{"id":"https://data.mapsnap.org/runs/v2.0/iiif/chronoscope/sanborn03300_003.main.iiif.json","type":"AnnotationPage","@context":["http://www.w3.org/ns/anno.jsonld"],"label":"De Ridder, Louisiana | 1921 | mapsnap generated fit (2026-10-18)","creator":{"type":"Software","name":"mapsnap","homepage":"https://mapsnap.org"},"rights":"https://opendatacommons.org/licenses/odbl/1-0/","metadata":[{"label":"generated","value":"2026-10-18"},{"label":"run","value":"corpus-v2"},{"label":"pages","value":"12"},{"label":"placed","value":"12"},{"label":"unplaced","value":"0"},{"label":"fit sources","value":"georef-snap 9, georef 3"},{"label":"key map","value":"georeferenced"},{"label":"split sheets","value":"2 sheet(s) cut into 3 panels"}],"items":[{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014dm:g033001921:03300_1921-0010__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"De Ridder, Louisiana | 1921 | sanborn03300_003 p10 [1]","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.90"},{"label":"confidence_provisional","value":"true"},{"label":"confidence_model","value":"corpus-v2"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"1832.0"},{"label":"split_canvas_h","value":"7652.0"}],"created":"2026-10-18T21:34:27Z","modified":"2026-10-18T21:34:27Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014dm:g033001921:03300_1921-0010__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014dm:g033001921:03300_1921-0010","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"369.2,33.9 89.6,32.0 110.0,483.3 43.4,864.1 68.0,1856.7 87.3,1857.2 401.1,1863.3 369.2,33.9\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014dm:g033001921:03300_1921-0010__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[89.0,1172.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-93.2930592946899,30.848095443426256]}},{"type":"Feature","properties":{"resourceCoords":[89.0,39.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-93.29302622725987,30.850227784725252]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014dm:g033001921:03300_1921-0010__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"De Ridder, Louisiana | 1921 | sanborn03300_003 p10 [2]","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.87"},{"label":"confidence_provisional","value":"true"},{"label":"confidence_model","value":"corpus-v2"},{"label":"split_canvas_x","value":"1705.6"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"4746.4"},{"label":"split_canvas_h","value":"7652.0"}],"created":"2026-10-18T21:34:27Z","modified":"2026-10-18T21:34:27Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014dm:g033001921:03300_1921-0010__2/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014dm:g033001921:03300_1921-0010","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"753.1,1853.5 1031.0,1855.3 1330.8,1852.0 1612.0,1835.5 1612.0,1807.6 1568.5,1805.4 1522.9,149.0 1335.6,63.3 853.3,94.6 548.5,17.0 528.6,475.4 532.8,475.6 525.2,792.9 537.1,792.6 555.2,1196.6 549.8,1196.5 589.8,1857.2 753.1,1853.5\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014dm:g033001921:03300_1921-0010__2/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1024.2,1185.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-93.28159723013727,30.847824066341218]}},{"type":"Feature","properties":{"resourceCoords":[1024.2,531.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-93.28157157917839,30.849011231892383]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014dm:g033001921:03300_1921-0011/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"De Ridder, Louisiana | 1921 | sanborn03300_003 p11","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"4"},{"label":"confidence","value":"0.48"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T21:34:27Z","modified":"2026-10-18T21:34:27Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014dm:g033001921:03300_1921-0011/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014dm:g033001921:03300_1921-0011","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"18.8,1230.9 1.0,1231.2 1.0,1579.2 24.4,1578.5 24.8,1844.4 62.9,1887.7 1093.4,1887.4 1561.3,1848.0 1600.3,258.7 1553.8,56.9 1416.8,51.4 1416.7,65.2 1277.0,74.8 1128.0,78.0 989.9,78.5 673.0,89.0 672.1,72.5 182.1,84.2 181.5,96.7 128.9,97.6 98.3,97.7 60.0,373.9 29.7,372.5 7.0,643.3 26.9,644.3 18.8,1230.9\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014dm:g033001921:03300_1921-0011/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[673.0,89.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-93.283546,30.846615]}},{"type":"Feature","properties":{"resourceCoords":[673.0,276.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-93.283569,30.845932]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014dm:g033001921:03300_1921-0001__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"De Ridder, Louisiana | 1921 | sanborn03300_003 p1 [2]","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.90"},{"label":"confidence_provisional","value":"true"},{"label":"confidence_model","value":"corpus-v2"},{"label":"split_canvas_x","value":"1823.6"},{"label":"split_canvas_y","value":"3690.8"},{"label":"split_canvas_w","value":"4628.4"},{"label":"split_canvas_h","value":"3961.2"}],"created":"2026-10-18T21:34:27Z","modified":"2026-10-18T21:34:27Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014dm:g033001921:03300_1921-0001__2/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014dm:g033001921:03300_1921-0001","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"481.0,1154.9 455.9,1155.0 455.9,1818.5 457.4,1910.7 1594.3,1906.2 1600.4,1833.7 1612.0,1833.5 1612.0,1146.0 1596.1,1068.3 1599.3,1031.5 1140.0,1004.1 472.5,960.1 479.5,1119.1 481.0,1154.9\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014dm:g033001921:03300_1921-0001__2/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1112.4,985.6],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-93.28767358614895,30.84283792744085]}},{"type":"Feature","properties":{"resourceCoords":[1559.0,985.6],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-93.28670451195387,30.84282409655888]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014dm:g033001921:03300_1921-0002/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"De Ridder, Louisiana | 1921 | sanborn03300_003 p2","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.77"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T21:34:27Z","modified":"2026-10-18T21:34:27Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014dm:g033001921:03300_1921-0002/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014dm:g033001921:03300_1921-0002","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1249.5,48.5 29.7,53.2 40.8,1892.1 1503.4,1896.5 1595.5,1865.8 1600.4,1765.1 1612.0,1765.4 1612.0,1760.4 1517.7,1765.2 1430.6,1115.3 1471.3,1114.5 1451.0,498.1 1488.3,499.9 1281.3,1.0 1273.6,1.0 1249.5,48.5\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014dm:g033001921:03300_1921-0002/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-93.28512920947728,30.85395058390888]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-93.28520527895199,30.850900596931446]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-93.28938925570827,30.85097859437069]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-93.28931318623356,30.854028581348125]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014dm:g033001921:03300_1921-0003/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"De Ridder, Louisiana | 1921 | sanborn03300_003 p3","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.90"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T21:34:27Z","modified":"2026-10-18T21:34:27Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014dm:g033001921:03300_1921-0003/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014dm:g033001921:03300_1921-0003","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1612.0,333.8 1612.0,442.4 1576.7,428.0 1541.0,544.9 1536.2,953.0 1534.9,1301.7 1518.3,1857.2 1458.2,1861.2 778.2,1869.3 778.1,1890.8 357.8,1872.4 356.8,1867.3 260.2,1870.7 181.8,1208.5 223.5,1208.2 213.0,581.2 251.2,583.7 47.1,72.0 40.2,71.9 64.8,25.6 821.0,21.5 820.4,97.8 1612.0,333.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014dm:g033001921:03300_1921-0003/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1517.0,1331.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-93.2879149971183,30.84882616785304]}},{"type":"Feature","properties":{"resourceCoords":[694.0,1864.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-93.28905221165014,30.8503514726017]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014dm:g033001921:03300_1921-0004/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"De Ridder, Louisiana | 1921 | sanborn03300_003 p4","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.98"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T21:34:27Z","modified":"2026-10-18T21:34:27Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014dm:g033001921:03300_1921-0004/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014dm:g033001921:03300_1921-0004","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"24.9,2.3 1539.9,30.5 1540.5,18.1 1561.8,18.4 1567.2,690.1 1570.9,749.5 1579.2,1204.0 1580.8,1544.2 1579.3,1869.4 1485.4,1867.5 1485.0,1912.0 1324.1,1912.0 1326.6,1864.2 964.8,1856.8 658.8,1850.5 35.1,1844.1 24.9,2.3\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014dm:g033001921:03300_1921-0004/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[345.0,1162.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-93.29171828714263,30.84806104051025]}},{"type":"Feature","properties":{"resourceCoords":[966.0,30.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-93.29036215260255,30.85017590072514]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014dm:g033001921:03300_1921-0005/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"De Ridder, Louisiana | 1921 | sanborn03300_003 p5","metadata":[{"label":"streets","value":"11"},{"label":"intersections","value":"18"},{"label":"confidence","value":"0.99"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T21:34:27Z","modified":"2026-10-18T21:34:27Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014dm:g033001921:03300_1921-0005/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014dm:g033001921:03300_1921-0005","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1.0,1243.7 1.0,1628.8 88.6,1736.1 88.5,1728.7 873.0,1781.0 1056.8,1791.7 1354.0,1815.8 1413.3,1819.6 1498.4,1278.4 1545.0,1279.0 1545.9,612.7 1543.7,357.7 1588.8,203.6 1481.0,204.2 1495.0,169.1 1378.8,134.3 973.4,131.7 627.1,132.4 75.4,119.0 88.0,575.7 92.8,917.8 94.4,1244.7 1.0,1243.7\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014dm:g033001921:03300_1921-0005/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[595.0,583.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-93.2879324,30.8479554]}},{"type":"Feature","properties":{"resourceCoords":[873.0,1781.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-93.2873585,30.8457218]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014dm:g033001921:03300_1921-0006/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"De Ridder, Louisiana | 1921 | sanborn03300_003 p6","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.94"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T21:34:27Z","modified":"2026-10-18T21:34:27Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014dm:g033001921:03300_1921-0006/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014dm:g033001921:03300_1921-0006","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"65.4,1912.0 65.0,1867.6 315.2,1834.6 316.3,1912.0 353.1,1912.0 351.6,1876.5 345.0,1714.7 1024.3,1761.4 1491.6,1790.5 1488.3,1828.0 1505.2,1912.0 1553.8,1912.0 1563.3,1912.0 1597.1,741.3 1557.5,738.7 1611.0,199.0 1309.0,175.3 1122.2,165.1 324.9,114.3 225.9,1.0 41.0,1.0 41.2,388.7 10.2,1181.4 33.9,1181.3 33.5,1704.4 40.0,1912.0 65.4,1912.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014dm:g033001921:03300_1921-0006/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1536.0,692.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-93.28649189415516,30.844746894564825]}},{"type":"Feature","properties":{"resourceCoords":[1536.0,1736.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-93.28652269490766,30.84283616660558]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014dm:g033001921:03300_1921-0007/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"De Ridder, Louisiana | 1921 | sanborn03300_003 p7","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.97"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T21:34:27Z","modified":"2026-10-18T21:34:27Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014dm:g033001921:03300_1921-0007/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014dm:g033001921:03300_1921-0007","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"41.6,1912.0 48.1,1912.0 45.8,1735.0 676.2,1739.0 977.6,1743.1 1307.0,1739.9 1582.0,1738.9 1612.0,980.2 1612.0,224.0 1603.0,223.0 1603.0,205.0 1612.0,204.0 1612.0,193.8 1277.3,191.0 967.8,188.2 337.3,189.3 18.0,183.1 1.0,182.6 1.0,287.3 41.6,1912.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014dm:g033001921:03300_1921-0007/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1258.0,192.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-93.29041215591943,30.846758723659235]}},{"type":"Feature","properties":{"resourceCoords":[62.0,1742.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-93.29303321704575,30.843921765421094]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014dm:g033001921:03300_1921-0008/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"De Ridder, Louisiana | 1921 | sanborn03300_003 p8","metadata":[{"label":"streets","value":"7"},{"label":"intersections","value":"12"},{"label":"confidence","value":"0.99"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T21:34:27Z","modified":"2026-10-18T21:34:27Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014dm:g033001921:03300_1921-0008/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014dm:g033001921:03300_1921-0008","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"21.2,205.2 19.7,29.4 646.2,36.3 945.6,41.8 1273.0,40.1 1569.7,40.4 1566.5,554.8 1571.9,759.0 1596.9,759.1 1599.0,1809.8 1556.2,1882.7 48.5,1874.0 46.8,1573.1 41.0,1503.8 14.8,206.2 21.2,205.2\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014dm:g033001921:03300_1921-0008/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[654.0,548.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-93.2917028,30.8429595]}},{"type":"Feature","properties":{"resourceCoords":[1253.0,40.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-93.2903947,30.8438953]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014dm:g033001921:03300_1921-0009/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"De Ridder, Louisiana | 1921 | sanborn03300_003 p9","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.97"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T21:34:27Z","modified":"2026-10-18T21:34:27Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014dm:g033001921:03300_1921-0009/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014dm:g033001921:03300_1921-0009","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"17.0,1876.1 121.0,1876.0 122.5,1851.3 1091.9,1843.6 1093.2,1876.2 1559.5,1868.1 1523.7,1218.7 1529.0,1218.8 1513.4,821.7 1501.8,821.9 1510.9,510.1 1506.8,509.9 1528.7,59.5 1373.7,19.2 351.4,18.0 351.1,1.0 274.5,1.0 1.0,945.0 1.0,1205.2 2.8,1205.2 3.4,1876.0 17.0,1876.1\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014dm:g033001921:03300_1921-0009/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1075.0,1866.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-93.28358478715136,30.846634192620485]}},{"type":"Feature","properties":{"resourceCoords":[1075.0,509.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-93.2835465878414,30.849140993693574]}}]}}]}