{"id":"https://data.mapsnap.org/runs/v1.3/iiif/chronoscope/sanborn00180_008.main.iiif.json","type":"AnnotationPage","@context":["http://www.w3.org/ns/anno.jsonld"],"label":"Tucson, Arizona | 1949 | mapsnap generated fit (2026-09-21)","creator":{"type":"Software","name":"mapsnap","homepage":"https://mapsnap.org"},"rights":"https://opendatacommons.org/licenses/odbl/1-0/","metadata":[{"label":"generated","value":"2026-09-21"},{"label":"run","value":"corpus-v1"},{"label":"pages","value":"108"},{"label":"placed","value":"95"},{"label":"unplaced","value":"13"},{"label":"fit sources","value":"georef 63, georef-snap 27, snap:0 3, georef-street 2"},{"label":"key map","value":"georeferenced"},{"label":"split sheets","value":"13 sheet(s) cut into 28 panels"},{"label":"unplaced pages","value":"p0 (tier 4, 32.22505,-110.96384 +/-3392m); p16__1 (tier 2, 32.23257,-110.97884 +/-145m); p16__2 (tier 2, 32.23257,-110.97884 +/-145m); p19__1 (tier 1, 32.22724,-110.97790 +/-110m); p22__1 (tier 1, 32.23187,-110.92644 +/-100m); p2__1 (tier 1, 32.23739,-110.95206 +/-100m); p2__2 (tier 1, 32.23688,-110.95314 +/-125m); p50__1 (tier 1, 32.21301,-110.96164 +/-260m); p70__1 (tier 1, 32.20929,-110.96305 +/-184m); p71__1 (tier 4, 32.22505,-110.96384 +/-3392m); p71__2 (tier 4, 32.22505,-110.96384 +/-3392m); p74__3 (tier 1, 32.22028,-110.98362 +/-100m); p81 (tier 4, 32.22505,-110.96384 +/-3392m)"}],"items":[{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801949:00180_1949-0001/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Tucson, Arizona | 1949 | sanborn00180_008 p1","metadata":[{"label":"streets","value":"7"},{"label":"intersections","value":"8"}],"created":"2026-09-21T15:05:48Z","modified":"2026-09-21T15:05:48Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801949:00180_1949-0001/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801949:00180_1949-0001","type":"ImageService3","width":1613,"height":1912},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"171.1,482.8 842.5,410.1 821.1,163.8 1309.0,126.5 1338.3,1427.5 1613.0,1402.8 1613.0,1863.2 1201.0,1849.7 1187.9,1912.0 -0.0,1912.0 -0.0,612.2 187.2,580.4 171.1,482.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801949:00180_1949-0001/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[309.0,1126.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-110.976556,32.2225217]}},{"type":"Feature","properties":{"resourceCoords":[1446.0,411.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-110.9745405,32.2239424]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801949:00180_1949-0010/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Tucson, Arizona | 1949 | sanborn00180_008 p10","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T15:05:48Z","modified":"2026-09-21T15:05:48Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801949:00180_1949-0010/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801949:00180_1949-0010","type":"ImageService3","width":1613,"height":1921},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1613.0,1691.8 54.6,1693.2 55.3,240.9 1613.0,255.1 1613.0,1691.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801949:00180_1949-0010/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-110.96873488073223,32.2216509167031]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-110.96529742217088,32.22166773084474]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,1921.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-110.9652739182962,32.218179873568246]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1921.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-110.96871137685756,32.2181630594266]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801949:00180_1949-0011/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Tucson, Arizona | 1949 | sanborn00180_008 p11","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T15:05:48Z","modified":"2026-09-21T15:05:48Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801949:00180_1949-0011/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801949:00180_1949-0011","type":"ImageService3","width":1613,"height":1919},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"110.4,1874.8 122.1,1164.3 210.1,1165.3 237.8,316.9 853.4,320.9 858.4,0.0 1575.0,0.0 1545.8,1896.5 470.3,1849.2 469.1,1882.7 110.4,1874.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801949:00180_1949-0011/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-110.9721163874543,32.23634780992873]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-110.96866326245782,32.236412440514556]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,1919.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-110.96857299713791,32.23291290278002]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1919.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-110.9720261221344,32.2328482721942]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801949:00180_1949-0012/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Tucson, Arizona | 1949 | sanborn00180_008 p12","metadata":[{"label":"streets","value":"8"},{"label":"intersections","value":"15"}],"created":"2026-09-21T15:05:48Z","modified":"2026-09-21T15:05:48Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801949:00180_1949-0012/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801949:00180_1949-0012","type":"ImageService3","width":1613,"height":1936},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"853.5,265.6 853.7,227.9 1412.5,236.4 1412.0,275.3 1508.0,277.0 1478.9,1936.0 33.9,1936.0 60.7,251.9 853.5,265.6\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801949:00180_1949-0012/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[412.0,1186.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-110.967948,32.2342444]}},{"type":"Feature","properties":{"resourceCoords":[1508.0,277.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-110.965656,32.2359258]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801949:00180_1949-0013/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Tucson, Arizona | 1949 | sanborn00180_008 p13","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T15:05:48Z","modified":"2026-09-21T15:05:48Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801949:00180_1949-0013/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801949:00180_1949-0013","type":"ImageService3","width":1613,"height":1935},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"95.6,279.6 -0.0,279.1 -0.0,240.7 811.0,242.7 813.5,0.0 1529.0,0.0 1524.5,1864.6 445.7,1855.8 445.6,1908.9 87.2,1906.4 95.6,279.6\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801949:00180_1949-0013/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-110.96586595690022,32.236433456247696]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-110.96241667359637,32.23646027360691]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,1935.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-110.96237890724254,32.232935485439505]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1935.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-110.96582819054639,32.23290866808029]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801949:00180_1949-0014/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Tucson, Arizona | 1949 | sanborn00180_008 p14","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T15:05:48Z","modified":"2026-09-21T15:05:48Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801949:00180_1949-0014/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801949:00180_1949-0014","type":"ImageService3","width":1613,"height":1933},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1519.2,0.0 1517.9,243.7 1553.5,243.9 1553.1,294.8 1518.9,294.6 1508.9,1872.3 66.6,1897.7 76.5,0.0 1519.2,0.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801949:00180_1949-0014/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-110.96276037608943,32.23644355295534]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-110.95930069394272,32.23647846935686]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,1933.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-110.9592515726815,32.2329467096819]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1933.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-110.9627112548282,32.23291179328038]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801949:00180_1949-0015/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Tucson, Arizona | 1949 | sanborn00180_008 p15","metadata":[{"label":"streets","value":"5"},{"label":"intersections","value":"9"}],"created":"2026-09-21T15:05:48Z","modified":"2026-09-21T15:05:48Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801949:00180_1949-0015/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801949:00180_1949-0015","type":"ImageService3","width":1613,"height":1935},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"133.0,158.0 1410.0,158.0 1400.2,1746.7 132.6,1796.1 133.0,158.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801949:00180_1949-0015/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[133.0,158.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-110.959495,32.2359382]}},{"type":"Feature","properties":{"resourceCoords":[1410.0,158.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-110.956782,32.2359495]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801949:00180_1949-0017/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Tucson, Arizona | 1949 | sanborn00180_008 p17","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T15:05:48Z","modified":"2026-09-21T15:05:48Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801949:00180_1949-0017/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801949:00180_1949-0017","type":"ImageService3","width":1613,"height":1935},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"-0.0,-0.0 1613.0,0.0 1613.0,1935.0 1501.3,1935.0 1503.9,1788.0 -0.0,1761.8 -0.0,-0.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801949:00180_1949-0017/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-110.98418370292015,32.234872879067616]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-110.98106031684601,32.23621058090002]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,1935.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-110.97917647317588,32.23301879806145]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1935.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-110.98229985925002,32.231681096229046]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801949:00180_1949-0018/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Tucson, Arizona | 1949 | sanborn00180_008 p18","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T15:05:48Z","modified":"2026-09-21T15:05:48Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801949:00180_1949-0018/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801949:00180_1949-0018","type":"ImageService3","width":1613,"height":1933},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1613.0,0.0 1613.0,1723.3 1492.2,1931.7 1328.2,1841.0 457.6,1842.6 456.9,1933.0 195.6,1933.0 61.4,1720.8 26.6,1933.0 -0.0,1933.0 -0.0,-0.0 1613.0,0.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801949:00180_1949-0018/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-110.98264919180033,32.2318927388057]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-110.97953088499405,32.23317072670946]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,1933.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-110.97773305476724,32.2299873218036]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1933.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-110.98085136157353,32.228709333899836]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801949:00180_1949-0019__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 | 1949 | sanborn00180_008 p19 [2]","metadata":[{"label":"streets","value":"8"},{"label":"intersections","value":"7"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"6452.0"},{"label":"split_canvas_h","value":"7752.0"}],"created":"2026-09-21T15:05:48Z","modified":"2026-09-21T15:05:48Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801949:00180_1949-0019__2/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801949:00180_1949-0019","type":"ImageService3","width":1613,"height":1938},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1524.7,1795.3 1613.0,1477.4 1613.0,1419.0 1573.9,1405.4 1596.7,327.1 1550.0,195.8 1255.7,78.5 406.1,223.5 419.9,312.3 164.9,355.3 -0.0,169.2 0.0,1006.9 396.1,1206.9 616.8,1213.2 600.3,1811.7 1524.7,1795.3\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801949:00180_1949-0019__2/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[964.0,129.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-110.9789457,32.229675]}},{"type":"Feature","properties":{"resourceCoords":[1282.0,83.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-110.9783119,32.2299195]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801949:00180_1949-0020/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Tucson, Arizona | 1949 | sanborn00180_008 p20","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T15:05:48Z","modified":"2026-09-21T15:05:48Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801949:00180_1949-0020/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801949:00180_1949-0020","type":"ImageService3","width":1613,"height":1933},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"848.1,1840.8 847.9,1933.0 -0.0,1933.0 -0.0,-0.0 1613.0,0.0 1583.0,837.7 1533.4,835.9 1479.7,1879.2 848.1,1840.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801949:00180_1949-0020/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-110.9798113201388,32.226224088464654]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-110.97659941336164,32.22706947576844]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,1933.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-110.97541022853618,32.223790303236264]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1933.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-110.97862213531333,32.22294491593248]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801949:00180_1949-0021/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Tucson, Arizona | 1949 | sanborn00180_008 p21","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T15:05:48Z","modified":"2026-09-21T15:05:48Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801949:00180_1949-0021/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801949:00180_1949-0021","type":"ImageService3","width":1613,"height":1938},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"-0.0,1938.0 -0.0,-0.0 1376.6,0.0 1375.8,33.4 1428.7,38.1 1429.9,1754.2 1161.5,1754.3 1161.5,1938.0 -0.0,1938.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801949:00180_1949-0021/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-110.97813724296005,32.23424304105082]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-110.97469592325119,32.234280497817366]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,1938.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-110.97464309227465,32.23075836703312]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1938.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-110.9780844119835,32.23072091026657]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801949:00180_1949-0022__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 | 1949 | sanborn00180_008 p22 [2]","metadata":[{"label":"streets","value":"8"},{"label":"intersections","value":"8"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"6452.0"},{"label":"split_canvas_h","value":"7732.0"}],"created":"2026-09-21T15:05:48Z","modified":"2026-09-21T15:05:48Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801949:00180_1949-0022__2/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801949:00180_1949-0022","type":"ImageService3","width":1613,"height":1933},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1447.3,1786.6 1451.1,1155.5 1613.0,1157.9 1613.0,200.8 1423.5,200.8 1423.5,0.0 1156.2,0.0 1156.1,184.2 -0.0,183.7 69.5,398.9 47.7,640.7 179.6,662.4 244.9,733.5 530.4,1836.5 572.2,1839.2 588.1,1896.2 588.1,1844.2 1096.9,1847.6 1447.3,1786.6\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801949:00180_1949-0022__2/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[364.0,1156.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-110.9772744,32.2289676]}},{"type":"Feature","properties":{"resourceCoords":[1508.0,1156.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-110.9748247,32.2289952]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801949:00180_1949-0023/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Tucson, Arizona | 1949 | sanborn00180_008 p23","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"6"}],"created":"2026-09-21T15:05:48Z","modified":"2026-09-21T15:05:48Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801949:00180_1949-0023/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801949:00180_1949-0023","type":"ImageService3","width":1613,"height":1938},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1518.9,1938.0 -0.0,1938.0 -0.0,16.6 1531.6,28.2 1522.2,1307.2 1613.0,1488.3 1521.9,1487.8 1518.9,1938.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801949:00180_1949-0023/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[451.0,742.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-110.9740993,32.2329071]}},{"type":"Feature","properties":{"resourceCoords":[1526.0,742.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-110.9717919,32.2329332]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801949:00180_1949-0024/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Tucson, Arizona | 1949 | sanborn00180_008 p24","metadata":[{"label":"streets","value":"7"},{"label":"intersections","value":"9"}],"created":"2026-09-21T15:05:48Z","modified":"2026-09-21T15:05:48Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801949:00180_1949-0024/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801949:00180_1949-0024","type":"ImageService3","width":1613,"height":1933},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"677.9,1858.9 -0.0,1862.7 -0.0,1170.6 162.6,1172.0 156.8,210.6 1495.0,202.4 1495.6,1744.7 678.0,1743.6 677.9,1858.9\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801949:00180_1949-0024/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1494.0,446.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-110.9717711,32.2303218]}},{"type":"Feature","properties":{"resourceCoords":[417.0,446.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-110.9740684,32.2303076]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801949:00180_1949-0025/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Tucson, Arizona | 1949 | sanborn00180_008 p25","metadata":[{"label":"streets","value":"10"},{"label":"intersections","value":"13"}],"created":"2026-09-21T15:05:48Z","modified":"2026-09-21T15:05:48Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801949:00180_1949-0025/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801949:00180_1949-0025","type":"ImageService3","width":1613,"height":1938},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"275.8,1140.7 80.5,371.2 -0.0,380.3 -0.0,-0.0 1613.0,0.0 1613.0,777.5 1504.7,811.7 1503.8,942.8 1613.0,1479.4 875.1,1553.6 940.4,1811.1 417.4,1915.1 229.8,1152.6 275.8,1140.7\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801949:00180_1949-0025/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1041.0,947.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-110.9744836,32.2260076]}},{"type":"Feature","properties":{"resourceCoords":[743.0,1021.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-110.9751309,32.2258632]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801949:00180_1949-0026/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Tucson, Arizona | 1949 | sanborn00180_008 p26","metadata":[{"label":"streets","value":"11"},{"label":"intersections","value":"16"}],"created":"2026-09-21T15:05:48Z","modified":"2026-09-21T15:05:48Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801949:00180_1949-0026/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801949:00180_1949-0026","type":"ImageService3","width":1613,"height":1927},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"108.0,888.8 102.7,112.2 -0.0,112.9 -0.0,-0.0 736.3,0.0 729.5,890.2 801.6,890.2 793.0,1575.2 109.4,1574.2 -0.0,1054.7 -0.0,921.7 108.0,888.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801949:00180_1949-0026/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[444.0,1572.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-110.9725034,32.2250776]}},{"type":"Feature","properties":{"resourceCoords":[802.0,858.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-110.971733,32.2263974]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801949:00180_1949-0027/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Tucson, Arizona | 1949 | sanborn00180_008 p27","metadata":[{"label":"streets","value":"5"},{"label":"intersections","value":"7"}],"created":"2026-09-21T15:05:48Z","modified":"2026-09-21T15:05:48Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801949:00180_1949-0027/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801949:00180_1949-0027","type":"ImageService3","width":1613,"height":1938},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"452.9,1928.3 99.9,1938.0 75.5,819.3 98.5,780.7 189.9,780.6 97.4,599.3 97.2,31.7 456.6,33.9 457.3,0.0 1535.5,30.6 1539.8,1736.4 451.9,1736.4 452.9,1928.3\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801949:00180_1949-0027/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[98.0,1476.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-110.9717711,32.2303218]}},{"type":"Feature","properties":{"resourceCoords":[1541.0,1476.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-110.9686871,32.2303379]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801949:00180_1949-0028/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Tucson, Arizona | 1949 | sanborn00180_008 p28","metadata":[{"label":"streets","value":"4"},{"label":"intersections","value":"9"}],"created":"2026-09-21T15:05:48Z","modified":"2026-09-21T15:05:48Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801949:00180_1949-0028/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801949:00180_1949-0028","type":"ImageService3","width":1613,"height":1927},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"420.8,200.0 419.8,0.0 1498.8,0.0 1497.7,201.7 1613.0,202.1 1613.0,1901.0 158.4,1927.0 73.3,1894.5 72.9,1927.0 -0.0,1927.0 -0.0,1027.2 71.9,1027.2 70.6,196.0 420.8,200.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801949:00180_1949-0028/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[782.0,466.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-110.9702247,32.2290095]}},{"type":"Feature","properties":{"resourceCoords":[1496.0,466.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-110.9686861,32.2290175]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801949:00180_1949-0029/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Tucson, Arizona | 1949 | sanborn00180_008 p29","metadata":[{"label":"streets","value":"5"},{"label":"intersections","value":"8"}],"created":"2026-09-21T15:05:48Z","modified":"2026-09-21T15:05:48Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801949:00180_1949-0029/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801949:00180_1949-0029","type":"ImageService3","width":1613,"height":1938},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"86.1,1938.0 79.0,759.8 1512.5,757.2 1514.2,1938.0 86.1,1938.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801949:00180_1949-0029/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[796.0,1476.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-110.9671647,32.2303424]}},{"type":"Feature","properties":{"resourceCoords":[796.0,40.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-110.967174,32.23295]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801949:00180_1949-0003/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Tucson, Arizona | 1949 | sanborn00180_008 p3","metadata":[{"label":"streets","value":"9"},{"label":"intersections","value":"13"}],"created":"2026-09-21T15:05:48Z","modified":"2026-09-21T15:05:48Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801949:00180_1949-0003/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801949:00180_1949-0003","type":"ImageService3","width":1613,"height":1912},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"-0.0,468.8 92.3,463.9 66.4,196.4 825.6,212.2 1500.0,316.1 1461.6,1551.6 -0.0,1651.3 -0.0,468.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801949:00180_1949-0003/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[118.0,730.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-110.9745405,32.2239424]}},{"type":"Feature","properties":{"resourceCoords":[1480.0,739.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-110.9716446,32.2243097]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801949:00180_1949-0030/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Tucson, Arizona | 1949 | sanborn00180_008 p30","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"5"}],"created":"2026-09-21T15:05:48Z","modified":"2026-09-21T15:05:48Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801949:00180_1949-0030/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801949:00180_1949-0030","type":"ImageService3","width":1613,"height":1924},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"52.5,1872.0 53.8,1182.9 1502.8,1163.1 1501.3,1877.0 52.5,1872.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801949:00180_1949-0030/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[419.0,1147.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-110.9679431,32.2329479]}},{"type":"Feature","properties":{"resourceCoords":[1502.0,1148.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-110.9656423,32.2329622]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801949:00180_1949-0031/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Tucson, Arizona | 1949 | sanborn00180_008 p31","metadata":[{"label":"streets","value":"7"},{"label":"intersections","value":"9"}],"created":"2026-09-21T15:05:48Z","modified":"2026-09-21T15:05:48Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801949:00180_1949-0031/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801949:00180_1949-0031","type":"ImageService3","width":1613,"height":1938},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"468.6,53.5 468.2,0.0 1547.7,0.0 1558.4,1752.6 108.5,1773.2 110.0,54.0 468.6,53.5\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801949:00180_1949-0031/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1557.0,1490.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-110.9625467,32.2303683]}},{"type":"Feature","properties":{"resourceCoords":[110.0,54.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-110.9656423,32.2329622]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801949:00180_1949-0032/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Tucson, Arizona | 1949 | sanborn00180_008 p32","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T15:05:48Z","modified":"2026-09-21T15:05:48Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801949:00180_1949-0032/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801949:00180_1949-0032","type":"ImageService3","width":1613,"height":1924},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"60.1,1877.5 61.8,1707.6 -0.0,1707.2 -0.0,189.2 61.9,163.1 64.3,0.0 1509.7,0.0 1496.5,1147.3 1613.0,1148.3 1613.0,1197.9 1423.5,1196.2 1417.8,1836.0 60.1,1877.5\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801949:00180_1949-0032/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-110.96578014407123,32.229852192141614]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-110.96232171716521,32.22989638320088]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,1924.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-110.96225984204278,32.22638208716604]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1924.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-110.9657182689488,32.22633789610677]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801949:00180_1949-0033/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Tucson, Arizona | 1949 | sanborn00180_008 p33","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T15:05:48Z","modified":"2026-09-21T15:05:48Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801949:00180_1949-0033/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801949:00180_1949-0033","type":"ImageService3","width":1613,"height":1938},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"99.0,33.1 1563.0,0.0 1547.5,1778.2 461.4,1756.6 458.4,1938.0 102.1,1938.0 99.0,33.1\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801949:00180_1949-0033/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-110.96277897143715,32.23303616360564]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-110.95937078612452,32.23305600563444]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,1938.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-110.95934280071248,32.22956768512691]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1938.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-110.9627509860251,32.22954784309811]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801949:00180_1949-0034/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Tucson, Arizona | 1949 | sanborn00180_008 p34","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"0"}],"created":"2026-09-21T15:05:48Z","modified":"2026-09-21T15:05:48Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801949:00180_1949-0034/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801949:00180_1949-0034","type":"ImageService3","width":1613,"height":1924},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"188.9,1171.8 199.8,1122.1 72.3,1122.1 77.7,159.5 427.7,159.1 430.1,0.0 1497.5,0.0 1516.3,523.9 1463.7,1841.0 0.4,1848.4 -0.0,1171.9 188.9,1171.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801949:00180_1949-0034/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-110.9627043,32.2298384]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-110.9592351,32.2298558]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,1924.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-110.9592107,32.2263553]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1924.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-110.9626799,32.2263379]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801949:00180_1949-0035/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Tucson, Arizona | 1949 | sanborn00180_008 p35","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T15:05:48Z","modified":"2026-09-21T15:05:48Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801949:00180_1949-0035/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801949:00180_1949-0035","type":"ImageService3","width":1613,"height":1938},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1387.2,0.0 1382.1,1938.0 106.1,1938.0 120.7,42.7 1387.2,0.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801949:00180_1949-0035/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-110.95973635507896,32.23306952479537]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-110.95630588607453,32.233098606495325]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,1938.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-110.95626486891464,32.22958747969244]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1938.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-110.95969533791907,32.229558397992484]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801949:00180_1949-0036/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Tucson, Arizona | 1949 | sanborn00180_008 p36","metadata":[{"label":"streets","value":"5"},{"label":"intersections","value":"12"}],"created":"2026-09-21T15:05:48Z","modified":"2026-09-21T15:05:48Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801949:00180_1949-0036/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801949:00180_1949-0036","type":"ImageService3","width":1613,"height":1938},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"39.1,1847.5 75.2,148.8 1351.5,140.8 1358.9,661.0 1516.4,952.3 1507.7,1061.6 1420.8,1152.3 1505.2,1152.3 1526.0,1878.0 39.1,1847.5\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801949:00180_1949-0036/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[796.0,1878.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-110.9579233,32.2264549]}},{"type":"Feature","properties":{"resourceCoords":[1526.0,1878.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-110.9563711,32.2264598]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801949:00180_1949-0037/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Tucson, Arizona | 1949 | sanborn00180_008 p37","metadata":[{"label":"streets","value":"7"},{"label":"intersections","value":"13"}],"created":"2026-09-21T15:05:48Z","modified":"2026-09-21T15:05:48Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801949:00180_1949-0037/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801949:00180_1949-0037","type":"ImageService3","width":1613,"height":1970},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"175.0,1756.0 156.3,1021.6 70.9,1021.3 159.1,929.8 168.3,819.2 9.8,524.0 1.4,0.0 1613.0,0.0 1613.0,1756.6 175.0,1756.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801949:00180_1949-0037/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[913.0,1756.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-110.9548205,32.2264689]}},{"type":"Feature","properties":{"resourceCoords":[175.0,1756.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-110.9563711,32.2264598]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801949:00180_1949-0038/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Tucson, Arizona | 1949 | sanborn00180_008 p38","metadata":[{"label":"streets","value":"8"},{"label":"intersections","value":"9"}],"created":"2026-09-21T15:05:48Z","modified":"2026-09-21T15:05:48Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801949:00180_1949-0038/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801949:00180_1949-0038","type":"ImageService3","width":1613,"height":1935},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"735.8,1240.6 51.7,1255.3 54.0,172.0 171.1,171.9 171.5,0.0 1488.2,0.0 1485.2,1356.2 1513.3,1474.5 1501.8,1588.5 1449.8,1614.3 1405.2,1935.0 735.8,1240.6\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801949:00180_1949-0038/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1486.0,884.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-110.9655816,32.2251306]}},{"type":"Feature","properties":{"resourceCoords":[54.0,172.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-110.9686661,32.2264008]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801949:00180_1949-0039/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Tucson, Arizona | 1949 | sanborn00180_008 p39","metadata":[{"label":"streets","value":"7"},{"label":"intersections","value":"8"}],"created":"2026-09-21T15:05:48Z","modified":"2026-09-21T15:05:48Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801949:00180_1949-0039/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801949:00180_1949-0039","type":"ImageService3","width":1613,"height":1970},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"100.8,1478.2 97.7,40.8 1473.9,0.0 1470.1,771.7 1544.0,772.0 1531.5,1775.7 23.2,1774.7 50.4,1476.4 100.8,1478.2\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801949:00180_1949-0039/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[814.0,772.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-110.9640517,32.2251368]}},{"type":"Feature","properties":{"resourceCoords":[1544.0,772.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-110.9625065,32.225158]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801949:00180_1949-0004/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Tucson, Arizona | 1949 | sanborn00180_008 p4","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T15:05:48Z","modified":"2026-09-21T15:05:48Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801949:00180_1949-0004/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801949:00180_1949-0004","type":"ImageService3","width":1613,"height":1921},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"255.5,1897.7 139.0,1053.0 122.5,0.0 1553.9,4.2 1543.5,1605.6 255.5,1897.7\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801949:00180_1949-0004/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-110.9720169710785,32.22632498378708]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-110.96853835804681,32.2263631303376]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,1921.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-110.96848503162589,32.2228336972698]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1921.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-110.97196364465758,32.222795550719276]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801949:00180_1949-0040/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Tucson, Arizona | 1949 | sanborn00180_008 p40","metadata":[{"label":"streets","value":"11"},{"label":"intersections","value":"10"}],"created":"2026-09-21T15:05:48Z","modified":"2026-09-21T15:05:48Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801949:00180_1949-0040/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801949:00180_1949-0040","type":"ImageService3","width":1613,"height":1935},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"165.0,1176.8 162.2,986.2 -0.0,820.6 -0.0,-0.0 1458.8,0.0 1458.1,173.6 1523.2,171.5 1520.0,465.0 1410.6,463.1 1384.0,1361.5 1613.0,1587.7 1613.0,1935.0 1293.5,1935.0 1222.4,1849.3 1058.9,1911.7 183.1,1935.0 190.5,1179.8 165.0,1176.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801949:00180_1949-0040/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[73.0,1176.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-110.965544,32.2212081]}},{"type":"Feature","properties":{"resourceCoords":[1520.0,465.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-110.9624942,32.2225259]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801949:00180_1949-0041/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Tucson, Arizona | 1949 | sanborn00180_008 p41","metadata":[{"label":"streets","value":"7"},{"label":"intersections","value":"9"}],"created":"2026-09-21T15:05:48Z","modified":"2026-09-21T15:05:48Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801949:00180_1949-0041/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801949:00180_1949-0041","type":"ImageService3","width":1613,"height":1970},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"-0.0,758.1 -0.0,-0.0 1530.1,0.0 1530.2,0.0 1613.0,0.0 1578.9,94.0 1531.3,93.6 1548.7,1503.3 1453.7,1503.5 1478.2,1571.7 1548.0,1577.0 1544.4,1970.0 -0.0,1970.0 -0.0,1790.7 68.5,1790.4 76.0,758.0 -0.0,758.1\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801949:00180_1949-0041/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[76.0,758.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-110.9625065,32.225158]}},{"type":"Feature","properties":{"resourceCoords":[1549.0,867.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-110.9594745,32.2249966]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801949:00180_1949-0042/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Tucson, Arizona | 1949 | sanborn00180_008 p42","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T15:05:48Z","modified":"2026-09-21T15:05:48Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801949:00180_1949-0042/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801949:00180_1949-0042","type":"ImageService3","width":1613,"height":1941},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"-0.0,441.6 107.8,440.6 103.5,155.7 1512.7,124.9 1532.0,1941.0 190.9,1941.0 190.2,1877.4 237.7,1876.2 229.1,1554.1 -0.0,1323.5 -0.0,441.6\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801949:00180_1949-0042/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-110.96271621394509,32.22333706378043]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-110.95923974069359,32.22330461934311]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,1941.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-110.9592855666038,32.21974051528697]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1941.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-110.96276203985529,32.21977295972429]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801949:00180_1949-0043/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Tucson, Arizona | 1949 | sanborn00180_008 p43","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T15:05:48Z","modified":"2026-09-21T15:05:48Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801949:00180_1949-0043/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801949:00180_1949-0043","type":"ImageService3","width":1613,"height":1970},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"70.2,1463.9 71.3,88.4 119.5,89.4 121.5,25.4 1582.2,60.6 1536.1,1896.7 60.8,1870.2 68.5,1535.8 -0.0,1529.6 13.3,1463.5 70.2,1463.9\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801949:00180_1949-0043/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-110.95968543102511,32.226496211488296]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-110.9563097815549,32.22656925359453]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,1970.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-110.95620506865886,32.22305693278055]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1970.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-110.95958071812906,32.222983890674314]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801949:00180_1949-0044/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Tucson, Arizona | 1949 | sanborn00180_008 p44","metadata":[{"label":"streets","value":"8"},{"label":"intersections","value":"18"}],"created":"2026-09-21T15:05:48Z","modified":"2026-09-21T15:05:48Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801949:00180_1949-0044/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801949:00180_1949-0044","type":"ImageService3","width":1613,"height":1936},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1513.0,47.5 1518.2,1492.0 1412.9,1491.1 1412.2,1582.0 1613.0,1583.4 1613.0,1936.0 50.5,1933.4 70.0,43.8 1513.0,47.5\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801949:00180_1949-0044/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[798.0,404.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-110.9578927,32.2225255]}},{"type":"Feature","properties":{"resourceCoords":[66.0,1485.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-110.9594364,32.2205545]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801949:00180_1949-0045/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Tucson, Arizona | 1949 | sanborn00180_008 p45","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T15:05:48Z","modified":"2026-09-21T15:05:48Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801949:00180_1949-0045/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801949:00180_1949-0045","type":"ImageService3","width":1613,"height":1970},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1523.0,1748.7 38.9,1701.0 73.1,248.7 1547.5,274.1 1523.0,1748.7\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801949:00180_1949-0045/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-110.9565372359636,32.22690211908301]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-110.95314592671404,32.22697065234881]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,1970.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-110.95304767725155,32.2234420529443]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1970.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-110.9564389865011,32.223373519678496]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801949:00180_1949-0046/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Tucson, Arizona | 1949 | sanborn00180_008 p46","metadata":[{"label":"streets","value":"9"},{"label":"intersections","value":"16"}],"created":"2026-09-21T15:05:48Z","modified":"2026-09-21T15:05:48Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801949:00180_1949-0046/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801949:00180_1949-0046","type":"ImageService3","width":1613,"height":1936},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"104.4,1846.1 89.7,46.0 1535.6,62.5 1534.0,1580.9 1613.0,1580.6 1613.0,1936.0 -0.0,1936.0 -0.0,1845.9 104.4,1846.1\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801949:00180_1949-0046/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[810.0,768.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-110.9548105,32.2225417]}},{"type":"Feature","properties":{"resourceCoords":[94.0,768.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-110.9563568,32.2225379]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801949:00180_1949-0047/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Tucson, Arizona | 1949 | sanborn00180_008 p47","metadata":[{"label":"streets","value":"8"},{"label":"intersections","value":"8"}],"created":"2026-09-21T15:05:48Z","modified":"2026-09-21T15:05:48Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801949:00180_1949-0047/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801949:00180_1949-0047","type":"ImageService3","width":1613,"height":1970},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"-0.0,500.6 834.8,493.1 837.5,-0.0 1568.0,-0.0 1556.9,1898.7 -0.0,1897.7 -0.0,500.6\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801949:00180_1949-0047/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1557.0,796.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-110.9510126,32.2264912]}},{"type":"Feature","properties":{"resourceCoords":[1557.0,1861.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-110.9532699,32.2264768]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801949:00180_1949-0048/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Tucson, Arizona | 1949 | sanborn00180_008 p48","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T15:05:48Z","modified":"2026-09-21T15:05:48Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801949:00180_1949-0048/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801949:00180_1949-0048","type":"ImageService3","width":1613,"height":1902},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1529.3,1808.6 93.5,1802.4 109.7,74.5 904.4,80.3 905.3,-0.0 1540.2,-0.0 1529.3,1808.6\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801949:00180_1949-0048/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-110.94937905085774,32.22668669656117]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-110.94933932357536,32.223718501403205]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,1902.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-110.95344765582396,32.2236785926609]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1902.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-110.95348738310635,32.226646787818865]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801949:00180_1949-0049/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Tucson, Arizona | 1949 | sanborn00180_008 p49","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T15:05:48Z","modified":"2026-09-21T15:05:48Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801949:00180_1949-0049/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801949:00180_1949-0049","type":"ImageService3","width":1613,"height":1977},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"65.8,1856.0 64.5,123.1 1613.0,132.2 1613.0,1863.0 65.8,1856.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801949:00180_1949-0049/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-110.94934290289619,32.22397371697325]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-110.94932125609857,32.221081681830505]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,1977.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-110.9534818969991,32.22105907802339]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1977.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-110.95350354379671,32.22395111316613]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801949:00180_1949-0050__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 | 1949 | sanborn00180_008 p50 [2]","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"split_canvas_x","value":"3466.4"},{"label":"split_canvas_y","value":"4794.0"},{"label":"split_canvas_w","value":"2985.6"},{"label":"split_canvas_h","value":"2814.0"}],"created":"2026-09-21T15:05:48Z","modified":"2026-09-21T15:05:48Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801949:00180_1949-0050__2/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801949:00180_1949-0050","type":"ImageService3","width":1613,"height":1902},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1613.0,1206.5 866.6,1198.5 868.4,1902.0 1613.0,1902.0 1613.0,1206.5\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801949:00180_1949-0050__2/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[866.6,1198.5],"type":"corner"},"geometry":{"type":"Point","coordinates":[-110.9863620190623,32.22578447246008]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,1198.5],"type":"corner"},"geometry":{"type":"Point","coordinates":[-110.98478651769084,32.22592628152271]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,1902.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-110.9846296406105,32.224661348913614]}},{"type":"Feature","properties":{"resourceCoords":[866.6,1902.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-110.98620514198197,32.22451953985098]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801949:00180_1949-0051/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Tucson, Arizona | 1949 | sanborn00180_008 p51","metadata":[{"label":"streets","value":"11"},{"label":"intersections","value":"27"}],"created":"2026-09-21T15:05:48Z","modified":"2026-09-21T15:05:48Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801949:00180_1949-0051/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801949:00180_1949-0051","type":"ImageService3","width":1613,"height":1977},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"628.4,0.0 628.4,61.4 1613.0,59.1 1613.0,1916.6 630.8,1922.0 630.6,1944.5 -0.0,1945.4 0.0,0.0 628.4,0.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801949:00180_1949-0051/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[632.0,1196.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-110.9567872,32.2386018]}},{"type":"Feature","properties":{"resourceCoords":[986.0,348.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-110.9553157,32.2416072]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801949:00180_1949-0052/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Tucson, Arizona | 1949 | sanborn00180_008 p52","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T15:05:48Z","modified":"2026-09-21T15:05:48Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801949:00180_1949-0052/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801949:00180_1949-0052","type":"ImageService3","width":1613,"height":1902},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"806.9,1734.5 34.5,1727.2 58.1,0.0 1613.0,13.1 1613.0,1530.2 1481.6,1529.5 1481.7,1829.1 806.1,1823.1 806.9,1734.5\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801949:00180_1949-0052/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-110.95703616671305,32.23602565887643]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-110.94996647820298,32.236124022557505]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,1902.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-110.94983032022859,32.229022617896874]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1902.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-110.95690000873866,32.2289242542158]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801949:00180_1949-0053__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 | 1949 | sanborn00180_008 p53 [1]","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"6"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"6452.0"},{"label":"split_canvas_h","value":"7908.0"}],"created":"2026-09-21T15:05:48Z","modified":"2026-09-21T15:05:48Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801949:00180_1949-0053__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801949:00180_1949-0053","type":"ImageService3","width":1613,"height":1977},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"50.1,1782.8 348.7,1725.0 1532.7,1693.0 1465.0,620.9 739.9,687.0 677.1,0.0 0.0,-0.0 -0.0,1162.3 326.6,1165.9 -0.0,1329.0 2.3,1977.0 50.1,1782.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801949:00180_1949-0053__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[924.0,1124.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-110.9733405,32.2169276]}},{"type":"Feature","properties":{"resourceCoords":[981.0,1700.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-110.9731539,32.2159193]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801949:00180_1949-0053__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 | 1949 | sanborn00180_008 p53 [2]","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"split_canvas_x","value":"4154.0"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"2298.0"},{"label":"split_canvas_h","value":"1286.0"}],"created":"2026-09-21T15:05:48Z","modified":"2026-09-21T15:05:48Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801949:00180_1949-0053__2/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801949:00180_1949-0053","type":"ImageService3","width":1613,"height":1977},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1613.0,272.9 1365.6,170.3 1433.6,0.0 1038.5,0.0 1038.5,321.5 1613.0,298.3 1613.0,272.9\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801949:00180_1949-0053__2/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[1038.5,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-110.97603756674863,32.216796362277805]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-110.97493564429669,32.21723472737343]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,321.5],"type":"corner"},"geometry":{"type":"Point","coordinates":[-110.97464751680081,32.21670897850354]}},{"type":"Feature","properties":{"resourceCoords":[1038.5,321.5],"type":"corner"},"geometry":{"type":"Point","coordinates":[-110.97574943925275,32.216270613407914]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801949:00180_1949-0054/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Tucson, Arizona | 1949 | sanborn00180_008 p54","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T15:05:48Z","modified":"2026-09-21T15:05:48Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801949:00180_1949-0054/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801949:00180_1949-0054","type":"ImageService3","width":1613,"height":1894},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1555.7,1679.2 -0.0,1627.0 -0.0,583.9 50.7,349.0 363.4,281.6 1464.7,222.0 1555.7,1679.2\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801949:00180_1949-0054/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-110.97521077977103,32.21632593992054]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-110.97169716528883,32.216406053626784]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,1894.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-110.97158675771267,32.21289082747078]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1894.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-110.97510037219487,32.21281071376453]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801949:00180_1949-0055/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Tucson, Arizona | 1949 | sanborn00180_008 p55","metadata":[{"label":"streets","value":"11"},{"label":"intersections","value":"15"}],"created":"2026-09-21T15:05:48Z","modified":"2026-09-21T15:05:48Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801949:00180_1949-0055/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801949:00180_1949-0055","type":"ImageService3","width":1613,"height":1977},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"70.3,72.8 1537.6,69.0 1539.0,839.8 1461.8,851.7 1516.6,1694.2 242.4,1840.5 125.5,551.6 75.6,553.0 70.3,72.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801949:00180_1949-0055/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1537.0,437.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-110.9693555,32.2159579]}},{"type":"Feature","properties":{"resourceCoords":[804.0,437.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-110.9693607,32.2172659]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801949:00180_1949-0056/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Tucson, Arizona | 1949 | sanborn00180_008 p56","metadata":[{"label":"streets","value":"10"},{"label":"intersections","value":"14"}],"created":"2026-09-21T15:05:48Z","modified":"2026-09-21T15:05:48Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801949:00180_1949-0056/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801949:00180_1949-0056","type":"ImageService3","width":1613,"height":1894},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"124.7,135.1 1527.7,155.7 1530.8,1594.7 77.3,1693.1 38.9,884.4 113.1,874.2 124.7,135.1\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801949:00180_1949-0056/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[821.0,779.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-110.9699623,32.2146388]}},{"type":"Feature","properties":{"resourceCoords":[118.0,488.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-110.9693555,32.2159579]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801949:00180_1949-0057/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Tucson, Arizona | 1949 | sanborn00180_008 p57","metadata":[{"label":"streets","value":"8"},{"label":"intersections","value":"14"}],"created":"2026-09-21T15:05:48Z","modified":"2026-09-21T15:05:48Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801949:00180_1949-0057/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801949:00180_1949-0057","type":"ImageService3","width":1613,"height":1977},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"86.4,1740.8 76.9,256.2 1613.0,245.4 1613.0,1725.2 86.4,1740.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801949:00180_1949-0057/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1189.0,1728.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-110.9662807,32.2159809]}},{"type":"Feature","properties":{"resourceCoords":[84.0,995.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-110.9685835,32.2172744]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801949:00180_1949-0058/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Tucson, Arizona | 1949 | sanborn00180_008 p58","metadata":[{"label":"streets","value":"7"},{"label":"intersections","value":"12"}],"created":"2026-09-21T15:05:48Z","modified":"2026-09-21T15:05:48Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801949:00180_1949-0058/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801949:00180_1949-0058","type":"ImageService3","width":1613,"height":1891},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1522.0,1642.9 128.0,1654.0 114.4,256.1 1507.4,236.4 1522.0,1642.9\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801949:00180_1949-0058/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1165.0,944.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-110.9662653,32.2146674]}},{"type":"Feature","properties":{"resourceCoords":[128.0,1654.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-110.96856,32.2133483]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801949:00180_1949-0059/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Tucson, Arizona | 1949 | sanborn00180_008 p59","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"6"}],"created":"2026-09-21T15:05:48Z","modified":"2026-09-21T15:05:48Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801949:00180_1949-0059/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801949:00180_1949-0059","type":"ImageService3","width":1613,"height":1977},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1073.0,1977.0 182.0,1977.0 182.6,792.6 238.3,792.1 234.4,97.2 474.6,87.1 474.5,69.5 1107.9,60.4 1273.8,0.0 1345.1,80.0 1613.0,75.9 1613.0,1768.7 1071.3,1782.4 1073.0,1977.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801949:00180_1949-0059/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[489.0,1520.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-110.9647431,32.2172852]}},{"type":"Feature","properties":{"resourceCoords":[118.0,783.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-110.9655329,32.2186124]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801949:00180_1949-0005__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 | 1949 | sanborn00180_008 p5 [1]","metadata":[{"label":"streets","value":"5"},{"label":"intersections","value":"7"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"3777.6"},{"label":"split_canvas_w","value":"6452.0"},{"label":"split_canvas_h","value":"3870.4"}],"created":"2026-09-21T15:05:48Z","modified":"2026-09-21T15:05:48Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801949:00180_1949-0005__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801949:00180_1949-0005","type":"ImageService3","width":1613,"height":1912},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1192.5,1602.0 1580.5,1554.5 1494.0,1122.3 -0.0,1408.4 -0.0,1912.0 199.0,1912.0 140.4,1652.7 730.9,1519.5 1192.5,1602.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801949:00180_1949-0005__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1006.0,1580.1],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-110.972424,32.2210669]}},{"type":"Feature","properties":{"resourceCoords":[1494.0,1122.3],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-110.9712569,32.2218628]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801949:00180_1949-0005__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 | 1949 | sanborn00180_008 p5 [2]","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"8"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"6452.0"},{"label":"split_canvas_h","value":"3826.8"}],"created":"2026-09-21T15:05:48Z","modified":"2026-09-21T15:05:48Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801949:00180_1949-0005__2/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801949:00180_1949-0005","type":"ImageService3","width":1613,"height":1912},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1494.4,768.3 1474.0,228.3 278.1,381.6 293.4,796.6 1494.4,768.3\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801949:00180_1949-0005__2/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[971.0,777.8],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-110.9723833,32.2217535]}},{"type":"Feature","properties":{"resourceCoords":[1474.0,227.9],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-110.9714133,32.2228444]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801949:00180_1949-0060/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Tucson, Arizona | 1949 | sanborn00180_008 p60","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T15:05:48Z","modified":"2026-09-21T15:05:48Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801949:00180_1949-0060/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801949:00180_1949-0060","type":"ImageService3","width":1613,"height":1891},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"81.4,1840.1 107.4,422.6 156.6,424.4 163.2,167.2 1035.1,189.2 1038.2,0.0 1613.0,0.0 1613.0,1871.5 81.4,1840.1\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801949:00180_1949-0060/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-110.96576051044126,32.21676413890689]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-110.96225422732752,32.216839601763596]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,1891.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-110.96215039348661,32.21333728336538]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1891.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-110.96565667660035,32.21326182050867]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801949:00180_1949-0061/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Tucson, Arizona | 1949 | sanborn00180_008 p61","metadata":[{"label":"streets","value":"8"},{"label":"intersections","value":"7"}],"created":"2026-09-21T15:05:48Z","modified":"2026-09-21T15:05:48Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801949:00180_1949-0061/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801949:00180_1949-0061","type":"ImageService3","width":1613,"height":1977},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"-0.0,1847.8 -0.0,-0.0 1296.3,34.9 1328.0,1792.5 -0.0,1847.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801949:00180_1949-0061/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[672.0,55.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-110.9762097,32.2133006]}},{"type":"Feature","properties":{"resourceCoords":[1412.0,1508.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-110.974685,32.2106953]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801949:00180_1949-0062/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Tucson, Arizona | 1949 | sanborn00180_008 p62","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T15:05:48Z","modified":"2026-09-21T15:05:48Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801949:00180_1949-0062/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801949:00180_1949-0062","type":"ImageService3","width":1613,"height":1891},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"-0.0,1891.0 0.0,0.0 205.7,0.0 851.5,0.0 1613.0,0.0 1587.8,1150.5 1534.5,1146.9 1550.5,1855.2 1334.7,1847.5 1334.2,1891.0 -0.0,1891.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801949:00180_1949-0062/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-110.97811191524569,32.21010664688794]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-110.97463255598656,32.21019572527312]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,1891.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-110.97450999658354,32.20672004919032]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1891.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-110.97798935584267,32.206630970805136]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801949:00180_1949-0063/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Tucson, Arizona | 1949 | sanborn00180_008 p63","metadata":[{"label":"streets","value":"8"},{"label":"intersections","value":"19"}],"created":"2026-09-21T15:05:48Z","modified":"2026-09-21T15:05:48Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801949:00180_1949-0063/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801949:00180_1949-0063","type":"ImageService3","width":1613,"height":1977},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"-0.0,1797.1 -0.0,30.4 1555.5,45.6 1559.6,1752.5 -0.0,1797.1\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801949:00180_1949-0063/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[824.0,768.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-110.9731556,32.2120251]}},{"type":"Feature","properties":{"resourceCoords":[824.0,1508.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-110.9731452,32.2107123]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801949:00180_1949-0064/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Tucson, Arizona | 1949 | sanborn00180_008 p64","metadata":[{"label":"streets","value":"5"},{"label":"intersections","value":"5"}],"created":"2026-09-21T15:05:48Z","modified":"2026-09-21T15:05:48Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801949:00180_1949-0064/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801949:00180_1949-0064","type":"ImageService3","width":1613,"height":1891},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"122.2,1891.0 152.4,1719.3 103.6,1718.1 104.0,1135.5 155.8,1138.7 176.7,0.0 1537.7,0.0 1502.5,1851.2 1613.0,1846.0 1613.0,1891.0 122.2,1891.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801949:00180_1949-0064/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[813.0,1835.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-110.9731119,32.2067991]}},{"type":"Feature","properties":{"resourceCoords":[1520.0,1164.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-110.9715753,32.208095]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801949:00180_1949-0065/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Tucson, Arizona | 1949 | sanborn00180_008 p65","metadata":[{"label":"streets","value":"5"},{"label":"intersections","value":"3"}],"created":"2026-09-21T15:05:48Z","modified":"2026-09-21T15:05:48Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801949:00180_1949-0065/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801949:00180_1949-0065","type":"ImageService3","width":1613,"height":1977},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"112.0,63.6 1555.0,50.0 1559.4,1849.0 122.5,1843.0 112.0,63.6\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801949:00180_1949-0065/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1555.0,777.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-110.968555,32.2120385]}},{"type":"Feature","properties":{"resourceCoords":[1555.0,50.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-110.96856,32.2133483]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801949:00180_1949-0066/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Tucson, Arizona | 1949 | sanborn00180_008 p66","metadata":[{"label":"streets","value":"7"},{"label":"intersections","value":"11"}],"created":"2026-09-21T15:05:48Z","modified":"2026-09-21T15:05:48Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801949:00180_1949-0066/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801949:00180_1949-0066","type":"ImageService3","width":1613,"height":1876},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"108.8,1791.2 97.8,0.0 1498.6,0.0 1529.2,246.4 1531.0,500.4 1502.3,530.6 1520.0,1761.5 108.8,1791.2\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801949:00180_1949-0066/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[809.0,379.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-110.9700449,32.2094088]}},{"type":"Feature","properties":{"resourceCoords":[1512.0,1076.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-110.9685111,32.2081197]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801949:00180_1949-0067/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Tucson, Arizona | 1949 | sanborn00180_008 p67","metadata":[{"label":"streets","value":"7"},{"label":"intersections","value":"11"}],"created":"2026-09-21T15:05:48Z","modified":"2026-09-21T15:05:48Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801949:00180_1949-0067/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801949:00180_1949-0067","type":"ImageService3","width":1613,"height":1977},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"98.2,60.9 1551.0,69.0 1547.9,1829.8 90.7,1833.9 98.2,60.9\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801949:00180_1949-0067/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[91.0,1518.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-110.9685443,32.2107372]}},{"type":"Feature","properties":{"resourceCoords":[1551.0,69.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-110.9654826,32.2133599]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801949:00180_1949-0068/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Tucson, Arizona | 1949 | sanborn00180_008 p68","metadata":[{"label":"streets","value":"8"},{"label":"intersections","value":"17"}],"created":"2026-09-21T15:05:48Z","modified":"2026-09-21T15:05:48Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801949:00180_1949-0068/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801949:00180_1949-0068","type":"ImageService3","width":1613,"height":1882},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"100.6,1798.6 99.8,565.7 129.0,535.9 130.6,281.4 103.8,0.0 1519.2,0.0 1517.6,149.5 1613.0,150.3 1613.0,1882.0 -0.0,1882.0 -0.0,1804.2 100.6,1798.6\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801949:00180_1949-0068/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1159.0,415.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-110.9662257,32.2094305]}},{"type":"Feature","properties":{"resourceCoords":[102.0,1112.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-110.9685111,32.2081197]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801949:00180_1949-0069/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Tucson, Arizona | 1949 | sanborn00180_008 p69","metadata":[{"label":"streets","value":"4"},{"label":"intersections","value":"3"}],"created":"2026-09-21T15:05:48Z","modified":"2026-09-21T15:05:48Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801949:00180_1949-0069/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801949:00180_1949-0069","type":"ImageService3","width":1613,"height":1986},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"99.7,76.1 1613.0,75.0 1613.0,1986.0 1189.3,1986.0 1186.9,1817.0 464.8,1816.7 465.5,1986.0 107.3,1986.0 99.7,76.1\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801949:00180_1949-0069/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[464.0,1530.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-110.9646986,32.2107504]}},{"type":"Feature","properties":{"resourceCoords":[108.0,1530.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-110.9654534,32.210748]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801949:00180_1949-0006__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 | 1949 | sanborn00180_008 p6 [1]","metadata":[{"label":"streets","value":"5"},{"label":"intersections","value":"10"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"3788.4"},{"label":"split_canvas_w","value":"6452.0"},{"label":"split_canvas_h","value":"3895.6"}],"created":"2026-09-21T15:05:48Z","modified":"2026-09-21T15:05:48Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801949:00180_1949-0006__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801949:00180_1949-0006","type":"ImageService3","width":1613,"height":1921},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1434.2,1198.8 194.4,1180.3 212.5,1644.5 1403.0,1644.5 1434.2,1198.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801949:00180_1949-0006__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[212.0,1645.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-110.9711354,32.2210337]}},{"type":"Feature","properties":{"resourceCoords":[1403.0,1645.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-110.9686141,32.221214]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801949:00180_1949-0006__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 | 1949 | sanborn00180_008 p6 [2]","metadata":[{"label":"streets","value":"5"},{"label":"intersections","value":"8"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"6452.0"},{"label":"split_canvas_h","value":"3849.2"}],"created":"2026-09-21T15:05:48Z","modified":"2026-09-21T15:05:48Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801949:00180_1949-0006__2/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801949:00180_1949-0006","type":"ImageService3","width":1613,"height":1921},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1486.2,67.7 183.5,203.0 183.5,741.2 1392.3,819.4 1486.2,67.7\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801949:00180_1949-0006__2/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[184.0,741.2],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-110.9712569,32.2218628]}},{"type":"Feature","properties":{"resourceCoords":[183.0,203.1],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-110.9714133,32.2228444]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801949:00180_1949-0007/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Tucson, Arizona | 1949 | sanborn00180_008 p7","metadata":[{"label":"streets","value":"5"},{"label":"intersections","value":"5"}],"created":"2026-09-21T15:05:48Z","modified":"2026-09-21T15:05:48Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801949:00180_1949-0007/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801949:00180_1949-0007","type":"ImageService3","width":1613,"height":1912},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"719.5,1912.0 -0.0,1912.0 0.0,0.0 643.1,0.0 1102.3,193.6 1515.5,235.0 1523.0,1733.3 728.4,1690.4 719.5,1912.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801949:00180_1949-0007/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1516.0,841.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-110.9709473,32.2199647]}},{"type":"Feature","properties":{"resourceCoords":[1516.0,235.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-110.9711354,32.2210337]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801949:00180_1949-0070__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 | 1949 | sanborn00180_008 p70 [2]","metadata":[{"label":"streets","value":"7"},{"label":"intersections","value":"7"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"6452.0"},{"label":"split_canvas_h","value":"5093.6"}],"created":"2026-09-21T15:05:48Z","modified":"2026-09-21T15:05:48Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801949:00180_1949-0070__2/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801949:00180_1949-0070","type":"ImageService3","width":1613,"height":1909},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"208.8,1272.1 1613.0,1263.1 1613.0,0.0 1580.3,0.0 1580.4,165.8 1164.3,166.0 1162.0,0.0 452.9,0.0 453.7,166.3 198.2,166.4 208.8,1272.1\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801949:00180_1949-0070__2/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[455.0,436.1],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-110.964686,32.2094377]}},{"type":"Feature","properties":{"resourceCoords":[1520.0,436.1],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-110.962383,32.2094441]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801949:00180_1949-0071__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 | 1949 | sanborn00180_008 p71 [3]","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"9"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"2697.6"},{"label":"split_canvas_w","value":"6452.0"},{"label":"split_canvas_h","value":"5222.4"}],"created":"2026-09-21T15:05:48Z","modified":"2026-09-21T15:05:48Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801949:00180_1949-0071__3/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801949:00180_1949-0071","type":"ImageService3","width":1613,"height":1980},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"86.6,1980.0 156.3,1980.0 128.2,1876.1 284.2,1876.6 421.8,1980.0 941.0,1980.0 1240.0,1980.0 1294.3,1980.0 1294.0,1889.0 1613.0,1886.2 1613.0,682.9 912.6,679.2 0.0,674.4 -0.0,1980.0 45.4,1980.0 54.8,1875.8 86.6,1980.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801949:00180_1949-0071__3/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[140.0,701.4],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-110.956502,32.2177849]}},{"type":"Feature","properties":{"resourceCoords":[1294.0,1889.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-110.9539844,32.2156601]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801949:00180_1949-0072/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Tucson, Arizona | 1949 | sanborn00180_008 p72","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T15:05:48Z","modified":"2026-09-21T15:05:48Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801949:00180_1949-0072/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801949:00180_1949-0072","type":"ImageService3","width":1613,"height":1891},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"-0.0,1891.0 0.0,0.0 40.0,100.2 107.7,100.0 80.0,0.0 231.3,0.0 365.1,99.1 1211.5,96.2 1210.8,8.6 1613.0,0.0 1613.0,1891.0 -0.0,1891.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801949:00180_1949-0072/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-110.95666479951774,32.21564853614211]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-110.95309438617738,32.21568545586805]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,1891.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-110.95304358677002,32.21211903459005]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1891.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-110.95661400011038,32.21208211486412]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801949:00180_1949-0073/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Tucson, Arizona | 1949 | sanborn00180_008 p73","metadata":[{"label":"streets","value":"13"},{"label":"intersections","value":"34"}],"created":"2026-09-21T15:05:48Z","modified":"2026-09-21T15:05:48Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801949:00180_1949-0073/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801949:00180_1949-0073","type":"ImageService3","width":1613,"height":1980},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"-0.0,1980.0 -0.0,81.0 183.1,0.0 1613.0,347.4 1613.0,1798.3 1613.0,1980.0 -0.0,1980.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801949:00180_1949-0073/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[906.0,936.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-110.9715498,32.2036572]}},{"type":"Feature","properties":{"resourceCoords":[543.0,1517.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-110.9730758,32.2015908]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801949:00180_1949-0074__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 | 1949 | sanborn00180_008 p74 [1]","metadata":[{"label":"streets","value":"3"},{"label":"intersections","value":"2"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"1834.4"},{"label":"split_canvas_h","value":"2244.8"}],"created":"2026-09-21T15:05:48Z","modified":"2026-09-21T15:05:48Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801949:00180_1949-0074__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801949:00180_1949-0074","type":"ImageService3","width":1613,"height":1902},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"-0.0,-0.0 0.0,560.5 442.6,561.2 458.6,0.0 -0.0,-0.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801949:00180_1949-0074__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[410.6,547.2],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-110.9828234,32.2205648]}},{"type":"Feature","properties":{"resourceCoords":[410.6,26.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-110.9829869,32.2226778]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801949:00180_1949-0074__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 | 1949 | sanborn00180_008 p74 [2]","metadata":[{"label":"streets","value":"8"},{"label":"intersections","value":"12"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"6452.0"},{"label":"split_canvas_h","value":"7608.0"}],"created":"2026-09-21T15:05:48Z","modified":"2026-09-21T15:05:48Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801949:00180_1949-0074__2/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801949:00180_1949-0074","type":"ImageService3","width":1613,"height":1902},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1613.0,1902.0 1613.0,536.0 1065.8,527.1 1077.8,0.0 458.6,0.0 442.6,561.2 0.0,560.5 -0.0,1902.0 1613.0,1902.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801949:00180_1949-0074__2/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1033.0,1294.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-110.988727,32.2222154]}},{"type":"Feature","properties":{"resourceCoords":[1385.0,560.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-110.9875328,32.2250479]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801949:00180_1949-0075/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Tucson, Arizona | 1949 | sanborn00180_008 p75","metadata":[{"label":"streets","value":"8"},{"label":"intersections","value":"13"}],"created":"2026-09-21T15:05:48Z","modified":"2026-09-21T15:05:48Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801949:00180_1949-0075/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801949:00180_1949-0075","type":"ImageService3","width":1613,"height":1972},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1613.0,1921.8 -0.0,1920.8 -0.0,65.8 1613.0,71.0 1613.0,89.2 1487.8,89.2 1488.7,1189.4 1613.0,1190.3 1613.0,1921.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801949:00180_1949-0075/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[894.0,91.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-110.9595263,32.2385877]}},{"type":"Feature","properties":{"resourceCoords":[1260.0,1922.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-110.967212,32.2372427]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801949:00180_1949-0076/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Tucson, Arizona | 1949 | sanborn00180_008 p76","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T15:05:48Z","modified":"2026-09-21T15:05:48Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801949:00180_1949-0076/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801949:00180_1949-0076","type":"ImageService3","width":1613,"height":1906},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"185.4,1514.0 190.3,1115.3 239.6,1116.3 242.8,759.2 -0.0,755.7 -0.0,42.6 2.9,42.7 133.8,43.4 133.8,0.0 471.4,0.0 470.7,41.8 532.9,41.4 532.8,54.9 533.5,66.2 1485.0,64.8 1485.4,766.4 1525.4,766.6 1509.8,1906.0 842.5,1906.0 842.6,1853.8 224.0,1833.2 225.7,1514.6 185.4,1514.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801949:00180_1949-0076/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-110.95043602081901,32.23056171438405]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-110.94349229996509,32.23065952022628]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,1906.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-110.94335663753203,32.22366956318424]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1906.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-110.95030035838596,32.22357175734201]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801949:00180_1949-0077/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Tucson, Arizona | 1949 | sanborn00180_008 p77","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T15:05:48Z","modified":"2026-09-21T15:05:48Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801949:00180_1949-0077/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801949:00180_1949-0077","type":"ImageService3","width":1613,"height":1972},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"-0.0,1944.3 -0.0,7.9 1613.0,0.0 1613.0,1972.0 -0.0,1944.3\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801949:00180_1949-0077/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-110.94839985119846,32.23388975248468]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-110.94503751196488,32.23388485761563]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,1972.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-110.94504453692552,32.23038311841845]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1972.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-110.9484068761591,32.2303880132875]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801949:00180_1949-0078/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Tucson, Arizona | 1949 | sanborn00180_008 p78","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"7"}],"created":"2026-09-21T15:05:48Z","modified":"2026-09-21T15:05:48Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801949:00180_1949-0078/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801949:00180_1949-0078","type":"ImageService3","width":1613,"height":1906},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1613.0,1906.0 193.7,1906.0 206.1,21.5 1368.4,40.1 1371.8,1132.5 1401.0,1171.1 1613.0,1171.7 1613.0,1906.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801949:00180_1949-0078/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[732.0,602.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-110.9438851,32.2328192]}},{"type":"Feature","properties":{"resourceCoords":[1373.0,1171.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-110.942482,32.2317758]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801949:00180_1949-0079/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Tucson, Arizona | 1949 | sanborn00180_008 p79","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"9"}],"created":"2026-09-21T15:05:48Z","modified":"2026-09-21T15:05:48Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801949:00180_1949-0079/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801949:00180_1949-0079","type":"ImageService3","width":1613,"height":1972},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"70.1,69.3 1515.0,16.4 1513.3,1972.0 171.6,1972.0 170.5,1522.4 88.3,1522.9 70.1,69.3\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801949:00180_1949-0079/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[821.0,767.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-110.9424603,32.2291845]}},{"type":"Feature","properties":{"resourceCoords":[157.0,767.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-110.9438496,32.2291798]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801949:00180_1949-0008/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Tucson, Arizona | 1949 | sanborn00180_008 p8","metadata":[{"label":"streets","value":"8"},{"label":"intersections","value":"14"}],"created":"2026-09-21T15:05:48Z","modified":"2026-09-21T15:05:48Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801949:00180_1949-0008/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801949:00180_1949-0008","type":"ImageService3","width":1613,"height":1921},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"922.4,1634.0 440.9,1675.0 238.8,235.7 1398.4,153.2 1386.9,1585.2 921.5,1585.7 922.4,1634.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801949:00180_1949-0008/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1392.0,880.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-110.968607,32.2198757]}},{"type":"Feature","properties":{"resourceCoords":[318.0,817.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-110.9709473,32.2199647]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801949:00180_1949-0080/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Tucson, Arizona | 1949 | sanborn00180_008 p80","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T15:05:48Z","modified":"2026-09-21T15:05:48Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801949:00180_1949-0080/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801949:00180_1949-0080","type":"ImageService3","width":1613,"height":1894},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"52.1,1894.0 74.4,0.0 1427.8,0.0 1420.3,740.6 1613.0,741.7 1613.0,1894.0 52.1,1894.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801949:00180_1949-0080/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-110.94117450701025,32.230516038008766]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-110.93770601804518,32.23056011529034]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,1894.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-110.93764526406474,32.22709057770417]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1894.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-110.94111375302981,32.227046500422595]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801949:00180_1949-0082__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 | 1949 | sanborn00180_008 p82 [1]","metadata":[{"label":"streets","value":"4"},{"label":"intersections","value":"5"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"4380.0"},{"label":"split_canvas_w","value":"1938.8"},{"label":"split_canvas_h","value":"3196.0"}],"created":"2026-09-21T15:05:48Z","modified":"2026-09-21T15:05:48Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801949:00180_1949-0082__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801949:00180_1949-0082","type":"ImageService3","width":1613,"height":1894},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"484.7,1894.0 472.0,1103.8 48.9,1095.9 55.4,1828.5 8.7,1830.5 10.6,1894.0 484.7,1894.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801949:00180_1949-0082__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[44.0,1490.5],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-110.9733679,32.2358714]}},{"type":"Feature","properties":{"resourceCoords":[472.7,1137.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-110.9718003,32.2342295]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801949:00180_1949-0082__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 | 1949 | sanborn00180_008 p82 [2]","metadata":[{"label":"streets","value":"11"},{"label":"intersections","value":"32"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"6452.0"},{"label":"split_canvas_h","value":"7576.0"}],"created":"2026-09-21T15:05:48Z","modified":"2026-09-21T15:05:48Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801949:00180_1949-0082__2/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801949:00180_1949-0082","type":"ImageService3","width":1613,"height":1894},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1584.8,1775.9 1613.0,730.9 1456.2,729.6 1453.8,381.8 1587.0,382.8 1591.2,-0.0 1573.0,-0.0 1572.7,33.8 -0.0,17.9 0.0,1095.0 481.9,1104.0 484.7,1894.0 1613.0,1894.0 1613.0,1843.3 1537.5,1841.4 1537.2,1776.7 1584.8,1775.9\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801949:00180_1949-0082__2/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[878.0,1075.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-110.9718423,32.2385198]}},{"type":"Feature","properties":{"resourceCoords":[883.0,375.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-110.9687536,32.2385416]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801949:00180_1949-0083/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Tucson, Arizona | 1949 | sanborn00180_008 p83","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T15:05:48Z","modified":"2026-09-21T15:05:48Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801949:00180_1949-0083/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801949:00180_1949-0083","type":"ImageService3","width":1613,"height":1958},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1613.0,1565.2 990.0,1570.2 989.8,1958.0 -0.0,1958.0 -0.0,148.2 975.1,131.9 974.5,110.2 1604.8,120.2 1613.0,1565.2\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801949:00180_1949-0083/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-110.94343824237694,32.23964508238733]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-110.9433825894945,32.233903653018814]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,1958.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-110.95156442333301,32.233846107213246]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1958.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-110.95162007621545,32.23958753658176]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801949:00180_1949-0084/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Tucson, Arizona | 1949 | sanborn00180_008 p84","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T15:05:48Z","modified":"2026-09-21T15:05:48Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801949:00180_1949-0084/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801949:00180_1949-0084","type":"ImageService3","width":1613,"height":1894},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"955.3,1873.0 955.5,1894.0 -0.0,1894.0 -0.0,338.8 40.6,339.5 43.9,193.6 919.6,212.9 923.5,-0.0 1000.1,-0.0 972.9,1225.1 1020.1,1225.7 1038.3,552.1 1328.3,560.0 1322.6,898.8 1602.1,899.6 1583.6,1893.1 955.3,1873.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801949:00180_1949-0084/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-110.93585730594648,32.23986935151917]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-110.93568304919995,32.233919372178136]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,1894.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-110.94388493555257,32.23374507814227]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1894.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-110.94405919229911,32.2396950574833]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801949:00180_1949-0085/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Tucson, Arizona | 1949 | sanborn00180_008 p85","metadata":[{"label":"streets","value":"11"},{"label":"intersections","value":"30"}],"created":"2026-09-21T15:05:48Z","modified":"2026-09-21T15:05:48Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801949:00180_1949-0085/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801949:00180_1949-0085","type":"ImageService3","width":1613,"height":1958},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"6.0,1449.7 111.1,1449.2 108.3,854.9 24.8,854.7 9.7,854.8 14.0,138.4 663.6,132.1 668.9,0.0 1613.0,0.0 1613.0,1958.0 4.5,1958.0 6.0,1449.7\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801949:00180_1949-0085/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1017.0,1228.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-110.9338514,32.2279089]}},{"type":"Feature","properties":{"resourceCoords":[1368.0,126.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-110.9324249,32.2318357]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801949:00180_1949-0086/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Tucson, Arizona | 1949 | sanborn00180_008 p86","metadata":[{"label":"streets","value":"8"},{"label":"intersections","value":"0"}],"created":"2026-09-21T15:05:48Z","modified":"2026-09-21T15:05:48Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801949:00180_1949-0086/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801949:00180_1949-0086","type":"ImageService3","width":1613,"height":1894},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"-0.0,1894.0 17.8,14.7 681.5,17.5 681.4,19.9 1370.7,15.2 1370.1,521.3 1613.0,522.4 1613.0,1894.0 -0.0,1894.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801949:00180_1949-0086/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-110.9438849,32.2270991]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-110.9370619,32.2271465]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,1894.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-110.93699600000001,32.22036880000001]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1894.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-110.943819,32.2203214]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801949:00180_1949-0087__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 | 1949 | sanborn00180_008 p87 [1]","metadata":[{"label":"streets","value":"7"},{"label":"intersections","value":"14"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"3829.2"},{"label":"split_canvas_w","value":"2772.0"},{"label":"split_canvas_h","value":"4002.8"}],"created":"2026-09-21T15:05:48Z","modified":"2026-09-21T15:05:48Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801949:00180_1949-0087__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801949:00180_1949-0087","type":"ImageService3","width":1613,"height":1958},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"-0.0,979.3 -0.0,1958.0 686.9,1958.0 691.7,1155.7 692.4,1043.5 678.5,1043.7 677.9,991.3 -0.0,979.3\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801949:00180_1949-0087__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[19.0,1341.2],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-110.9495184,32.2225356]}},{"type":"Feature","properties":{"resourceCoords":[22.0,1914.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-110.9495042,32.2204443]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801949:00180_1949-0087__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 | 1949 | sanborn00180_008 p87 [2]","metadata":[{"label":"streets","value":"11"},{"label":"intersections","value":"34"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"6452.0"},{"label":"split_canvas_h","value":"7832.0"}],"created":"2026-09-21T15:05:48Z","modified":"2026-09-21T15:05:48Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801949:00180_1949-0087__2/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801949:00180_1949-0087","type":"ImageService3","width":1613,"height":1958},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1292.5,25.6 1180.5,26.0 1151.5,18.6 1159.4,-0.0 -0.0,0.0 -0.0,105.5 47.3,104.6 43.5,961.2 94.8,960.9 97.5,677.2 400.8,680.0 401.0,959.0 690.7,957.3 693.0,957.3 692.5,1027.7 693.4,1027.7 692.8,1728.7 1283.7,1727.7 1284.4,1602.3 1613.0,1603.1 1613.0,680.6 1300.8,679.4 1292.5,25.6\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801949:00180_1949-0087__2/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[986.0,1030.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-110.9395808,32.2328442]}},{"type":"Feature","properties":{"resourceCoords":[986.0,679.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-110.9381167,32.2328532]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801949:00180_1949-0088/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Tucson, Arizona | 1949 | sanborn00180_008 p88","metadata":[{"label":"streets","value":"11"},{"label":"intersections","value":"26"}],"created":"2026-09-21T15:05:48Z","modified":"2026-09-21T15:05:48Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801949:00180_1949-0088/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801949:00180_1949-0088","type":"ImageService3","width":1613,"height":1894},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"124.6,1823.5 124.8,1761.5 -0.0,1761.0 -0.0,-0.0 1418.5,0.0 1419.7,56.4 1461.3,56.4 1459.9,1229.5 1613.0,1229.8 1613.0,1894.0 1116.7,1894.0 1116.9,1825.1 124.6,1823.5\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801949:00180_1949-0088/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1169.0,936.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-110.9525088,32.2457621]}},{"type":"Feature","properties":{"resourceCoords":[125.0,936.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-110.9568446,32.2457348]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801949:00180_1949-0089/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Tucson, Arizona | 1949 | sanborn00180_008 p89","metadata":[{"label":"streets","value":"10"},{"label":"intersections","value":"22"}],"created":"2026-09-21T15:05:48Z","modified":"2026-09-21T15:05:48Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801949:00180_1949-0089/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801949:00180_1949-0089","type":"ImageService3","width":1613,"height":1958},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"-0.0,1574.7 108.0,1573.5 108.0,1048.0 102.0,450.1 -0.0,450.3 -0.0,126.0 529.6,113.6 529.1,89.5 1158.3,83.1 1158.8,123.9 1613.0,118.6 1613.0,1958.0 1188.9,1958.0 1189.0,1859.1 849.4,1862.8 849.9,1958.0 479.6,1958.0 478.8,1862.5 -0.0,1866.5 -0.0,1574.7\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801949:00180_1949-0089/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[846.0,1273.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-110.9700077,32.2026514]}},{"type":"Feature","properties":{"resourceCoords":[1213.0,981.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-110.9684826,32.2036805]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801949:00180_1949-0009/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Tucson, Arizona | 1949 | sanborn00180_008 p9","metadata":[{"label":"streets","value":"12"},{"label":"intersections","value":"15"}],"created":"2026-09-21T15:05:48Z","modified":"2026-09-21T15:05:48Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801949:00180_1949-0009/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801949:00180_1949-0009","type":"ImageService3","width":1613,"height":1912},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"812.8,0.0 1465.9,707.3 1455.0,1464.6 1613.0,1631.0 1613.0,1819.3 94.3,1771.3 129.8,0.0 812.8,0.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801949:00180_1949-0009/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[814.0,1786.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-110.9670671,32.2212255]}},{"type":"Feature","properties":{"resourceCoords":[814.0,1313.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-110.9670975,32.222086]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801949:00180_1949-0090/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Tucson, Arizona | 1949 | sanborn00180_008 p90","metadata":[{"label":"streets","value":"11"},{"label":"intersections","value":"29"}],"created":"2026-09-21T15:05:48Z","modified":"2026-09-21T15:05:48Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801949:00180_1949-0090/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801949:00180_1949-0090","type":"ImageService3","width":1613,"height":1894},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1613.0,1751.5 731.4,1748.2 730.9,1894.0 -0.0,1894.0 -0.0,0.0 1613.0,-0.0 1613.0,1751.5\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801949:00180_1949-0090/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[733.0,777.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-110.9324815,32.2397076]}},{"type":"Feature","properties":{"resourceCoords":[733.0,1428.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-110.9353032,32.2396917]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801949:00180_1949-0091/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Tucson, Arizona | 1949 | sanborn00180_008 p91","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T15:05:48Z","modified":"2026-09-21T15:05:48Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801949:00180_1949-0091/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801949:00180_1949-0091","type":"ImageService3","width":1613,"height":1958},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"356.7,1958.0 46.7,1958.0 78.8,493.2 -0.0,20.9 260.2,28.4 260.7,-0.0 1613.0,-0.0 1613.0,1778.7 1595.9,1941.1 357.6,1913.8 356.7,1958.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801949:00180_1949-0091/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-110.94388909580061,32.25022929536152]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-110.94371032001966,32.244865049866995]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,1958.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-110.9513555471944,32.24468021513833]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1958.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-110.95153432297535,32.25004446063286]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801949:00180_1949-0092/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Tucson, Arizona | 1949 | sanborn00180_008 p92","metadata":[{"label":"streets","value":"10"},{"label":"intersections","value":"16"}],"created":"2026-09-21T15:05:48Z","modified":"2026-09-21T15:05:48Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801949:00180_1949-0092/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801949:00180_1949-0092","type":"ImageService3","width":1613,"height":1894},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1454.5,532.1 1449.2,1863.8 1613.0,1860.9 1613.0,1894.0 -0.0,1894.0 -0.0,0.0 1613.0,-0.0 1613.0,108.5 1370.1,103.7 1454.5,532.1\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334tm:g001801949:00180_1949-0092/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[885.0,1124.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-110.9483756,32.2519679]}},{"type":"Feature","properties":{"resourceCoords":[885.0,1815.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-110.951345,32.2519414]}}]}}]}