{"id":"https://data.mapsnap.org/runs/v1.3/iiif/chronoscope/sanborn03401_004.main.iiif.json","type":"AnnotationPage","@context":["http://www.w3.org/ns/anno.jsonld"],"label":"Shreveport, Louisiana | 1899 | mapsnap generated fit (2026-09-22)","creator":{"type":"Software","name":"mapsnap","homepage":"https://mapsnap.org"},"rights":"https://opendatacommons.org/licenses/odbl/1-0/","metadata":[{"label":"generated","value":"2026-09-22"},{"label":"run","value":"corpus-v1"},{"label":"pages","value":"57"},{"label":"placed","value":"32"},{"label":"unplaced","value":"25"},{"label":"fit sources","value":"georef 25, georef-snap 6, snap:0 1"},{"label":"key map","value":"georeferenced"},{"label":"split sheets","value":"14 sheet(s) cut into 40 panels"},{"label":"unplaced pages","value":"p1 (tier 1, 32.50600,-93.75725 +/-116m); p15__2 (tier 2, 32.51198,-93.74594 +/-134m); p16__3 (tier 1, 32.50872,-93.74608 +/-100m); p17__1 (tier 1, 32.50838,-93.75665 +/-192m); p19__1 (tier 2, 32.50354,-93.75594 +/-159m); p22__1 (tier 1, 32.49482,-93.75435 +/-100m); p22__3 (tier 1, 32.49689,-93.75631 +/-100m); p24__1 (tier 1, 32.49814,-93.74715 +/-191m); p25__2 (tier 1, 32.49669,-93.74529 +/-166m); p26__1 (tier 1, 32.49958,-93.75224 +/-184m); p27__2 (tier 1, 32.50572,-93.74815 +/-261m); p27__3 (tier 1, 32.50410,-93.74915 +/-100m); p29__1 (tier 1, 32.49852,-93.76143 +/-261m); p29__2 (tier 1, 32.49699,-93.76282 +/-186m); p30__1 (tier 1, 32.51672,-93.75473 +/-100m); p30__3 (tier 1, 32.51434,-93.75306 +/-100m); p30__4 (tier 1, 32.49413,-93.76330 +/-100m); p31__1 (tier 3, 32.51719,-93.74003 +/-620m); p31__2 (tier 3, 32.51719,-93.74003 +/-620m); p31__3 (tier 3, 32.51719,-93.74003 +/-620m); p31__4 (tier 3, 32.51719,-93.74003 +/-620m); p31__5 (tier 3, 32.51719,-93.74003 +/-620m); p31__6 (tier 3, 32.51719,-93.74003 +/-620m); p31__7 (tier 3, 32.51719,-93.74003 +/-620m); p31__8 (tier 3, 32.51719,-93.74003 +/-620m)"}],"items":[{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014sm:g034011899:03401_1899-0010/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Shreveport, Louisiana | 1899 | sanborn03401_004 p10","metadata":[{"label":"streets","value":"7"},{"label":"intersections","value":"11"}],"created":"2026-09-22T19:26:54Z","modified":"2026-09-22T19:26:54Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014sm:g034011899:03401_1899-0010/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014sm:g034011899:03401_1899-0010","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"90.9,63.4 1282.1,57.3 1281.9,149.5 1613.0,152.3 1613.0,1754.6 1282.5,1755.2 1278.8,1834.5 78.1,1826.1 90.9,63.4\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014sm:g034011899:03401_1899-0010/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[683.0,1827.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-93.7451137,32.513313]}},{"type":"Feature","properties":{"resourceCoords":[683.0,62.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-93.747613,32.515794]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014sm:g034011899:03401_1899-0011/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Shreveport, Louisiana | 1899 | sanborn03401_004 p11","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-22T19:26:54Z","modified":"2026-09-22T19:26:54Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014sm:g034011899:03401_1899-0011/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014sm:g034011899:03401_1899-0011","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1384.7,1112.7 1378.0,1913.0 -0.0,1913.0 25.0,73.5 1572.9,71.8 1561.8,1055.6 1384.7,1112.7\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014sm:g034011899:03401_1899-0011/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-93.7564755487215,32.50604916952569]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-93.75374503846199,32.50801204404593]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-93.75100398572849,32.50526174343848]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-93.753734495988,32.50329886891824]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014sm:g034011899:03401_1899-0012/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Shreveport, Louisiana | 1899 | sanborn03401_004 p12","metadata":[{"label":"streets","value":"7"},{"label":"intersections","value":"6"}],"created":"2026-09-22T19:26:54Z","modified":"2026-09-22T19:26:54Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014sm:g034011899:03401_1899-0012/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014sm:g034011899:03401_1899-0012","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"172.0,1042.4 174.9,83.2 -0.0,86.1 -0.0,-0.0 1359.2,0.0 978.0,422.3 1100.5,358.2 1536.0,353.5 1514.5,1913.0 -0.0,1913.0 -0.0,1100.7 172.0,1042.4\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014sm:g034011899:03401_1899-0012/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[172.0,1042.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-93.7523192,32.5064321]}},{"type":"Feature","properties":{"resourceCoords":[1536.0,354.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-93.75092,32.509129]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014sm:g034011899:03401_1899-0013/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Shreveport, Louisiana | 1899 | sanborn03401_004 p13","metadata":[{"label":"streets","value":"7"},{"label":"intersections","value":"8"}],"created":"2026-09-22T19:26:54Z","modified":"2026-09-22T19:26:54Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014sm:g034011899:03401_1899-0013/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014sm:g034011899:03401_1899-0013","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"-0.0,1705.2 195.6,1706.9 231.5,88.7 1380.0,83.0 1380.5,654.2 1613.0,652.6 1613.0,1200.8 1381.0,1199.4 1379.7,1913.0 -0.0,1913.0 -0.0,1705.2\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014sm:g034011899:03401_1899-0013/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1380.0,83.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-93.748993,32.510509]}},{"type":"Feature","properties":{"resourceCoords":[804.0,1786.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-93.747552,32.507402]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014sm:g034011899:03401_1899-0014/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Shreveport, Louisiana | 1899 | sanborn03401_004 p14","metadata":[{"label":"streets","value":"7"},{"label":"intersections","value":"10"}],"created":"2026-09-22T19:26:54Z","modified":"2026-09-22T19:26:54Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014sm:g034011899:03401_1899-0014/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014sm:g034011899:03401_1899-0014","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"472.4,633.7 239.7,633.0 245.0,61.0 1384.2,65.7 1377.5,524.0 1179.5,629.4 1194.3,1862.8 1557.0,1858.5 1557.1,1913.0 1152.2,1913.0 1152.5,1760.3 804.0,1760.0 805.2,1500.2 607.5,1726.1 607.1,1913.0 224.5,1913.0 234.6,1178.8 466.8,1182.6 472.4,633.7\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014sm:g034011899:03401_1899-0014/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[804.0,1760.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-93.745628,32.508794]}},{"type":"Feature","properties":{"resourceCoords":[245.0,61.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-93.748993,32.510509]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014sm:g034011899:03401_1899-0015__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 | 1899 | sanborn03401_004 p15 [1]","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":"7652.0"}],"created":"2026-09-22T19:26:54Z","modified":"2026-09-22T19:26:54Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014sm:g034011899:03401_1899-0015__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014sm:g034011899:03401_1899-0015","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1378.0,1913.0 1419.9,99.3 215.0,88.0 202.5,554.0 -0.0,658.7 -0.0,1913.0 368.8,1913.0 369.8,1813.4 594.2,1812.2 647.2,1760.2 680.9,1649.0 781.0,1650.0 770.7,1913.0 1378.0,1913.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014sm:g034011899:03401_1899-0015__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[808.0,88.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-93.7461233,32.5125919]}},{"type":"Feature","properties":{"resourceCoords":[215.0,88.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-93.747086,32.511878]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014sm:g034011899:03401_1899-0016__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 | 1899 | sanborn03401_004 p16 [1]","metadata":[{"label":"streets","value":"4"},{"label":"intersections","value":"4"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"4377.2"},{"label":"split_canvas_h","value":"7652.0"}],"created":"2026-09-22T19:26:54Z","modified":"2026-09-22T19:26:54Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014sm:g034011899:03401_1899-0016__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014sm:g034011899:03401_1899-0016","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"699.0,1913.0 912.0,1913.0 1068.6,1913.0 1075.6,1373.5 1094.3,0.0 690.1,0.0 686.5,77.3 105.0,69.0 90.6,1913.0 699.0,1913.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014sm:g034011899:03401_1899-0016__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[105.0,1195.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-93.743476,32.511693]}},{"type":"Feature","properties":{"resourceCoords":[105.0,69.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-93.7451137,32.513313]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014sm:g034011899:03401_1899-0016__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 | 1899 | sanborn03401_004 p16 [2]","metadata":[{"label":"streets","value":"2"},{"label":"intersections","value":"1"},{"label":"split_canvas_x","value":"4302.4"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"2149.6"},{"label":"split_canvas_h","value":"5496.8"}],"created":"2026-09-22T19:26:54Z","modified":"2026-09-22T19:26:54Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014sm:g034011899:03401_1899-0016__2/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014sm:g034011899:03401_1899-0016","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1091.8,181.2 1075.6,1373.5 1613.0,1374.2 1613.0,232.6 1269.4,233.0 1249.2,0.0 1091.8,181.2\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014sm:g034011899:03401_1899-0016__2/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[1075.6,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-93.74629354957713,32.5088899205184]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-93.74538275446139,32.50954627742326]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,1374.2],"type":"corner"},"geometry":{"type":"Point","coordinates":[-93.74339474984137,32.507584940175335]}},{"type":"Feature","properties":{"resourceCoords":[1075.6,1374.2],"type":"corner"},"geometry":{"type":"Point","coordinates":[-93.74430554495711,32.50692858327047]}},{"type":"Feature","properties":{"resourceCoords":[1269.4,233.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-93.745628,32.508794]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014sm:g034011899:03401_1899-0017__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 | 1899 | sanborn03401_004 p17 [2]","metadata":[{"label":"streets","value":"4"},{"label":"intersections","value":"4"},{"label":"split_canvas_x","value":"4109.2"},{"label":"split_canvas_y","value":"2771.6"},{"label":"split_canvas_w","value":"2342.8"},{"label":"split_canvas_h","value":"4880.4"}],"created":"2026-09-22T19:26:54Z","modified":"2026-09-22T19:26:54Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014sm:g034011899:03401_1899-0017__2/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014sm:g034011899:03401_1899-0017","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1555.2,1913.0 1555.0,1867.0 1613.0,1866.9 1613.0,944.5 1552.1,943.9 1551.3,693.0 1082.8,694.1 1069.7,1664.0 1027.4,1663.9 1027.3,1913.0 1555.2,1913.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014sm:g034011899:03401_1899-0017__2/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1069.3,1527.3],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-93.756242,32.509673]}},{"type":"Feature","properties":{"resourceCoords":[1553.0,1527.3],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-93.755511,32.508943]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014sm:g034011899:03401_1899-0017__3/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Shreveport, Louisiana | 1899 | sanborn03401_004 p17 [3]","metadata":[{"label":"streets","value":"5"},{"label":"intersections","value":"7"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"3064.4"},{"label":"split_canvas_w","value":"4110.8"},{"label":"split_canvas_h","value":"4587.6"}],"created":"2026-09-22T19:26:54Z","modified":"2026-09-22T19:26:54Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014sm:g034011899:03401_1899-0017__3/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014sm:g034011899:03401_1899-0017","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1011.6,1748.9 972.5,794.9 924.6,797.6 923.4,766.4 0.0,768.9 -0.0,840.5 45.7,838.3 77.7,1790.7 1011.6,1748.9\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014sm:g034011899:03401_1899-0017__3/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[740.8,808.1],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-93.75651,32.508218]}},{"type":"Feature","properties":{"resourceCoords":[63.0,1409.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-93.756882,32.506528]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014sm:g034011899:03401_1899-0018/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Shreveport, Louisiana | 1899 | sanborn03401_004 p18","metadata":[{"label":"streets","value":"7"},{"label":"intersections","value":"5"}],"created":"2026-09-22T19:26:54Z","modified":"2026-09-22T19:26:54Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014sm:g034011899:03401_1899-0018/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014sm:g034011899:03401_1899-0018","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"-0.0,624.0 253.3,831.4 459.5,557.0 -0.0,196.3 -0.0,-0.0 534.0,0.0 762.8,184.1 809.8,126.5 1391.8,112.7 1484.0,0.0 1613.0,0.0 1613.0,41.1 1482.7,37.4 1480.5,113.0 1527.0,112.0 1539.5,1806.5 576.3,1821.9 577.2,1913.0 79.2,1913.0 68.1,1315.1 -0.0,1331.3 -0.0,624.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014sm:g034011899:03401_1899-0018/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1527.0,595.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-93.75702,32.506666]}},{"type":"Feature","properties":{"resourceCoords":[1527.0,112.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-93.757702,32.507362]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014sm:g034011899:03401_1899-0019__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 | 1899 | sanborn03401_004 p19 [2]","metadata":[{"label":"streets","value":"6"},{"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":"7652.0"}],"created":"2026-09-22T19:26:54Z","modified":"2026-09-22T19:26:54Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014sm:g034011899:03401_1899-0019__2/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014sm:g034011899:03401_1899-0019","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"107.8,131.8 111.9,969.9 1094.1,1849.5 1037.3,1913.0 1613.0,1913.0 1613.0,1147.1 1503.0,1147.0 1537.7,50.8 595.5,50.5 594.9,139.7 107.8,131.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014sm:g034011899:03401_1899-0019__2/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[117.0,286.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-93.75739,32.50283]}},{"type":"Feature","properties":{"resourceCoords":[594.0,286.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-93.756568,32.503422]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014sm:g034011899:03401_1899-0002/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Shreveport, Louisiana | 1899 | sanborn03401_004 p2","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-22T19:26:54Z","modified":"2026-09-22T19:26:54Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014sm:g034011899:03401_1899-0002/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014sm:g034011899:03401_1899-0002","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"-0.0,-0.0 1613.0,0.0 1613.0,326.1 1402.0,321.5 1400.5,610.9 1613.0,608.5 1613.0,1188.1 1397.4,1190.5 1394.1,1816.9 1047.1,1815.3 -0.0,1792.0 -0.0,-0.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014sm:g034011899:03401_1899-0002/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-93.75899349890288,32.51201526307084]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-93.75632551003935,32.51393187872421]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-93.75364887355042,32.511244735255396]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-93.75631686241395,32.50932811960203]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014sm:g034011899:03401_1899-0020/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Shreveport, Louisiana | 1899 | sanborn03401_004 p20","metadata":[{"label":"streets","value":"8"},{"label":"intersections","value":"5"}],"created":"2026-09-22T19:26:54Z","modified":"2026-09-22T19:26:54Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014sm:g034011899:03401_1899-0020/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014sm:g034011899:03401_1899-0020","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"-0.0,-0.0 1439.2,0.0 1439.3,89.6 1507.2,90.4 1542.2,1806.0 334.6,1832.2 433.5,1913.0 -0.0,1913.0 -0.0,-0.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014sm:g034011899:03401_1899-0020/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1532.0,843.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-93.75739,32.50283]}},{"type":"Feature","properties":{"resourceCoords":[597.0,1821.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-93.757612,32.500299]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014sm:g034011899:03401_1899-0021__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 | 1899 | sanborn03401_004 p21 [1]","metadata":[{"label":"streets","value":"4"},{"label":"intersections","value":"3"},{"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":"2026-09-22T19:26:54Z","modified":"2026-09-22T19:26:54Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014sm:g034011899:03401_1899-0021__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014sm:g034011899:03401_1899-0021","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"-0.0,1582.0 899.3,1561.0 916.1,1450.1 1613.0,1770.3 1613.0,0.0 1415.8,0.0 1334.4,0.0 693.5,0.0 274.8,433.8 197.9,361.4 -0.0,538.0 247.7,752.3 -0.0,1062.9 -0.0,1582.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014sm:g034011899:03401_1899-0021__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[976.0,1055.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-93.7547811,32.4999467]}},{"type":"Feature","properties":{"resourceCoords":[899.0,1561.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-93.7549657,32.4990626]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014sm:g034011899:03401_1899-0021__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 | 1899 | sanborn03401_004 p21 [2]","metadata":[{"label":"streets","value":"2"},{"label":"intersections","value":"1"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"2774.0"},{"label":"split_canvas_h","value":"1735.2"}],"created":"2026-09-22T19:26:54Z","modified":"2026-09-22T19:26:54Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014sm:g034011899:03401_1899-0021__2/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014sm:g034011899:03401_1899-0021","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"-0.0,3.2 52.5,97.8 -0.0,87.1 0.0,175.0 274.8,433.8 590.1,107.2 -0.0,3.2\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014sm:g034011899:03401_1899-0021__2/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-93.75800548488729,32.50000998380653]}},{"type":"Feature","properties":{"resourceCoords":[693.5,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-93.75703098722674,32.501021465402054]}},{"type":"Feature","properties":{"resourceCoords":[693.5,433.8],"type":"corner"},"geometry":{"type":"Point","coordinates":[-93.75628081476425,32.500507613242576]}},{"type":"Feature","properties":{"resourceCoords":[0.0,433.8],"type":"corner"},"geometry":{"type":"Point","coordinates":[-93.7572553124248,32.49949613164705]}},{"type":"Feature","properties":{"resourceCoords":[-28.0,-1.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-93.7580469,32.4999699]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014sm:g034011899:03401_1899-0022__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 | 1899 | sanborn03401_004 p22 [2]","metadata":[{"label":"streets","value":"2"},{"label":"intersections","value":"1"},{"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":"2026-09-22T19:26:54Z","modified":"2026-09-22T19:26:54Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014sm:g034011899:03401_1899-0022__2/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014sm:g034011899:03401_1899-0022","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"767.8,-0.0 796.8,100.7 546.6,222.8 548.6,539.3 239.4,546.0 242.1,843.0 0.0,846.5 -0.0,1913.0 1042.0,1913.0 1323.0,1913.0 1613.0,1913.0 1613.0,1407.3 1410.6,996.6 1367.1,795.0 1613.0,-0.0 767.8,-0.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014sm:g034011899:03401_1899-0022__2/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-93.75646162450877,32.49988909196929]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-93.753233968354,32.49855973846772]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-93.7551037632089,32.49533202487289]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-93.75833141936367,32.496661378374455]}},{"type":"Feature","properties":{"resourceCoords":[1515.0,282.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-93.7537057,32.4981647]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014sm:g034011899:03401_1899-0023/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Shreveport, Louisiana | 1899 | sanborn03401_004 p23","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-22T19:26:54Z","modified":"2026-09-22T19:26:54Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014sm:g034011899:03401_1899-0023/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014sm:g034011899:03401_1899-0023","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"102.0,1913.0 253.4,1599.6 248.4,1138.4 280.4,975.1 580.8,606.4 838.3,388.4 870.7,321.2 752.7,265.1 757.1,0.0 1421.7,0.0 1436.0,944.2 1613.0,941.6 1613.0,1913.0 102.0,1913.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014sm:g034011899:03401_1899-0023/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-93.75513973648984,32.49917049733591]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-93.75159972724005,32.499148329561166]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-93.75163068054718,32.49558233525942]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-93.75517068979697,32.495604503034166]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014sm:g034011899:03401_1899-0024__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 | 1899 | sanborn03401_004 p24 [2]","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"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":"3820.8"}],"created":"2026-09-22T19:26:54Z","modified":"2026-09-22T19:26:54Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014sm:g034011899:03401_1899-0024__2/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014sm:g034011899:03401_1899-0024","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1613.0,945.0 1613.0,0.0 -0.0,-0.0 -0.0,955.2 1387.7,952.6 1613.0,952.2 1613.0,945.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014sm:g034011899:03401_1899-0024__2/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-93.752019750974,32.499160926408656]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-93.74849930563842,32.499184375106324]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,955.2],"type":"corner"},"geometry":{"type":"Point","coordinates":[-93.74848296017392,32.4974140335105]}},{"type":"Feature","properties":{"resourceCoords":[0.0,955.2],"type":"corner"},"geometry":{"type":"Point","coordinates":[-93.75200340550948,32.497390584812834]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014sm:g034011899:03401_1899-0025__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 | 1899 | sanborn03401_004 p25 [1]","metadata":[{"label":"streets","value":"4"},{"label":"intersections","value":"3"},{"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":"2026-09-22T19:26:54Z","modified":"2026-09-22T19:26:54Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014sm:g034011899:03401_1899-0025__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014sm:g034011899:03401_1899-0025","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"864.7,1913.0 854.5,507.5 1613.0,499.9 1613.0,0.0 946.2,0.0 944.7,86.9 64.0,87.3 65.5,0.0 -0.0,-0.0 -0.0,1913.0 864.7,1913.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014sm:g034011899:03401_1899-0025__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[477.0,1073.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-93.744499,32.496322]}},{"type":"Feature","properties":{"resourceCoords":[477.0,87.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-93.744498,32.498151]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014sm:g034011899:03401_1899-0026__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 | 1899 | sanborn03401_004 p26 [2]","metadata":[{"label":"streets","value":"5"},{"label":"intersections","value":"3"},{"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":"4227.2"}],"created":"2026-09-22T19:26:54Z","modified":"2026-09-22T19:26:54Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014sm:g034011899:03401_1899-0026__2/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014sm:g034011899:03401_1899-0026","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"-0.0,1056.8 1613.0,1056.0 1613.0,353.1 992.7,349.8 994.1,253.1 395.9,259.1 405.7,0.0 300.8,0.0 272.8,109.8 221.1,161.5 -0.0,164.9 -0.0,1056.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014sm:g034011899:03401_1899-0026__2/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[990.0,667.9],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-93.742005,32.510193]}},{"type":"Feature","properties":{"resourceCoords":[1547.0,667.9],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-93.741079,32.510866]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014sm:g034011899:03401_1899-0027__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 | 1899 | sanborn03401_004 p27 [1]","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"3539.6"},{"label":"split_canvas_h","value":"4202.0"}],"created":"2026-09-22T19:26:54Z","modified":"2026-09-22T19:26:54Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014sm:g034011899:03401_1899-0027__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014sm:g034011899:03401_1899-0027","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"-0.0,-0.0 -0.0,1030.0 884.6,1013.9 884.9,0.0 -0.0,-0.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014sm:g034011899:03401_1899-0027__1/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-93.74536532114337,32.500065851319334]}},{"type":"Feature","properties":{"resourceCoords":[884.9,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-93.74342897187965,32.50003594254142]}},{"type":"Feature","properties":{"resourceCoords":[884.9,1050.5],"type":"corner"},"geometry":{"type":"Point","coordinates":[-93.74347079061309,32.49808281601673]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1050.5],"type":"corner"},"geometry":{"type":"Point","coordinates":[-93.7454071398768,32.498112724794645]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014sm:g034011899:03401_1899-0028__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 | 1899 | sanborn03401_004 p28 [1]","metadata":[{"label":"streets","value":"4"},{"label":"intersections","value":"3"},{"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":"2026-09-22T19:26:54Z","modified":"2026-09-22T19:26:54Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014sm:g034011899:03401_1899-0028__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014sm:g034011899:03401_1899-0028","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"691.4,1913.0 690.6,1583.0 597.8,1585.0 474.5,1434.3 689.8,1258.1 689.0,917.3 1299.2,916.3 1613.0,646.7 1613.0,0.0 -0.0,-0.0 -0.0,1913.0 691.4,1913.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014sm:g034011899:03401_1899-0028__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[219.0,1098.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-93.761044,32.506337]}},{"type":"Feature","properties":{"resourceCoords":[219.0,1587.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-93.761039,32.505415]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014sm:g034011899:03401_1899-0028__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 | 1899 | sanborn03401_004 p28 [2]","metadata":[{"label":"streets","value":"3"},{"label":"intersections","value":"2"},{"label":"split_canvas_x","value":"2756.0"},{"label":"split_canvas_y","value":"3663.2"},{"label":"split_canvas_w","value":"3696.0"},{"label":"split_canvas_h","value":"3988.8"}],"created":"2026-09-22T19:26:54Z","modified":"2026-09-22T19:26:54Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014sm:g034011899:03401_1899-0028__2/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014sm:g034011899:03401_1899-0028","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1613.0,915.8 689.0,917.3 691.4,1913.0 1173.0,1913.0 1383.0,1913.0 1613.0,1913.0 1613.0,915.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014sm:g034011899:03401_1899-0028__2/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1127.5,1469.3],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-93.7652345,32.495722]}},{"type":"Feature","properties":{"resourceCoords":[1127.5,953.8],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-93.765262,32.496715]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014sm:g034011899:03401_1899-0003/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Shreveport, Louisiana | 1899 | sanborn03401_004 p3","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-22T19:26:54Z","modified":"2026-09-22T19:26:54Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014sm:g034011899:03401_1899-0003/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014sm:g034011899:03401_1899-0003","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"211.3,1221.6 208.3,653.3 -0.0,656.8 -0.0,373.1 206.9,376.5 205.2,56.8 -0.0,57.9 -0.0,-0.0 1613.0,0.0 1613.0,43.1 1258.1,44.0 1264.5,701.6 1557.7,697.8 1564.9,1837.3 -0.0,1839.2 -0.0,1225.0 195.9,1226.0 211.3,1221.6\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014sm:g034011899:03401_1899-0003/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-93.75675377245462,32.51376647152848]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-93.75402026687163,32.51570915128135]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-93.75130718180601,32.51295607038025]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-93.754040687389,32.511013390627376]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014sm:g034011899:03401_1899-0030__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 | 1899 | sanborn03401_004 p30 [2]","metadata":[{"label":"streets","value":"4"},{"label":"intersections","value":"3"},{"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":"2026-09-22T19:26:54Z","modified":"2026-09-22T19:26:54Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014sm:g034011899:03401_1899-0030__2/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014sm:g034011899:03401_1899-0030","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1613.0,-0.0 434.8,0.0 434.1,535.1 0.0,537.6 0.0,1040.2 259.2,1040.0 263.2,1202.9 403.4,1202.2 526.3,1415.9 530.1,1913.0 610.0,1913.0 794.0,1913.0 1613.0,1913.0 1613.0,-0.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014sm:g034011899:03401_1899-0030__2/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[607.0,1079.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-93.763163,32.493752]}},{"type":"Feature","properties":{"resourceCoords":[791.0,1199.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-93.763153,32.4933232]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014sm:g034011899:03401_1899-0004/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Shreveport, Louisiana | 1899 | sanborn03401_004 p4","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"9"}],"created":"2026-09-22T19:26:54Z","modified":"2026-09-22T19:26:54Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014sm:g034011899:03401_1899-0004/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014sm:g034011899:03401_1899-0004","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"293.7,656.3 -0.0,659.4 0.0,-0.0 1613.0,0.0 1613.0,656.4 1432.8,656.5 1429.0,1799.0 290.0,1799.0 293.7,656.3\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014sm:g034011899:03401_1899-0004/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1429.0,1799.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-93.749573,32.514381]}},{"type":"Feature","properties":{"resourceCoords":[290.0,1799.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-93.751496,32.513007]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014sm:g034011899:03401_1899-0005/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Shreveport, Louisiana | 1899 | sanborn03401_004 p5","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"10"}],"created":"2026-09-22T19:26:54Z","modified":"2026-09-22T19:26:54Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014sm:g034011899:03401_1899-0005/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014sm:g034011899:03401_1899-0005","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"231.0,1795.0 239.8,660.7 418.7,661.4 421.6,9.6 1404.1,0.0 1388.0,1795.0 231.0,1795.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014sm:g034011899:03401_1899-0005/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1388.0,1795.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-93.747613,32.515794]}},{"type":"Feature","properties":{"resourceCoords":[231.0,1795.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-93.749573,32.514381]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014sm:g034011899:03401_1899-0006/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Shreveport, Louisiana | 1899 | sanborn03401_004 p6","metadata":[{"label":"streets","value":"5"},{"label":"intersections","value":"7"}],"created":"2026-09-22T19:26:54Z","modified":"2026-09-22T19:26:54Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014sm:g034011899:03401_1899-0006/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014sm:g034011899:03401_1899-0006","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"65.3,57.4 -0.0,58.1 0.0,-0.0 1613.0,0.0 1613.0,1913.0 652.1,1913.0 651.5,1823.5 70.0,1833.0 65.3,57.4\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014sm:g034011899:03401_1899-0006/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[70.0,692.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-93.7492607,32.517458]}},{"type":"Feature","properties":{"resourceCoords":[70.0,1833.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-93.747613,32.515794]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014sm:g034011899:03401_1899-0007/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Shreveport, Louisiana | 1899 | sanborn03401_004 p7","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-22T19:26:54Z","modified":"2026-09-22T19:26:54Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014sm:g034011899:03401_1899-0007/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014sm:g034011899:03401_1899-0007","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"266.2,550.4 261.8,58.9 1613.0,56.0 1613.0,1811.9 594.6,1814.6 467.8,1879.8 862.7,1447.0 -0.0,1439.6 -0.0,551.6 266.2,550.4\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014sm:g034011899:03401_1899-0007/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-93.75524715082715,32.51048016618685]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-93.75252006493862,32.512414097892076]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-93.74981929460704,32.50966738351611]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-93.75254638049556,32.507733451810886]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014sm:g034011899:03401_1899-0008/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Shreveport, Louisiana | 1899 | sanborn03401_004 p8","metadata":[{"label":"streets","value":"7"},{"label":"intersections","value":"12"}],"created":"2026-09-22T19:26:54Z","modified":"2026-09-22T19:26:54Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014sm:g034011899:03401_1899-0008/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014sm:g034011899:03401_1899-0008","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"223.7,82.4 1366.0,86.1 1360.0,1833.0 218.7,1835.8 223.7,82.4\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014sm:g034011899:03401_1899-0008/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[796.0,674.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-93.750651,32.512164]}},{"type":"Feature","properties":{"resourceCoords":[1360.0,1833.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-93.748039,32.511197]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014sm:g034011899:03401_1899-0009/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Shreveport, Louisiana | 1899 | sanborn03401_004 p9","metadata":[{"label":"streets","value":"7"},{"label":"intersections","value":"12"}],"created":"2026-09-22T19:26:54Z","modified":"2026-09-22T19:26:54Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014sm:g034011899:03401_1899-0009/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014sm:g034011899:03401_1899-0009","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"230.1,84.3 1389.7,77.5 1380.8,1833.5 228.1,1845.2 230.1,84.3\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014sm:g034011899:03401_1899-0009/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1389.0,668.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-93.7477619,32.5142494]}},{"type":"Feature","properties":{"resourceCoords":[805.0,81.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-93.749573,32.514381]}}]}}]}