{"id":"https://data.mapsnap.org/runs/v2.0/iiif/chronoscope/sanborn03275_002.main.iiif.json","type":"AnnotationPage","@context":["http://www.w3.org/ns/anno.jsonld"],"label":"Baton Rouge, Louisiana | 1891 | mapsnap generated fit (2026-10-19)","creator":{"type":"Software","name":"mapsnap","homepage":"https://mapsnap.org"},"rights":"https://opendatacommons.org/licenses/odbl/1-0/","metadata":[{"label":"generated","value":"2026-10-19"},{"label":"run","value":"corpus-v2"},{"label":"pages","value":"24"},{"label":"placed","value":"16"},{"label":"unplaced","value":"8"},{"label":"fit sources","value":"georef-snap 13, georef 3"},{"label":"key map","value":"georeferenced"},{"label":"split sheets","value":"3 sheet(s) cut into 11 panels"},{"label":"unplaced pages","value":"p15__1 (tier 1, 30.44818,-91.17843 +/-131m); p15__3 (tier 1, 30.44885,-91.17742 +/-100m); p16__1 (tier 1, 30.44136,-91.18540 +/-142m); p16__4 (tier 1, 30.45375,-91.18538 +/-100m); p17__1 (tier 1, 30.43949,-91.18874 +/-208m); p17__2 (tier 3, 30.44029,-91.19028 +/-478m); p17__3 (tier 1, 30.44012,-91.18944 +/-110m); p8 (tier 3, 30.44544,-91.18910 +/-100m)"}],"items":[{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014bm:g032751891:03275_1891-0010/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Baton Rouge, Louisiana | 1891 | sanborn03275_002 p10","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.98"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-19T17:34:22Z","modified":"2026-10-19T17:34:22Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014bm:g032751891:03275_1891-0010/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014bm:g032751891:03275_1891-0010","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"80.5,43.5 79.9,686.1 72.2,1247.8 73.3,1811.4 1007.2,1816.1 1570.7,1817.4 1573.8,1255.6 1572.5,695.8 1573.3,560.8 1527.0,1.0 81.0,1.0 80.5,43.5\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014bm:g032751891:03275_1891-0010/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[99.0,686.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-91.18458351905498,30.445980557548154]}},{"type":"Feature","properties":{"resourceCoords":[99.0,1796.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-91.1844977855401,30.443954321759442]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014bm:g032751891:03275_1891-0011/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Baton Rouge, Louisiana | 1891 | sanborn03275_002 p11","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.69"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-19T17:34:22Z","modified":"2026-10-19T17:34:22Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014bm:g032751891:03275_1891-0011/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014bm:g032751891:03275_1891-0011","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1338.6,1843.6 979.8,1799.2 718.9,1879.5 150.5,1873.3 65.5,1813.8 48.9,985.9 119.8,109.5 409.5,30.0 1199.7,91.7 1453.8,73.1 1483.0,343.0 1514.5,342.4 1487.8,427.1 1486.9,628.4 1495.7,1717.4 1493.3,1780.9 1338.6,1843.6\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014bm:g032751891:03275_1891-0011/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1021.0,625.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-91.18947170502891,30.44277343049603]}},{"type":"Feature","properties":{"resourceCoords":[1021.0,347.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-91.18948584240586,30.443294559306075]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014bm:g032751891:03275_1891-0012/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Baton Rouge, Louisiana | 1891 | sanborn03275_002 p12","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.97"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-19T17:34:22Z","modified":"2026-10-19T17:34:22Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014bm:g032751891:03275_1891-0012/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014bm:g032751891:03275_1891-0012","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"106.4,38.2 510.7,37.6 536.1,98.2 1001.5,110.2 1001.5,126.4 1552.0,127.8 1558.1,395.2 1556.8,717.8 1561.0,1236.6 1563.9,1793.3 1536.5,1793.2 1540.9,1846.2 1509.8,1843.0 1332.8,1880.9 193.0,1805.7 76.5,1851.5 79.6,1786.9 82.2,679.2 85.2,474.4 113.3,388.6 81.3,388.9 54.4,114.0 106.4,38.2\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014bm:g032751891:03275_1891-0012/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[546.0,396.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-91.18748778882329,30.44333812616386]}},{"type":"Feature","properties":{"resourceCoords":[1543.0,678.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-91.18533683348319,30.442880733012746]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014bm:g032751891:03275_1891-0013/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Baton Rouge, Louisiana | 1891 | sanborn03275_002 p13","metadata":[{"label":"streets","value":"8"},{"label":"intersections","value":"13"},{"label":"confidence","value":"0.99"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-19T17:34:22Z","modified":"2026-10-19T17:34:22Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014bm:g032751891:03275_1891-0013/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014bm:g032751891:03275_1891-0013","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"515.7,113.8 1437.8,107.2 1443.3,323.1 1433.6,456.8 1440.2,665.9 1499.3,665.0 1501.5,1163.5 1565.5,1230.7 1581.4,1479.0 1515.5,1791.1 1441.3,1840.3 734.8,1801.4 521.6,1869.2 145.0,1833.0 140.1,1780.2 167.5,1780.1 159.2,1225.4 150.1,708.5 148.3,387.1 139.7,120.8 515.7,113.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014bm:g032751891:03275_1891-0013/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[520.0,1225.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-91.1844841,30.4418697]}},{"type":"Feature","properties":{"resourceCoords":[1383.0,1225.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-91.1826328,30.4419083]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014bm:g032751891:03275_1891-0014/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Baton Rouge, Louisiana | 1891 | sanborn03275_002 p14","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.66"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-19T17:34:22Z","modified":"2026-10-19T17:34:22Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014bm:g032751891:03275_1891-0014/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014bm:g032751891:03275_1891-0014","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"114.9,1677.8 10.6,1397.0 44.6,1400.1 98.0,114.2 297.1,33.4 894.5,29.7 1046.9,48.8 1074.3,107.5 1489.1,120.0 1518.6,591.1 1581.2,687.0 1509.1,1386.5 1571.6,1489.7 1612.0,1509.7 1284.0,1749.0 1050.7,1747.0 867.0,1749.2 115.9,1751.3 114.9,1677.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014bm:g032751891:03275_1891-0014/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-91.18388290728113,30.45590001744449]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-91.18041780787225,30.455990842692312]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-91.18029372568958,30.452423259814395]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-91.18375882509847,30.45233243456657]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014bm:g032751891:03275_1891-0015__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Baton Rouge, Louisiana | 1891 | sanborn03275_002 p15 [2]","metadata":[{"label":"streets","value":"4"},{"label":"intersections","value":"2"},{"label":"confidence","value":"0.91"},{"label":"confidence_provisional","value":"true"},{"label":"confidence_model","value":"corpus-v2"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"6452.0"},{"label":"split_canvas_h","value":"7652.0"}],"created":"2026-10-19T17:34:22Z","modified":"2026-10-19T17:34:22Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014bm:g032751891:03275_1891-0015__2/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014bm:g032751891:03275_1891-0015","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"90.0,1247.0 94.7,1464.2 84.5,1598.7 90.3,1809.1 149.9,1808.5 149.8,1796.2 1059.8,1799.5 1137.8,576.0 1213.4,497.3 1411.6,495.5 1339.5,449.4 1346.4,200.1 967.5,101.5 651.8,107.4 641.9,129.2 648.0,685.3 649.8,1243.5 90.0,1247.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014bm:g032751891:03275_1891-0015__2/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[90.0,1247.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-91.1825732,30.4439781]}},{"type":"Feature","properties":{"resourceCoords":[90.0,130.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-91.1826393,30.4460312]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014bm:g032751891:03275_1891-0015__4/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Baton Rouge, Louisiana | 1891 | sanborn03275_002 p15 [4]","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.79"},{"label":"confidence_provisional","value":"true"},{"label":"confidence_model","value":"corpus-v2"},{"label":"split_canvas_x","value":"4480.8"},{"label":"split_canvas_y","value":"4502.4"},{"label":"split_canvas_w","value":"1971.2"},{"label":"split_canvas_h","value":"3149.6"}],"created":"2026-10-19T17:34:22Z","modified":"2026-10-19T17:34:22Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014bm:g032751891:03275_1891-0015__4/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014bm:g032751891:03275_1891-0015","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1474.3,1815.2 1531.0,1876.2 1524.6,1250.0 1360.9,1193.5 1171.2,1244.4 1157.7,1810.8 1296.1,1852.8 1474.3,1815.2\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014bm:g032751891:03275_1891-0015__4/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1225.2,1765.1],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-91.17752241567256,30.44963663457875]}},{"type":"Feature","properties":{"resourceCoords":[1225.2,1195.5],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-91.1763120244288,30.449675140961855]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014bm:g032751891:03275_1891-0016__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Baton Rouge, Louisiana | 1891 | sanborn03275_002 p16 [2]","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.11"},{"label":"confidence_provisional","value":"true"},{"label":"confidence_model","value":"corpus-v2"},{"label":"split_canvas_x","value":"4324.4"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"2127.6"},{"label":"split_canvas_h","value":"3848.0"}],"created":"2026-10-19T17:34:22Z","modified":"2026-10-19T17:34:22Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014bm:g032751891:03275_1891-0016__2/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014bm:g032751891:03275_1891-0016","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1175.5,961.0 1529.3,961.0 1596.5,750.5 1567.5,143.3 1374.1,146.0 1300.0,23.3 1223.7,55.4 1212.7,350.0 1107.2,491.1 1157.0,957.3 1175.5,961.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014bm:g032751891:03275_1891-0016__2/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[1081.1,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-91.17039187508783,30.45491656192395]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-91.16927204445771,30.454977333373066]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,962.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-91.16914546127597,30.45321939839922]}},{"type":"Feature","properties":{"resourceCoords":[1081.1,962.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-91.17026529190609,30.453158626950106]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014bm:g032751891:03275_1891-0016__3/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Baton Rouge, Louisiana | 1891 | sanborn03275_002 p16 [3]","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.21"},{"label":"confidence_provisional","value":"true"},{"label":"confidence_model","value":"corpus-v2"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"3163.2"},{"label":"split_canvas_w","value":"6452.0"},{"label":"split_canvas_h","value":"4488.8"}],"created":"2026-10-19T17:34:22Z","modified":"2026-10-19T17:34:22Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014bm:g032751891:03275_1891-0016__3/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014bm:g032751891:03275_1891-0016","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"547.3,1392.3 547.2,1408.5 542.5,1408.5 540.9,1413.6 72.5,1455.2 44.9,1677.6 168.3,1853.2 446.4,1912.0 450.4,1912.0 1508.2,1871.5 1578.4,1413.6 1553.8,1005.9 1374.0,967.6 1088.6,962.0 1081.1,962.0 1081.1,961.9 1081.1,883.3 1016.6,883.4 994.1,879.0 995.9,895.0 708.5,863.5 547.3,1392.3\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014bm:g032751891:03275_1891-0016__3/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,790.8],"type":"corner"},"geometry":{"type":"Point","coordinates":[-91.17232217042603,30.453229427888804]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,790.8],"type":"corner"},"geometry":{"type":"Point","coordinates":[-91.16874590013462,30.45341818117406]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-91.16859452557811,30.45125664380449]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-91.17217079586952,30.451067890519234]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014bm:g032751891:03275_1891-0002/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Baton Rouge, Louisiana | 1891 | sanborn03275_002 p2","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.97"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-19T17:34:22Z","modified":"2026-10-19T17:34:22Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014bm:g032751891:03275_1891-0002/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014bm:g032751891:03275_1891-0002","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1525.5,1694.3 1514.0,1804.1 124.8,1793.5 44.9,781.5 45.6,328.0 113.3,92.2 1506.3,107.5 1544.7,107.3 1543.3,394.5 1531.6,1209.3 1518.2,1651.2 1518.8,1651.2 1525.5,1694.3\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014bm:g032751891:03275_1891-0002/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[407.0,657.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-91.1884098438955,30.452489587807328]}},{"type":"Feature","properties":{"resourceCoords":[1521.0,1206.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-91.1894841399732,30.45035204522256]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014bm:g032751891:03275_1891-0003/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Baton Rouge, Louisiana | 1891 | sanborn03275_002 p3","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.97"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-19T17:34:22Z","modified":"2026-10-19T17:34:22Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014bm:g032751891:03275_1891-0003/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014bm:g032751891:03275_1891-0003","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"125.0,1765.3 133.3,1190.3 37.2,1022.3 107.0,223.8 385.8,120.0 458.9,118.8 459.1,149.8 736.1,147.2 1238.9,129.6 1593.2,122.8 1595.9,462.0 1597.7,696.4 1599.7,1246.4 1603.4,1791.8 1565.0,1792.8 172.8,1808.3 125.0,1765.3\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014bm:g032751891:03275_1891-0003/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[459.0,1248.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-91.18597768391511,30.452583134952487]}},{"type":"Feature","properties":{"resourceCoords":[1579.0,1248.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-91.18591186874409,30.450482106634368]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014bm:g032751891:03275_1891-0004/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Baton Rouge, Louisiana | 1891 | sanborn03275_002 p4","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.89"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-19T17:34:22Z","modified":"2026-10-19T17:34:22Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014bm:g032751891:03275_1891-0004/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014bm:g032751891:03275_1891-0004","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1516.2,853.4 1516.2,923.7 1519.1,1786.7 1160.0,1791.8 650.5,1807.4 369.9,1808.7 369.8,1777.0 369.0,1020.4 367.2,835.3 369.6,600.2 115.5,250.6 129.3,127.3 296.8,132.7 467.4,35.4 1458.2,45.1 1534.3,172.3 1531.6,853.3 1516.2,853.4\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014bm:g032751891:03275_1891-0004/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-91.17975641098157,30.453430390023033]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-91.17964628658328,30.45044444910267]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-91.18372545957078,30.45033106456298]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-91.18383558396907,30.453317005483346]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014bm:g032751891:03275_1891-0005/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Baton Rouge, Louisiana | 1891 | sanborn03275_002 p5","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"8"},{"label":"confidence","value":"0.94"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-19T17:34:22Z","modified":"2026-10-19T17:34:22Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014bm:g032751891:03275_1891-0005/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014bm:g032751891:03275_1891-0005","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"68.0,71.3 67.9,70.8 509.0,81.0 1322.5,87.0 1609.1,86.2 1607.7,330.2 1595.8,649.5 1596.3,805.0 1591.6,1107.7 1589.0,1450.1 1599.0,1758.2 1604.6,1782.3 1294.5,1781.3 1289.3,1912.0 1256.6,1912.0 1221.2,1912.0 1220.0,1846.8 57.8,1805.1 44.0,80.2 24.9,78.3 68.0,71.3\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014bm:g032751891:03275_1891-0005/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1045.0,1209.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-91.1882197,30.4482562]}},{"type":"Feature","properties":{"resourceCoords":[509.0,81.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-91.1894903,30.4503318]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014bm:g032751891:03275_1891-0006/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Baton Rouge, Louisiana | 1891 | sanborn03275_002 p6","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.98"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-19T17:34:22Z","modified":"2026-10-19T17:34:22Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014bm:g032751891:03275_1891-0006/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014bm:g032751891:03275_1891-0006","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1160.8,1820.6 784.7,1827.1 751.6,1822.9 94.7,1828.5 88.5,1803.9 73.3,1489.1 70.4,1139.1 70.2,829.5 67.2,670.6 74.2,344.1 71.7,94.6 628.5,90.3 1190.1,87.7 1220.4,87.4 1370.6,663.5 1289.3,664.2 1349.8,1238.5 1524.3,1235.7 1533.4,1772.0 1536.5,1848.2 1160.8,1852.1 1160.8,1820.6\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014bm:g032751891:03275_1891-0006/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[625.0,665.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-91.18588271779683,30.449387176983908]}},{"type":"Feature","properties":{"resourceCoords":[1153.0,1806.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-91.18469384229176,30.447315887719512]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014bm:g032751891:03275_1891-0007/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Baton Rouge, Louisiana | 1891 | sanborn03275_002 p7","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.94"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-19T17:34:22Z","modified":"2026-10-19T17:34:22Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014bm:g032751891:03275_1891-0007/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014bm:g032751891:03275_1891-0007","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"410.4,1803.7 409.4,1267.4 235.0,1267.5 183.2,692.4 264.5,693.0 123.2,114.7 332.1,116.2 678.4,118.4 1541.7,123.4 1612.0,124.0 1612.0,139.5 1515.2,138.3 1498.2,372.6 1574.0,493.2 1595.8,854.0 1529.3,1218.5 1576.8,1844.7 1521.2,1853.3 1473.3,1885.0 412.3,1879.9 410.4,1803.7\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014bm:g032751891:03275_1891-0007/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[966.0,1832.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-91.18269863371948,30.447386779060366]}},{"type":"Feature","properties":{"resourceCoords":[1228.0,115.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-91.18229168128872,30.45056045213067]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014bm:g032751891:03275_1891-0009/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Baton Rouge, Louisiana | 1891 | sanborn03275_002 p9","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.91"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-19T17:34:22Z","modified":"2026-10-19T17:34:22Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014bm:g032751891:03275_1891-0009/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014bm:g032751891:03275_1891-0009","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"108.8,1788.5 82.4,204.9 82.4,203.9 150.9,204.1 156.6,72.6 468.6,74.4 1115.5,81.0 1148.0,85.7 1518.3,86.2 1516.9,159.7 1511.2,788.4 1499.2,1337.9 1495.8,1889.3 1123.1,1888.5 579.6,1881.2 579.8,1865.3 120.3,1848.5 95.9,1788.4 108.8,1788.5\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014bm:g032751891:03275_1891-0009/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1127.0,789.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-91.18545508983605,30.445946011661682]}},{"type":"Feature","properties":{"resourceCoords":[1127.0,1869.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-91.18535069250197,30.443931727585888]}}]}}]}