{"id":"https://data.mapsnap.org/runs/v2.0/iiif/chronoscope/sanborn03401_002.main.iiif.json","type":"AnnotationPage","@context":["http://www.w3.org/ns/anno.jsonld"],"label":"Shreveport, Louisiana | 1890 | mapsnap generated fit (2026-10-17)","creator":{"type":"Software","name":"mapsnap","homepage":"https://mapsnap.org"},"rights":"https://opendatacommons.org/licenses/odbl/1-0/","metadata":[{"label":"generated","value":"2026-10-17"},{"label":"run","value":"corpus-v2"},{"label":"pages","value":"17"},{"label":"placed","value":"14"},{"label":"unplaced","value":"3"},{"label":"fit sources","value":"georef-snap 8, georef 5, snap:0 1"},{"label":"key map","value":"georeferenced"},{"label":"split sheets","value":"2 sheet(s) cut into 5 panels"},{"label":"unplaced pages","value":"p15__1 (tier 1, 32.49572,-93.76131 +/-274m); p15__3 (tier 1, 32.49566,-93.76179 +/-100m); p2__2 (tier 1, 32.49685,-93.75413 +/-197m)"}],"items":[{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014sm:g034011890:03401_1890-0010/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Shreveport, Louisiana | 1890 | sanborn03401_002 p10","metadata":[{"label":"streets","value":"9"},{"label":"intersections","value":"17"},{"label":"confidence","value":"0.99"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-17T06:07:27Z","modified":"2026-10-17T06:07:27Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014sm:g034011890:03401_1890-0010/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014sm:g034011890:03401_1890-0010","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"301.0,1316.7 303.5,668.0 308.8,99.3 1452.8,93.9 1450.4,664.0 1450.0,1234.4 1423.0,1234.5 1471.2,1707.7 1402.9,1837.2 1237.0,1763.7 1034.6,1744.9 1030.5,1817.3 802.3,1738.9 277.6,1865.9 194.9,1862.6 66.0,1732.3 132.0,1732.1 301.0,1316.7\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014sm:g034011890:03401_1890-0010/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[874.0,667.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-93.74996,32.509814]}},{"type":"Feature","properties":{"resourceCoords":[874.0,97.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-93.75077,32.510624]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014sm:g034011890:03401_1890-0011/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Shreveport, Louisiana | 1890 | sanborn03401_002 p11","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.87"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-17T06:07:27Z","modified":"2026-10-17T06:07:27Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014sm:g034011890:03401_1890-0011/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014sm:g034011890:03401_1890-0011","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1612.0,292.6 1612.0,339.4 1571.8,378.9 1593.0,1370.8 1525.2,1594.4 1610.2,1676.0 1313.1,1696.3 1281.9,1600.3 272.9,1782.5 272.9,1800.5 123.6,1795.5 138.2,1374.4 56.0,1360.9 39.5,916.1 142.1,684.6 56.2,443.2 5.2,421.4 4.7,96.5 564.6,103.1 1203.3,107.0 1612.0,274.4 1612.0,292.6\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014sm:g034011890:03401_1890-0011/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1311.0,1725.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-93.75260988862078,32.5060743054487]}},{"type":"Feature","properties":{"resourceCoords":[553.0,89.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-93.75091273821937,32.509162837319145]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014sm:g034011890:03401_1890-0012/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Shreveport, Louisiana | 1890 | sanborn03401_002 p12","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.82"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-17T06:07:27Z","modified":"2026-10-17T06:07:27Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014sm:g034011890:03401_1890-0012/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014sm:g034011890:03401_1890-0012","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"251.5,84.3 258.3,67.4 1275.8,279.3 1268.8,381.4 1555.8,475.1 1601.9,578.1 1519.2,1137.0 1564.1,1751.8 1612.0,1761.2 1612.0,1802.7 1261.3,1829.7 1262.3,1840.2 1111.4,1778.2 373.9,1746.7 343.2,1821.2 333.0,1760.5 141.1,1722.3 74.3,1626.5 32.1,503.0 72.8,113.3 113.0,23.0 251.5,84.3\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014sm:g034011890:03401_1890-0012/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1239.0,397.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-93.75263206556224,32.50610636704918]}},{"type":"Feature","properties":{"resourceCoords":[55.0,1347.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-93.75592243692688,32.50556618425606]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014sm:g034011890:03401_1890-0013/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Shreveport, Louisiana | 1890 | sanborn03401_002 p13","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"8"},{"label":"confidence","value":"0.87"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-17T06:07:27Z","modified":"2026-10-17T06:07:27Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014sm:g034011890:03401_1890-0013/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014sm:g034011890:03401_1890-0013","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"35.2,544.1 354.9,1025.8 240.3,1000.8 471.9,1428.4 407.8,1463.2 847.6,1868.3 853.2,1851.6 1199.0,1743.0 1437.0,1744.0 1480.9,1801.6 1476.0,1723.3 1573.7,1612.3 1583.5,1234.1 1542.5,1240.0 1457.2,898.3 1447.0,901.0 1483.0,741.6 1390.9,8.3 1297.5,1.0 1281.8,1.0 952.3,115.7 594.8,41.7 174.2,52.3 99.8,254.6 35.2,544.1\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014sm:g034011890:03401_1890-0013/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[638.0,93.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-93.756568,32.503422]}},{"type":"Feature","properties":{"resourceCoords":[1447.0,901.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-93.7540693,32.5037071]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014sm:g034011890:03401_1890-0014/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Shreveport, Louisiana | 1890 | sanborn03401_002 p14","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.97"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-17T06:07:27Z","modified":"2026-10-17T06:07:27Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014sm:g034011890:03401_1890-0014/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014sm:g034011890:03401_1890-0014","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"583.9,1811.0 678.8,1872.2 1484.5,1850.8 1588.5,1709.7 1296.2,1189.3 1367.8,1176.1 1279.9,698.6 1381.0,757.8 1226.2,201.8 1344.9,1.0 1334.3,1.0 1276.4,74.5 819.9,19.6 101.3,48.9 73.7,189.1 240.8,795.3 266.9,787.4 412.6,1211.2 480.8,1485.5 518.5,1611.1 596.1,1808.0 583.9,1811.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014sm:g034011890:03401_1890-0014/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[600.0,291.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-93.75685447961662,32.50086574436722]}},{"type":"Feature","properties":{"resourceCoords":[1023.0,534.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-93.75603888434661,32.50145976138152]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014sm:g034011890:03401_1890-0015__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Shreveport, Louisiana | 1890 | sanborn03401_002 p15 [2]","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.23"},{"label":"confidence_provisional","value":"true"},{"label":"confidence_model","value":"corpus-v2"},{"label":"split_canvas_x","value":"2592.0"},{"label":"split_canvas_y","value":"4594.4"},{"label":"split_canvas_w","value":"2000.0"},{"label":"split_canvas_h","value":"3057.6"}],"created":"2026-10-17T06:07:27Z","modified":"2026-10-17T06:07:27Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014sm:g034011890:03401_1890-0015__2/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014sm:g034011890:03401_1890-0015","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1047.8,1211.6 674.7,1183.2 726.7,1884.0 1124.9,1875.2 1129.9,1330.3 1047.8,1211.6\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014sm:g034011890:03401_1890-0015__2/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[648.0,1148.6],"type":"corner"},"geometry":{"type":"Point","coordinates":[-93.74548320812346,32.50825774970726]}},{"type":"Feature","properties":{"resourceCoords":[1148.0,1148.6],"type":"corner"},"geometry":{"type":"Point","coordinates":[-93.74470358212051,32.50888658376278]}},{"type":"Feature","properties":{"resourceCoords":[1148.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-93.7435707024899,32.50787355573147]}},{"type":"Feature","properties":{"resourceCoords":[648.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-93.74435032849284,32.50724472167595]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014sm:g034011890:03401_1890-0002__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Shreveport, Louisiana | 1890 | sanborn03401_002 p2 [1]","metadata":[{"label":"streets","value":"5"},{"label":"intersections","value":"3"},{"label":"confidence","value":"0.34"},{"label":"confidence_provisional","value":"true"},{"label":"confidence_model","value":"corpus-v2"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"3188.8"},{"label":"split_canvas_w","value":"6452.0"},{"label":"split_canvas_h","value":"4463.2"}],"created":"2026-10-17T06:07:27Z","modified":"2026-10-17T06:07:27Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014sm:g034011890:03401_1890-0002__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014sm:g034011890:03401_1890-0002","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1471.7,812.2 1466.0,812.9 1454.0,814.1 1444.3,815.1 1445.1,825.1 520.8,965.7 48.7,971.0 41.8,1459.7 111.2,1478.7 123.2,1654.2 34.1,1749.0 44.5,1865.7 324.9,1911.7 670.0,1800.0 808.0,1830.4 820.8,1870.5 800.9,1883.5 1396.2,1911.2 1559.0,1864.2 1595.0,1886.0 1607.6,1885.2 1567.4,1675.7 1553.5,1544.0 1537.0,1259.5 1471.7,812.2\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014sm:g034011890:03401_1890-0002__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[46.0,1702.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-93.754606,32.497124]}},{"type":"Feature","properties":{"resourceCoords":[1545.0,1393.1],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-93.7547811,32.4999467]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014sm:g034011890:03401_1890-0003/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Shreveport, Louisiana | 1890 | sanborn03401_002 p3","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.99"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-17T06:07:27Z","modified":"2026-10-17T06:07:27Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014sm:g034011890:03401_1890-0003/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014sm:g034011890:03401_1890-0003","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"331.9,64.0 1.0,119.0 1.0,119.8 54.0,156.5 48.9,1837.6 1138.7,1881.9 1138.8,1836.2 1313.6,1834.1 1495.2,1352.8 1488.5,690.1 1483.3,109.3 919.1,109.1 330.3,106.9 331.9,64.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014sm:g034011890:03401_1890-0003/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[928.0,680.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-93.74938357898903,32.515904602276045]}},{"type":"Feature","properties":{"resourceCoords":[367.0,1827.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-93.75214688107998,32.515327258140644]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014sm:g034011890:03401_1890-0004/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Shreveport, Louisiana | 1890 | sanborn03401_002 p4","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.74"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-17T06:07:27Z","modified":"2026-10-17T06:07:27Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014sm:g034011890:03401_1890-0004/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014sm:g034011890:03401_1890-0004","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"51.2,266.1 119.5,138.7 706.9,49.5 1217.7,277.3 1373.2,231.4 1280.0,370.4 1589.7,969.1 1564.3,1763.5 1524.8,1863.2 1367.2,1878.5 1000.9,1748.8 922.3,1838.2 618.9,1827.4 620.0,1778.3 28.9,1773.2 42.1,1205.8 58.0,613.7 101.1,616.4 51.2,266.1\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014sm:g034011890:03401_1890-0004/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[78.0,635.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-93.74919621651199,32.51745280191983]}},{"type":"Feature","properties":{"resourceCoords":[78.0,1783.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-93.74751680671626,32.51584081330852]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014sm:g034011890:03401_1890-0005/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Shreveport, Louisiana | 1890 | sanborn03401_002 p5","metadata":[{"label":"streets","value":"8"},{"label":"intersections","value":"13"},{"label":"confidence","value":"0.99"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-17T06:07:27Z","modified":"2026-10-17T06:07:27Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014sm:g034011890:03401_1890-0005/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014sm:g034011890:03401_1890-0005","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1534.2,224.0 1527.4,1331.5 1529.2,1758.7 400.0,1757.7 74.3,1757.2 90.9,1718.9 25.8,1155.0 25.3,316.8 84.5,37.7 1471.2,34.3 1573.5,224.3 1549.0,224.1 1534.2,224.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014sm:g034011890:03401_1890-0005/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[401.0,583.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-93.75342,32.511628]}},{"type":"Feature","properties":{"resourceCoords":[1529.0,1171.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-93.750651,32.512164]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014sm:g034011890:03401_1890-0006/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Shreveport, Louisiana | 1890 | sanborn03401_002 p6","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.96"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-17T06:07:27Z","modified":"2026-10-17T06:07:27Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014sm:g034011890:03401_1890-0006/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014sm:g034011890:03401_1890-0006","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1102.8,1806.7 1528.0,1801.3 1514.5,108.3 347.4,113.1 354.3,771.8 173.8,1250.2 1.0,1252.2 1.0,1297.8 59.9,1300.1 53.1,1741.1 1.0,1769.7 1.0,1809.3 1102.8,1806.7\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014sm:g034011890:03401_1890-0006/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[935.0,673.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-93.74871377876097,32.51355284086318]}},{"type":"Feature","properties":{"resourceCoords":[935.0,1805.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-93.75065982616447,32.512177210188504]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014sm:g034011890:03401_1890-0007/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Shreveport, Louisiana | 1890 | sanborn03401_002 p7","metadata":[{"label":"streets","value":"7"},{"label":"intersections","value":"11"},{"label":"confidence","value":"0.98"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-17T06:07:27Z","modified":"2026-10-17T06:07:27Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014sm:g034011890:03401_1890-0007/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014sm:g034011890:03401_1890-0007","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"139.1,99.2 717.1,96.7 1302.0,91.0 1301.8,139.6 1602.1,144.7 1562.8,191.1 1581.2,655.6 1499.5,829.6 1564.4,1184.0 1554.7,1615.4 1479.2,1682.5 1543.6,1837.3 1232.5,1833.2 1231.2,1825.2 720.3,1819.9 129.7,1820.1 139.4,1541.5 138.3,1267.7 139.1,99.2\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014sm:g034011890:03401_1890-0007/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1302.0,91.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-93.746621,32.516516]}},{"type":"Feature","properties":{"resourceCoords":[1302.0,1826.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-93.74411,32.514014]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014sm:g034011890:03401_1890-0008/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Shreveport, Louisiana | 1890 | sanborn03401_002 p8","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.92"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-17T06:07:27Z","modified":"2026-10-17T06:07:27Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014sm:g034011890:03401_1890-0008/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014sm:g034011890:03401_1890-0008","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"675.4,68.9 1186.1,81.8 1187.3,89.8 1498.2,98.6 1546.1,218.7 1596.0,1171.7 1534.4,1752.8 1435.8,1865.8 95.3,1871.3 39.3,1718.2 37.6,1061.7 41.9,1060.7 62.8,103.7 85.0,60.3 675.4,68.9\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014sm:g034011890:03401_1890-0008/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[655.0,73.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-93.74514206175792,32.51328172686179]}},{"type":"Feature","properties":{"resourceCoords":[1266.0,73.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-93.74411033483723,32.51404054530275]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014sm:g034011890:03401_1890-0009/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Shreveport, Louisiana | 1890 | sanborn03401_002 p9","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.95"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-17T06:07:27Z","modified":"2026-10-17T06:07:27Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014sm:g034011890:03401_1890-0009/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014sm:g034011890:03401_1890-0009","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1177.9,1818.7 616.2,1814.6 54.9,1808.5 57.6,111.9 331.6,112.1 610.3,123.2 654.0,144.9 1612.0,156.3 1612.0,160.5 1576.5,161.0 1508.0,516.1 1492.2,831.5 1577.2,1205.0 1525.1,1639.9 1564.8,1758.5 1612.0,1783.8 1612.0,1804.0 1177.8,1845.3 1177.9,1818.7\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014sm:g034011890:03401_1890-0009/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1169.0,1813.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-93.74818626571897,32.50971768351485]}},{"type":"Feature","properties":{"resourceCoords":[80.0,93.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-93.74684324052606,32.51338999078729]}}]}}]}