.8 1118.2,100.8 1475.1,103.1 1482.0,808.0 1495.5,807.8 1569.9,1528.4 1485.3,1528.6 1485.4,1829.5 1485.3,1949.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801947:00180_1947-0067/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[772.0,808.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-110.9670018,32.2120653]}},{"type":"Feature","properties":{"resourceCoords":[1482.0,808.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-110.9654642,32.2120683]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801947:00180_1947-0068/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Tucson, Arizona | 1947 | sanborn00180_007 p68","metadata":[{"label":"streets","value":"7"},{"label":"intersections","value":"11"},{"label":"confidence","value":"0.97"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T07:38:07Z","modified":"2026-10-18T07:38:07Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801947:00180_1947-0068/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801947:00180_1947-0068","type":"ImageService3","width":1650,"height":2002},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"754.5,1903.2 398.6,1884.7 89.5,1876.4 81.2,1876.3 101.4,1177.9 105.8,461.1 79.8,460.7 81.6,332.4 53.0,275.9 54.6,165.4 55.4,103.0 416.8,82.9 416.7,75.2 1135.9,76.0 1494.4,181.6 1488.9,481.4 1545.1,482.1 1558.5,1198.4 1542.0,1198.5 1598.0,1325.7 1598.3,1326.2 1617.8,1370.5 1592.2,1958.8 998.7,1864.9 894.1,1907.0 754.5,1903.2\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801947:00180_1947-0068/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[761.0,1187.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-110.9669791,32.2081281]}},{"type":"Feature","properties":{"resourceCoords":[1127.0,476.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-110.9662257,32.2094305]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801947:00180_1947-0069/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Tucson, Arizona | 1947 | sanborn00180_007 p69","metadata":[{"label":"streets","value":"8"},{"label":"intersections","value":"13"},{"label":"confidence","value":"0.99"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T07:38:07Z","modified":"2026-10-18T07:38:07Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801947:00180_1947-0069/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801947:00180_1947-0069","type":"ImageService3","width":1650,"height":2002},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"63.4,1804.0 68.3,1504.7 152.4,1505.9 90.4,787.9 77.0,787.9 81.9,86.5 131.3,87.5 170.4,88.2 426.6,96.0 784.8,95.6 1135.7,100.0 1619.0,108.5 1619.0,112.8 1619.5,153.3 1588.4,212.7 1600.4,1935.3 1116.2,1826.5 411.3,1850.6 411.5,1832.5 62.9,1833.4 63.4,1804.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801947:00180_1947-0069/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[774.0,795.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-110.963947,32.2120796]}},{"type":"Feature","properties":{"resourceCoords":[415.0,1510.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-110.9646986,32.2107504]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801947:00180_1947-0006__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Tucson, Arizona | 1947 | sanborn00180_007 p6 [1]","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.93"},{"label":"confidence_provisional","value":"true"},{"label":"confidence_model","value":"corpus-v2"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"3905.6"},{"label":"split_canvas_w","value":"6600.0"},{"label":"split_canvas_h","value":"4102.4"}],"created":"2026-10-18T07:38:07Z","modified":"2026-10-18T07:38:07Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801947:00180_1947-0006__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801947:00180_1947-0006","type":"ImageService3","width":1650,"height":2002},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1422.7,1714.9 1428.1,1662.4 1426.8,1625.7 1444.8,1214.9 936.0,1226.2 201.8,1237.0 235.2,1701.4 510.2,1686.2 894.2,1655.7 898.8,1694.5 899.7,1702.6 1420.3,1771.7 1422.7,1714.9\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801947:00180_1947-0006__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[904.0,1664.1],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-110.96972356979937,32.221162409348985]}},{"type":"Feature","properties":{"resourceCoords":[228.0,1221.3],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-110.9712032250144,32.22189321269592]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801947:00180_1947-0006__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Tucson, Arizona | 1947 | sanborn00180_007 p6 [2]","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.93"},{"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":"6600.0"},{"label":"split_canvas_h","value":"3955.2"}],"created":"2026-10-18T07:38:07Z","modified":"2026-10-18T07:38:07Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801947:00180_1947-0006__2/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801947:00180_1947-0006","type":"ImageService3","width":1650,"height":2002},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"201.0,813.6 926.8,806.1 1429.9,797.1 1465.7,29.6 890.5,132.1 836.2,152.6 158.5,269.3 201.0,813.6\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801947:00180_1947-0006__2/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1441.0,799.9],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-110.96860382554377,32.22201373315605]}},{"type":"Feature","properties":{"resourceCoords":[1441.0,36.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-110.96869561924203,32.22339744534185]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801947:00180_1947-0007/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Tucson, Arizona | 1947 | sanborn00180_007 p7","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"6"},{"label":"confidence","value":"0.28"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T07:38:07Z","modified":"2026-10-18T07:38:07Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801947:00180_1947-0007/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801947:00180_1947-0007","type":"ImageService3","width":1650,"height":2002},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"331.8,1677.4 334.5,1640.8 392.1,1646.4 466.6,1653.5 717.5,1761.9 718.7,1732.2 1129.2,1752.4 1451.8,1765.5 1509.2,1761.2 1507.6,1383.8 1499.8,615.9 1501.1,374.9 842.3,339.8 875.8,248.9 1.0,216.0 1.0,335.9 69.6,368.7 148.1,1324.0 126.2,1419.6 1.0,1401.0 1.0,1663.3 331.8,1677.4\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801947:00180_1947-0007/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1502.0,887.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-110.9709473,32.2199647]}},{"type":"Feature","properties":{"resourceCoords":[1502.0,284.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-110.9711354,32.2210337]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801947:00180_1947-0070__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Tucson, Arizona | 1947 | sanborn00180_007 p70 [1]","metadata":[{"label":"streets","value":"7"},{"label":"intersections","value":"7"},{"label":"confidence","value":"0.90"},{"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":"6600.0"},{"label":"split_canvas_h","value":"5326.0"}],"created":"2026-10-18T07:38:07Z","modified":"2026-10-18T07:38:07Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801947:00180_1947-0070__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801947:00180_1947-0070","type":"ImageService3","width":1650,"height":2002},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"119.8,1206.2 178.3,1330.5 190.6,1330.5 199.7,1330.5 199.8,1323.8 633.6,1329.1 692.1,1262.7 824.8,1328.2 1339.3,1281.8 1611.5,1324.6 1626.0,1273.1 1592.4,179.1 1104.0,81.5 397.2,122.5 397.0,104.3 47.2,113.5 49.7,499.4 105.3,498.8 136.1,1205.8 119.8,1206.2\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801947:00180_1947-0070__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1113.0,483.8],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-110.9631439,32.2094537]}},{"type":"Feature","properties":{"resourceCoords":[397.0,1197.5],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-110.9647039,32.2081496]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801947:00180_1947-0071__3/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Tucson, Arizona | 1947 | sanborn00180_007 p71 [3]","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"9"},{"label":"confidence","value":"0.91"},{"label":"confidence_provisional","value":"true"},{"label":"confidence_model","value":"corpus-v2"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"2734.0"},{"label":"split_canvas_w","value":"6600.0"},{"label":"split_canvas_h","value":"5274.0"}],"created":"2026-10-18T07:38:07Z","modified":"2026-10-18T07:38:07Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801947:00180_1947-0071__3/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801947:00180_1947-0071","type":"ImageService3","width":1650,"height":2002},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"81.7,1999.9 84.7,1822.6 223.4,1824.9 367.0,1931.8 492.9,1896.9 474.2,1882.8 1240.0,1926.8 1240.3,1969.4 1624.2,1975.6 1629.3,1949.6 1620.4,1911.9 1605.0,714.2 67.9,711.3 23.5,804.6 18.3,1901.0 46.1,1995.0 81.7,1999.9\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801947:00180_1947-0071__3/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1236.0,1304.3],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-110.9540058,32.2166964]}},{"type":"Feature","properties":{"resourceCoords":[113.0,709.5],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-110.956502,32.2177849]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801947:00180_1947-0072/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Tucson, Arizona | 1947 | sanborn00180_007 p72","metadata":[{"label":"streets","value":"9"},{"label":"intersections","value":"8"},{"label":"confidence","value":"0.71"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T07:38:07Z","modified":"2026-10-18T07:38:07Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801947:00180_1947-0072/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801947:00180_1947-0072","type":"ImageService3","width":1650,"height":2002},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"22.2,181.1 33.9,1008.4 93.3,1254.8 46.1,1915.5 1613.9,1936.0 1612.5,325.0 1562.2,128.1 1164.6,128.3 1163.5,85.5 392.7,54.0 411.8,67.9 285.8,105.2 141.0,1.0 1.0,1.0 1.0,178.6 22.2,181.1\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801947:00180_1947-0072/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[841.0,1234.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-110.9547036,32.2134006]}},{"type":"Feature","properties":{"resourceCoords":[841.0,1919.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-110.9547117,32.2121273]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801947:00180_1947-0073/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Tucson, Arizona | 1947 | sanborn00180_007 p73","metadata":[{"label":"streets","value":"14"},{"label":"intersections","value":"34"},{"label":"confidence","value":"0.98"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T07:38:07Z","modified":"2026-10-18T07:38:07Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801947:00180_1947-0073/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801947:00180_1947-0073","type":"ImageService3","width":1650,"height":2002},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1612.5,1946.0 1581.0,1945.1 1581.7,1777.5 1552.5,1777.7 1349.7,1495.3 1395.9,1494.9 1421.8,1494.7 1344.8,1209.4 1366.7,1209.3 1419.0,928.6 1428.2,928.6 1264.8,644.6 1222.6,644.5 1221.9,592.0 865.6,466.2 865.6,362.9 790.6,362.7 518.7,67.4 679.9,66.8 680.3,27.9 155.7,55.9 150.7,70.2 1.0,69.1 1.0,86.3 23.3,87.0 28.2,576.0 71.8,757.7 21.7,1131.6 46.9,1283.6 26.5,1653.9 59.1,1791.2 28.8,1928.0 113.8,1972.9 658.6,1949.8 1569.9,1980.3 1607.0,1965.7 1612.5,1946.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801947:00180_1947-0073/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[866.0,932.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-110.9715498,32.2036572]}},{"type":"Feature","properties":{"resourceCoords":[152.0,1500.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-110.9746103,32.2015756]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801947:00180_1947-0074__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Tucson, Arizona | 1947 | sanborn00180_007 p74 [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":"1568.0"},{"label":"split_canvas_h","value":"2462.8"}],"created":"2026-10-18T07:38:07Z","modified":"2026-10-18T07:38:07Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801947:00180_1947-0074__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801947:00180_1947-0074","type":"ImageService3","width":1650,"height":2002},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"376.1,183.6 347.9,62.1 164.2,37.5 117.3,38.1 29.0,59.2 24.3,240.2 52.5,252.9 20.9,290.6 16.3,471.6 20.9,511.7 56.5,521.3 59.2,590.4 356.4,591.8 376.1,183.6\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801947:00180_1947-0074__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[105.0,599.7],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-110.98387583454915,32.22051717786246]}},{"type":"Feature","properties":{"resourceCoords":[105.0,58.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-110.98403310452353,32.222533694882365]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801947:00180_1947-0074__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Tucson, Arizona | 1947 | sanborn00180_007 p74 [2]","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"5"},{"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":"6600.0"},{"label":"split_canvas_h","value":"8008.0"}],"created":"2026-10-18T07:38:07Z","modified":"2026-10-18T07:38:07Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801947:00180_1947-0074__2/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801947:00180_1947-0074","type":"ImageService3","width":1650,"height":2002},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"67.8,1960.9 1411.7,1972.0 1601.6,1946.6 1629.0,1034.2 1601.3,568.5 1020.5,570.1 1020.5,567.5 1020.5,559.3 1019.0,287.0 978.2,216.8 980.5,81.1 706.9,61.5 432.9,82.3 395.1,615.1 392.0,615.1 392.0,615.7 332.2,615.3 34.9,616.4 45.4,1069.4 21.5,1199.3 74.0,1450.7 19.9,1849.6 67.8,1960.9\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801947:00180_1947-0074__2/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1003.0,1931.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-110.98847,32.2200713]}},{"type":"Feature","properties":{"resourceCoords":[1003.0,610.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-110.9890345,32.2249206]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801947:00180_1947-0075/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Tucson, Arizona | 1947 | sanborn00180_007 p75","metadata":[{"label":"streets","value":"8"},{"label":"intersections","value":"11"},{"label":"confidence","value":"0.61"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T07:38:07Z","modified":"2026-10-18T07:38:07Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801947:00180_1947-0075/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801947:00180_1947-0075","type":"ImageService3","width":1650,"height":2002},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1568.5,157.9 1510.3,158.5 1513.3,521.0 1499.8,521.0 1537.2,876.6 1533.8,877.0 1512.5,1231.7 1506.5,1231.7 1536.2,1651.5 1478.3,1945.5 1460.8,1945.2 1412.4,1944.7 1206.2,1946.7 848.5,1948.8 437.7,1949.7 163.5,1952.5 67.6,1952.0 73.3,1942.2 32.8,1871.9 67.8,1232.2 31.2,1080.5 29.9,133.7 18.1,133.7 18.1,115.5 297.1,86.3 297.1,91.2 572.4,86.4 572.4,94.2 842.1,94.4 842.1,90.8 1200.1,86.7 1200.1,81.8 1522.7,92.8 1522.2,125.4 1522.3,154.1 1568.5,153.9 1568.5,157.9\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801947:00180_1947-0075/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[23.0,1593.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-110.9657005,32.241561]}},{"type":"Feature","properties":{"resourceCoords":[846.0,1593.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-110.9656912,32.2385595]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801947:00180_1947-0076/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Tucson, Arizona | 1947 | sanborn00180_007 p76","metadata":[{"label":"streets","value":"8"},{"label":"intersections","value":"8"},{"label":"confidence","value":"0.93"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T07:38:07Z","modified":"2026-10-18T07:38:07Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801947:00180_1947-0076/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801947:00180_1947-0076","type":"ImageService3","width":1650,"height":2002},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"157.1,1181.8 132.7,821.5 145.6,821.7 151.0,821.6 35.5,100.0 46.7,99.8 129.8,11.6 337.0,20.0 338.0,12.0 423.4,12.0 466.8,55.5 466.6,69.8 1421.9,84.1 1464.4,97.4 1464.4,220.6 1465.5,441.2 1502.8,441.1 1531.5,808.6 1508.6,808.7 1506.8,808.8 1593.6,1047.2 1539.7,1528.3 1548.9,1526.7 1556.2,1877.2 1542.6,1877.2 1531.0,1879.8 1531.5,1922.4 1433.2,1921.9 1433.3,1911.2 1410.5,1926.8 1351.5,1933.0 1319.0,1923.2 1134.1,1921.4 804.1,1918.0 562.4,1919.9 474.8,1911.0 267.4,1909.0 139.8,1905.0 139.8,1447.6 140.4,1330.2 138.9,1181.6 157.1,1181.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801947:00180_1947-0076/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1147.0,805.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-110.9452137,32.227857]}},{"type":"Feature","properties":{"resourceCoords":[139.0,99.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-110.9495451,32.2304137]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801947:00180_1947-0077/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Tucson, Arizona | 1947 | sanborn00180_007 p77","metadata":[{"label":"streets","value":"7"},{"label":"intersections","value":"6"},{"label":"confidence","value":"0.59"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T07:38:07Z","modified":"2026-10-18T07:38:07Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801947:00180_1947-0077/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801947:00180_1947-0077","type":"ImageService3","width":1650,"height":2002},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1539.7,1906.2 1536.6,1219.8 1541.0,1034.1 1529.8,1034.1 1525.3,76.9 1494.9,77.0 762.9,76.8 700.4,58.0 495.4,50.0 229.7,49.8 111.7,70.3 1.0,177.4 1.0,1726.5 124.4,1851.5 124.1,1879.7 1539.7,1906.2\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801947:00180_1947-0077/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[771.0,77.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-110.9467615,32.2338258]}},{"type":"Feature","properties":{"resourceCoords":[1465.0,77.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-110.9452608,32.2338327]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801947:00180_1947-0078/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Tucson, Arizona | 1947 | sanborn00180_007 p78","metadata":[{"label":"streets","value":"5"},{"label":"intersections","value":"4"},{"label":"confidence","value":"0.85"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T07:38:07Z","modified":"2026-10-18T07:38:07Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801947:00180_1947-0078/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801947:00180_1947-0078","type":"ImageService3","width":1650,"height":2002},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"142.9,1879.9 140.8,1191.3 145.5,1005.1 134.2,1005.0 131.1,44.8 256.4,44.8 625.8,44.6 625.6,33.4 709.3,34.0 709.3,37.7 709.0,81.7 1349.2,115.4 1348.2,322.5 1347.0,605.0 1352.7,1214.2 1350.2,1901.3 709.2,1900.8 709.1,1916.5 624.7,1889.6 142.9,1879.9\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801947:00180_1947-0078/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[705.0,605.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-110.9438851,32.2328192]}},{"type":"Feature","properties":{"resourceCoords":[1347.0,605.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-110.9425013,32.2328272]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801947:00180_1947-0079/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Tucson, Arizona | 1947 | sanborn00180_007 p79","metadata":[{"label":"streets","value":"5"},{"label":"intersections","value":"6"},{"label":"confidence","value":"0.98"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T07:38:07Z","modified":"2026-10-18T07:38:07Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801947:00180_1947-0079/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801947:00180_1947-0079","type":"ImageService3","width":1650,"height":2002},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"376.4,1988.4 200.4,1510.9 204.1,1510.8 249.9,1510.4 189.7,773.5 114.7,774.0 110.9,331.5 109.8,68.5 755.5,63.2 1438.5,57.9 1505.5,57.0 1534.2,766.5 1525.8,766.6 1547.7,1493.8 1534.0,1493.8 1578.2,1897.1 1448.4,1890.3 1448.2,1941.6 778.1,1931.2 778.3,1941.6 380.9,1946.7 376.4,1988.4\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801947:00180_1947-0079/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[764.0,770.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-110.9424603,32.2291845]}},{"type":"Feature","properties":{"resourceCoords":[1445.0,1494.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-110.9410064,32.2278714]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801947:00180_1947-0008/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Tucson, Arizona | 1947 | sanborn00180_007 p8","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"10"},{"label":"confidence","value":"0.81"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T07:38:07Z","modified":"2026-10-18T07:38:07Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801947:00180_1947-0008/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801947:00180_1947-0008","type":"ImageService3","width":1650,"height":2002},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"381.2,1287.6 300.8,564.3 275.1,294.3 271.2,251.2 531.9,235.6 896.0,205.0 900.5,241.7 901.4,249.4 1395.3,312.7 1397.3,258.9 1402.3,209.1 1448.5,211.8 1480.8,213.0 1473.5,918.9 1457.2,918.4 1472.3,1417.9 1352.8,1391.7 1343.9,1602.0 891.1,1587.2 890.3,1634.2 420.5,1658.2 418.8,1643.3 381.2,1287.6\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801947:00180_1947-0008/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[896.0,770.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-110.9696856,32.2201092]}},{"type":"Feature","properties":{"resourceCoords":[896.0,205.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-110.9697451,32.2211766]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801947:00180_1947-0080/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Tucson, Arizona | 1947 | sanborn00180_007 p80","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"9"},{"label":"confidence","value":"0.99"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T07:38:07Z","modified":"2026-10-18T07:38:07Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801947:00180_1947-0080/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801947:00180_1947-0080","type":"ImageService3","width":1650,"height":2002},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"158.7,1904.9 115.3,1502.5 129.0,1502.5 108.4,776.9 116.8,776.9 89.5,68.9 698.2,62.0 771.4,83.7 1410.5,81.7 1515.0,81.6 1562.2,769.0 1549.0,769.2 1555.5,1493.1 1595.2,1492.7 1593.7,1989.8 1591.0,1990.0 1590.0,2001.0 1388.5,2001.0 1388.4,1969.9 704.5,1934.5 158.7,1904.9\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801947:00180_1947-0080/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[707.0,773.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-110.9395466,32.2291945]}},{"type":"Feature","properties":{"resourceCoords":[1389.0,1495.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-110.9380844,32.2278843]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801947:00180_1947-0082__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Tucson, Arizona | 1947 | sanborn00180_007 p82 [1]","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.93"},{"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":"6600.0"},{"label":"split_canvas_h","value":"6438.4"}],"created":"2026-10-18T07:38:07Z","modified":"2026-10-18T07:38:07Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801947:00180_1947-0082__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801947:00180_1947-0082","type":"ImageService3","width":1650,"height":2002},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1616.6,1608.6 1622.1,1608.6 1621.0,1301.6 1607.0,1301.6 1607.9,1155.2 1563.2,1157.6 1564.5,1122.0 1520.2,1123.4 1525.3,971.4 1527.9,936.2 1545.9,852.2 1549.6,760.9 1550.4,430.1 1549.8,400.8 1550.3,382.7 1442.6,39.5 1441.5,39.5 1392.6,38.8 1184.0,39.7 822.3,40.0 406.9,38.9 129.5,40.3 32.5,39.4 11.8,74.2 13.2,392.1 66.1,811.2 61.9,878.5 35.6,889.5 72.6,942.2 67.8,1084.2 26.1,1151.2 173.4,1153.7 227.1,1154.1 430.0,1155.5 441.6,1603.1 1073.8,1607.9 1096.5,1570.7 1208.5,1605.2 1616.2,1600.8 1616.6,1608.6\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801947:00180_1947-0082__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[821.0,1120.7],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-110.97183384581439,32.238522052817274]}},{"type":"Feature","properties":{"resourceCoords":[1535.0,1120.7],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-110.97181069961034,32.23594722982702]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801947:00180_1947-0082__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Tucson, Arizona | 1947 | sanborn00180_007 p82 [2]","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":"4611.2"},{"label":"split_canvas_w","value":"1818.0"},{"label":"split_canvas_h","value":"3396.8"}],"created":"2026-10-18T07:38:07Z","modified":"2026-10-18T07:38:07Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801947:00180_1947-0082__2/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801947:00180_1947-0082","type":"ImageService3","width":1650,"height":2002},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"23.1,1917.7 116.7,1976.6 417.1,1945.6 425.9,1945.7 425.2,1832.1 422.5,1741.3 433.6,1741.4 414.2,1364.8 421.8,1364.7 420.8,1206.8 420.6,1189.9 1.0,1215.3 1.0,1368.8 14.6,1368.7 17.8,1690.6 12.1,1691.2 23.1,1917.7\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801947:00180_1947-0082__2/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,1152.8],"type":"corner"},"geometry":{"type":"Point","coordinates":[-110.97170117745118,32.2356836409186]}},{"type":"Feature","properties":{"resourceCoords":[454.5,1152.8],"type":"corner"},"geometry":{"type":"Point","coordinates":[-110.9716990724439,32.23411209110534]}},{"type":"Feature","properties":{"resourceCoords":[454.5,2002.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-110.97515315790905,32.23410873392384]}},{"type":"Feature","properties":{"resourceCoords":[0.0,2002.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-110.97515526291633,32.2356802837371]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801947:00180_1947-0082__3/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Tucson, Arizona | 1947 | sanborn00180_007 p82 [3]","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"6"},{"label":"confidence","value":"0.55"},{"label":"confidence_provisional","value":"true"},{"label":"confidence_model","value":"corpus-v2"},{"label":"split_canvas_x","value":"1818.0"},{"label":"split_canvas_y","value":"6438.4"},{"label":"split_canvas_w","value":"4782.0"},{"label":"split_canvas_h","value":"1569.6"}],"created":"2026-10-18T07:38:07Z","modified":"2026-10-18T07:38:07Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801947:00180_1947-0082__3/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801947:00180_1947-0082","type":"ImageService3","width":1650,"height":2002},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1573.4,1757.7 1529.4,1757.5 1529.6,1650.9 1183.2,1642.6 1183.2,1644.1 824.5,1665.8 824.4,1637.6 572.6,1637.5 555.9,1642.7 518.5,1690.6 502.2,1919.8 553.2,1919.9 553.3,1948.5 553.3,1978.0 725.0,2001.0 1311.7,2001.0 1529.0,1981.7 1529.0,1914.5 1572.5,1905.0 1572.8,1868.5 1573.4,1757.7\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801947:00180_1947-0082__3/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[823.4,1920.1],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-110.9524623,32.2386279]}},{"type":"Feature","properties":{"resourceCoords":[553.5,1637.5],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-110.9512535,32.239616]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801947:00180_1947-0083/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Tucson, Arizona | 1947 | sanborn00180_007 p83","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.79"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T07:38:07Z","modified":"2026-10-18T07:38:07Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801947:00180_1947-0083/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801947:00180_1947-0083","type":"ImageService3","width":1650,"height":2002},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1602.0,1588.5 1312.9,1812.4 1309.5,1726.2 1022.0,1848.1 1022.0,2001.0 1003.9,2001.0 977.6,2001.0 977.2,1893.2 627.4,1886.5 627.4,1888.0 265.1,1911.6 264.9,1883.1 10.6,1884.3 65.0,1867.2 50.0,1822.2 91.4,1713.7 88.0,1552.6 39.3,1533.8 24.5,1425.1 28.4,1350.2 65.9,1305.3 73.8,1039.4 70.4,870.8 25.5,833.2 15.3,170.2 26.8,80.3 79.3,37.2 260.1,142.7 260.2,115.1 621.2,135.6 620.9,151.8 916.6,150.9 1032.6,148.9 1309.9,155.6 1446.9,157.4 1592.7,155.9 1592.6,198.3 1598.3,198.2 1599.3,385.2 1599.8,464.1 1601.1,836.0 1591.7,867.8 1588.0,971.9 1588.3,1106.9 1599.0,1166.8 1632.2,1200.9 1632.6,1532.0 1602.0,1566.3 1602.0,1588.5\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801947:00180_1947-0083/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[269.0,1175.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-110.94823179635938,32.23862026858082]}},{"type":"Feature","properties":{"resourceCoords":[8.0,161.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-110.94391721205211,32.23956614871517]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801947:00180_1947-0084/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Tucson, Arizona | 1947 | sanborn00180_007 p84","metadata":[{"label":"streets","value":"11"},{"label":"intersections","value":"39"},{"label":"confidence","value":"0.85"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T07:38:07Z","modified":"2026-10-18T07:38:07Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801947:00180_1947-0084/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801947:00180_1947-0084","type":"ImageService3","width":1650,"height":2002},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"570.0,1921.7 211.4,1893.2 210.7,1920.6 33.1,1811.7 44.5,1802.7 66.5,1508.6 42.7,1414.8 68.0,1292.3 35.5,1097.6 58.2,930.3 34.0,851.4 27.2,359.0 14.9,358.6 119.9,246.1 76.3,245.3 284.5,130.8 283.0,167.2 637.9,160.3 640.8,85.2 842.2,13.3 984.0,14.0 988.8,11.9 988.6,58.1 987.6,127.6 1283.4,184.9 1283.8,151.9 1568.6,259.1 1556.2,957.5 1584.9,958.2 1591.2,1301.2 1585.7,1301.1 1572.5,1641.7 1583.0,1642.0 1560.3,1964.3 1538.2,1963.8 1391.2,1961.9 1254.9,1957.0 979.2,1944.2 863.7,1943.6 569.5,1937.8 570.0,1921.7\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801947:00180_1947-0084/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[621.0,599.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-110.938144,32.2372903]}},{"type":"Feature","properties":{"resourceCoords":[955.0,1625.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-110.9424963,32.2359924]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801947:00180_1947-0085/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Tucson, Arizona | 1947 | sanborn00180_007 p85","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.95"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T07:38:07Z","modified":"2026-10-18T07:38:07Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801947:00180_1947-0085/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801947:00180_1947-0085","type":"ImageService3","width":1650,"height":2002},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"294.6,1960.1 294.8,1970.5 1610.8,1970.1 1625.7,548.7 1593.2,88.5 1492.3,35.9 617.2,30.0 614.3,17.6 607.2,46.0 608.1,155.6 577.7,160.9 308.4,163.4 309.4,236.5 1.0,523.9 1.0,524.8 36.9,525.8 59.6,871.6 53.0,871.7 55.2,1235.9 75.2,1235.8 73.1,1599.0 1.0,1598.9 1.0,1622.2 187.4,1960.2 270.3,1960.2 294.6,1960.1\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801947:00180_1947-0085/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[623.0,1230.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-110.9353069520362,32.227914057011574]}},{"type":"Feature","properties":{"resourceCoords":[1307.0,1942.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-110.93238341573051,32.225352587727194]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801947:00180_1947-0086__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Tucson, Arizona | 1947 | sanborn00180_007 p86 [1]","metadata":[{"label":"streets","value":"9"},{"label":"intersections","value":"22"},{"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":"6600.0"},{"label":"split_canvas_h","value":"8008.0"}],"created":"2026-10-18T07:38:07Z","modified":"2026-10-18T07:38:07Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801947:00180_1947-0086__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801947:00180_1947-0086","type":"ImageService3","width":1650,"height":2002},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"30.9,1091.0 26.5,1504.5 25.8,1541.9 1.0,1543.7 1.0,1591.7 25.6,1590.6 23.1,1811.6 18.8,1853.3 28.9,1847.3 35.5,1843.5 72.0,1903.1 290.1,1938.7 597.9,1904.7 832.3,1803.4 869.8,1025.9 871.5,1021.5 1308.3,1021.5 1603.3,1018.5 1596.8,559.1 1627.0,559.4 1626.9,550.0 1626.9,549.1 1602.9,549.0 1520.8,548.4 1337.8,210.5 1338.0,189.2 1410.3,189.9 1411.8,83.9 1309.6,82.3 1309.7,66.9 969.2,45.7 633.0,24.0 632.6,49.5 299.6,40.2 299.6,45.4 102.2,45.5 41.9,545.3 51.1,543.8 55.4,893.1 41.9,893.1 30.2,895.6 30.9,1091.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801947:00180_1947-0086__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[631.0,1251.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-110.9409561,32.2226852]}},{"type":"Feature","properties":{"resourceCoords":[974.0,782.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-110.9394999,32.2244059]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801947:00180_1947-0086__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Tucson, Arizona | 1947 | sanborn00180_007 p86 [2]","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.70"},{"label":"confidence_provisional","value":"true"},{"label":"confidence_model","value":"corpus-v2"},{"label":"split_canvas_x","value":"3486.0"},{"label":"split_canvas_y","value":"4086.0"},{"label":"split_canvas_w","value":"3114.0"},{"label":"split_canvas_h","value":"3922.0"}],"created":"2026-10-18T07:38:07Z","modified":"2026-10-18T07:38:07Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801947:00180_1947-0086__2/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801947:00180_1947-0086","type":"ImageService3","width":1650,"height":2002},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1634.0,1920.0 1633.5,1692.7 1607.2,1694.3 1606.6,1645.0 1633.1,1642.6 1633.3,1604.2 1632.3,1178.8 1629.7,1021.5 1559.8,1021.5 1529.1,1021.5 1505.7,1026.7 1445.3,1033.2 1412.0,1023.4 1222.4,1022.4 884.1,1021.5 886.4,1162.4 887.1,1390.3 890.8,1709.4 892.1,1939.7 984.3,1939.4 1350.2,1991.7 1590.1,1987.1 1624.6,1966.3 1625.0,1965.0 1627.6,1964.5 1630.1,1963.0 1634.0,1920.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801947:00180_1947-0086__2/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1235.3,1676.2],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-110.94521465973172,32.22148890167169]}},{"type":"Feature","properties":{"resourceCoords":[1235.3,1039.5],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-110.9452068035163,32.22374325139941]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801947:00180_1947-0087__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Tucson, Arizona | 1947 | sanborn00180_007 p87 [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":"6600.0"},{"label":"split_canvas_h","value":"8008.0"}],"created":"2026-10-18T07:38:07Z","modified":"2026-10-18T07:38:07Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801947:00180_1947-0087__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801947:00180_1947-0087","type":"ImageService3","width":1650,"height":2002},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1600.5,1036.8 1611.5,1000.7 1613.1,685.2 1613.2,670.8 1331.2,364.6 1259.4,365.2 1258.5,101.0 1253.5,71.1 1145.9,71.4 1118.0,64.2 1051.2,59.3 139.4,31.6 14.1,59.6 14.1,94.2 1.0,99.1 1.0,114.2 99.3,113.0 104.0,110.9 104.5,156.3 104.7,224.8 396.7,276.6 396.6,244.1 678.6,345.0 677.4,1032.7 705.7,1032.9 717.4,1370.4 711.9,1370.4 704.3,1705.9 817.4,1706.6 957.5,1707.3 1259.7,1704.9 1600.6,1706.6 1601.4,1370.2 1600.5,1036.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801947:00180_1947-0087__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[953.0,1033.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-110.93957168232484,32.232863843237894]}},{"type":"Feature","properties":{"resourceCoords":[953.0,61.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-110.93534874455956,32.23289292579803]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801947:00180_1947-0087__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Tucson, Arizona | 1947 | sanborn00180_007 p87 [2]","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"7"},{"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":"1470.8"},{"label":"split_canvas_w","value":"2680.4"},{"label":"split_canvas_h","value":"2393.2"}],"created":"2026-10-18T07:38:07Z","modified":"2026-10-18T07:38:07Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801947:00180_1947-0087__2/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801947:00180_1947-0087","type":"ImageService3","width":1650,"height":2002},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"13.7,954.6 665.3,964.2 660.3,384.6 22.9,378.6 13.7,954.6\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801947:00180_1947-0087__2/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[337.1,948.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-110.9396457,32.2406751]}},{"type":"Feature","properties":{"resourceCoords":[12.0,679.3],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-110.9410974,32.2416837]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801947:00180_1947-0087__3/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Tucson, Arizona | 1947 | sanborn00180_007 p87 [3]","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.95"},{"label":"confidence_provisional","value":"true"},{"label":"confidence_model","value":"corpus-v2"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"3864.0"},{"label":"split_canvas_w","value":"2680.4"},{"label":"split_canvas_h","value":"4144.0"}],"created":"2026-10-18T07:38:07Z","modified":"2026-10-18T07:38:07Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801947:00180_1947-0087__3/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801947:00180_1947-0087","type":"ImageService3","width":1650,"height":2002},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"2.5,1745.9 11.1,1745.8 22.0,1920.2 66.5,1953.6 567.6,1931.9 630.7,1954.2 664.2,1887.5 667.2,1887.5 666.8,1663.2 664.5,1352.4 664.6,1130.3 662.9,992.1 421.4,994.2 333.9,985.4 126.6,983.5 30.3,980.6 29.4,1343.0 1.1,1343.2 1.8,1623.0 26.4,1622.9 22.0,1661.5 2.0,1661.7 2.5,1745.9\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801947:00180_1947-0087__3/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[339.1,1648.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-110.9480650480158,32.221428695405336]}},{"type":"Feature","properties":{"resourceCoords":[13.0,1648.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-110.94946581024635,32.221427438759044]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801947:00180_1947-0088/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Tucson, Arizona | 1947 | sanborn00180_007 p88","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.92"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T07:38:07Z","modified":"2026-10-18T07:38:07Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801947:00180_1947-0088/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801947:00180_1947-0088","type":"ImageService3","width":1650,"height":2002},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"34.2,66.0 164.0,26.0 1291.9,49.9 1293.9,81.4 1443.9,79.6 1505.0,379.3 1502.1,379.3 1519.5,680.0 1527.5,680.0 1513.0,981.5 1512.2,981.5 1486.4,1281.9 1502.8,1281.8 1618.9,1397.9 1609.8,1960.3 1165.1,1958.7 1164.5,1893.8 1128.3,1896.8 463.5,1904.5 95.6,1907.7 94.8,1823.0 58.0,1823.3 34.2,66.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801947:00180_1947-0088/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[457.0,689.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-110.95533150659746,32.2467871716371]}},{"type":"Feature","properties":{"resourceCoords":[1455.0,992.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-110.9512944332198,32.245733053422484]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801947:00180_1947-0089/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Tucson, Arizona | 1947 | sanborn00180_007 p89","metadata":[{"label":"streets","value":"9"},{"label":"intersections","value":"20"},{"label":"confidence","value":"0.45"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T07:38:07Z","modified":"2026-10-18T07:38:07Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801947:00180_1947-0089/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801947:00180_1947-0089","type":"ImageService3","width":1650,"height":2002},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"788.8,634.0 429.8,505.7 430.2,401.4 354.5,400.9 81.3,101.7 244.1,101.8 429.9,104.7 612.9,104.6 789.7,104.3 967.3,98.3 1152.6,96.8 1177.7,96.8 1333.0,99.3 1512.0,106.7 1582.1,107.8 1621.0,732.6 1576.0,1962.0 1362.8,1963.8 1198.7,1924.9 1177.4,2001.0 1145.4,2001.0 1146.8,1831.9 1117.3,1832.0 913.8,1546.2 960.5,1546.0 986.7,1545.8 910.2,1257.6 932.2,1257.6 986.2,974.6 995.5,974.6 831.8,687.3 789.2,687.0 788.8,634.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801947:00180_1947-0089/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[787.0,973.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-110.9700196,32.2036788]}},{"type":"Feature","properties":{"resourceCoords":[1510.0,1261.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-110.9669248,32.2026636]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801947:00180_1947-0009/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Tucson, Arizona | 1947 | sanborn00180_007 p9","metadata":[{"label":"streets","value":"7"},{"label":"intersections","value":"14"},{"label":"confidence","value":"0.74"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T07:38:07Z","modified":"2026-10-18T07:38:07Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801947:00180_1947-0009/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801947:00180_1947-0009","type":"ImageService3","width":1650,"height":2002},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"86.1,583.2 92.8,54.8 220.9,195.8 1218.2,450.2 1482.0,719.8 1559.2,800.4 1572.5,1605.4 1589.3,1622.7 1549.3,1849.1 1532.7,1849.0 1180.2,1839.6 839.5,1825.7 432.4,1820.8 124.6,1818.1 75.5,1816.5 72.9,1779.6 78.0,1365.5 86.1,583.2\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801947:00180_1947-0009/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[434.0,1352.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-110.9678786,32.2220543]}},{"type":"Feature","properties":{"resourceCoords":[1232.0,1318.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-110.9661995,32.2221433]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801947:00180_1947-0090/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Tucson, Arizona | 1947 | sanborn00180_007 p90","metadata":[{"label":"streets","value":"10"},{"label":"intersections","value":"25"},{"label":"confidence","value":"0.75"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T07:38:07Z","modified":"2026-10-18T07:38:07Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801947:00180_1947-0090/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801947:00180_1947-0090","type":"ImageService3","width":1650,"height":2002},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1633.2,1526.4 1633.2,1542.8 1375.5,1640.0 1373.8,1715.8 1015.8,1729.2 1016.6,1692.4 808.5,1811.6 852.6,1811.6 748.6,1927.0 121.2,1915.4 80.4,1828.6 97.1,1584.0 33.3,989.0 36.8,462.1 61.7,116.0 95.9,59.7 1142.5,51.6 1552.5,99.5 1596.9,209.0 1627.8,660.8 1599.5,1515.0 1633.2,1507.4 1633.2,1526.4\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801947:00180_1947-0090/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[699.0,818.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-110.9324815,32.2397076]}},{"type":"Feature","properties":{"resourceCoords":[699.0,1484.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-110.9353032,32.2396917]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801947:00180_1947-0091/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Tucson, Arizona | 1947 | sanborn00180_007 p91","metadata":[{"label":"streets","value":"11"},{"label":"intersections","value":"29"},{"label":"confidence","value":"0.77"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T07:38:07Z","modified":"2026-10-18T07:38:07Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801947:00180_1947-0091/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801947:00180_1947-0091","type":"ImageService3","width":1650,"height":2002},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"639.9,1811.0 639.9,1808.2 352.1,1857.8 349.4,2001.0 319.4,2001.0 323.7,1917.5 203.2,1921.9 199.3,1924.8 140.6,1853.5 102.4,1852.7 86.0,1151.2 118.8,1151.7 135.2,801.5 133.0,801.5 139.5,449.7 138.8,449.6 140.5,260.8 44.4,258.4 22.5,181.2 9.0,91.0 90.0,46.4 827.2,46.6 1250.9,95.2 1334.5,63.5 1465.7,82.0 1507.6,60.5 1577.8,107.4 1603.3,284.8 1611.1,1729.0 1615.5,1729.2 1501.2,1836.6 1501.0,1852.3 1215.0,1818.9 1215.0,1818.2 927.5,1795.5 927.4,1803.2 639.9,1811.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801947:00180_1947-0091/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[945.0,817.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-110.9468435,32.2468292]}},{"type":"Feature","properties":{"resourceCoords":[645.0,1513.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-110.9498279,32.2478406]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801947:00180_1947-0092/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Tucson, Arizona | 1947 | sanborn00180_007 p92","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.56"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T07:38:07Z","modified":"2026-10-18T07:38:07Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801947:00180_1947-0092/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801947:00180_1947-0092","type":"ImageService3","width":1650,"height":2002},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1513.3,797.7 1508.7,1153.7 1475.3,1154.3 1516.0,1865.7 1554.8,1865.2 1616.8,1935.6 1567.5,1975.0 1346.1,1976.7 97.0,1929.2 139.2,1463.2 20.9,990.7 37.1,139.3 63.4,74.2 842.1,37.5 1331.3,98.6 1360.9,81.0 1377.7,171.9 1402.6,249.7 1500.2,248.7 1505.7,440.4 1511.1,797.8 1513.3,797.7\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801947:00180_1947-0092/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[859.0,1161.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-110.9483627255022,32.25205650443464]}},{"type":"Feature","properties":{"resourceCoords":[543.0,123.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-110.94401649586909,32.253144065304824]}}]}}]}