{"id":"https://data.mapsnap.org/runs/v1.3/iiif/chronoscope/sanborn03376_025.main.iiif.json","type":"AnnotationPage","@context":["http://www.w3.org/ns/anno.jsonld"],"label":"New Orleans, Louisiana | 1950 | mapsnap generated fit (2026-09-21)","creator":{"type":"Software","name":"mapsnap","homepage":"https://mapsnap.org"},"rights":"https://opendatacommons.org/licenses/odbl/1-0/","metadata":[{"label":"generated","value":"2026-09-21"},{"label":"run","value":"corpus-v1"},{"label":"pages","value":"93"},{"label":"placed","value":"54"},{"label":"unplaced","value":"39"},{"label":"fit sources","value":"georef 55, georef-snap 30, georef:contradicted 1, georef-street 1"},{"label":"key map","value":"georeferenced"},{"label":"split sheets","value":"4 sheet(s) cut into 8 panels"},{"label":"unplaced pages","value":"p0 (tier 4, 29.95054,-90.06798 +/-1583m); p53S__1 (tier 1, 29.95700,-90.06247 +/-213m); p54S__1 (tier 1, 29.94439,-90.06818 +/-216m); p54S__2 (tier 1, 29.94320,-90.06523 +/-219m); p54__1 (tier 1, 29.94426,-90.06695 +/-212m); p54__2 (tier 1, 29.94360,-90.06661 +/-228m)"}],"items":[{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014nm:g03376195001A:03376_01A_1950-0001/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"New Orleans, Louisiana | 1950 | sanborn03376_025 p1","metadata":[{"label":"streets","value":"5"},{"label":"intersections","value":"6"}],"created":"2026-09-21T17:11:25Z","modified":"2026-09-21T17:11:25Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014nm:g03376195001A:03376_01A_1950-0001/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014nm:g03376195001A:03376_01A_1950-0001","type":"ImageService3","width":1407,"height":2038},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"305.8,1786.2 296.1,0.0 1064.8,7.8 1106.0,1783.0 305.8,1786.2\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014nm:g03376195001A:03376_01A_1950-0001/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[302.0,270.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-90.0760493,29.9469191]}},{"type":"Feature","properties":{"resourceCoords":[1106.0,1783.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-90.0725031,29.9476356]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014nm:g03376195001A:03376_01A_1950-0010S/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"New Orleans, Louisiana | 1950 | sanborn03376_025 p10S","metadata":[{"label":"streets","value":"8"},{"label":"intersections","value":"15"}],"created":"2026-09-21T17:11:25Z","modified":"2026-09-21T17:11:25Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014nm:g03376195001A:03376_01A_1950-0010S/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014nm:g03376195001A:03376_01A_1950-0010S","type":"ImageService3","width":1417,"height":2038},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"408.2,1310.6 408.0,333.4 1233.2,349.9 1222.6,1147.5 1222.6,1147.5 1217.0,1579.0 408.2,1565.5 408.2,1310.6 408.2,1310.6\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014nm:g03376195001A:03376_01A_1950-0010S/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[662.0,711.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-90.0709639,29.9483217]}},{"type":"Feature","properties":{"resourceCoords":[105.0,1919.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-90.0687796,29.9467893]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014nm:g03376195001A:03376_01A_1950-0011/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"New Orleans, Louisiana | 1950 | sanborn03376_025 p11","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T17:11:25Z","modified":"2026-09-21T17:11:25Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014nm:g03376195001A:03376_01A_1950-0011/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014nm:g03376195001A:03376_01A_1950-0011","type":"ImageService3","width":1417,"height":2038},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"0.0,661.4 91.7,662.3 88.3,408.6 1333.3,403.4 1159.0,1451.3 0.0,1475.0 0.0,661.4\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014nm:g03376195001A:03376_01A_1950-0011/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-90.07272963880388,29.949804948807465]}},{"type":"Feature","properties":{"resourceCoords":[1417.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-90.07197535237243,29.95227871094109]}},{"type":"Feature","properties":{"resourceCoords":[1417.0,2038.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-90.06789787339756,29.95133210078128]}},{"type":"Feature","properties":{"resourceCoords":[0.0,2038.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-90.068652159829,29.948858338647653]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014nm:g03376195001A:03376_01A_1950-0012/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"New Orleans, Louisiana | 1950 | sanborn03376_025 p12","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T17:11:25Z","modified":"2026-09-21T17:11:25Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014nm:g03376195001A:03376_01A_1950-0012/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014nm:g03376195001A:03376_01A_1950-0012","type":"ImageService3","width":1401,"height":2038},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"395.7,1731.5 116.0,521.9 540.6,374.4 1214.5,370.5 1216.2,1399.2 1337.5,1400.1 1337.0,1459.9 1216.3,1458.1 704.5,1597.2 395.7,1731.5\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014nm:g03376195001A:03376_01A_1950-0012/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-90.07222416093042,29.95235375654798]}},{"type":"Feature","properties":{"resourceCoords":[1401.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-90.0704515971732,29.95437918890122]}},{"type":"Feature","properties":{"resourceCoords":[1401.0,2038.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-90.06707490807985,29.952129302338914]}},{"type":"Feature","properties":{"resourceCoords":[0.0,2038.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-90.06884747183706,29.95010386998567]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014nm:g03376195001A:03376_01A_1950-0013/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"New Orleans, Louisiana | 1950 | sanborn03376_025 p13","metadata":[{"label":"streets","value":"8"},{"label":"intersections","value":"15"}],"created":"2026-09-21T17:11:25Z","modified":"2026-09-21T17:11:25Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014nm:g03376195001A:03376_01A_1950-0013/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014nm:g03376195001A:03376_01A_1950-0013","type":"ImageService3","width":1420,"height":2038},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"44.0,2038.0 41.6,1031.8 -0.0,1032.3 0.0,-0.0 176.0,0.0 1273.2,508.9 1266.8,1575.0 163.2,2038.0 44.0,2038.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014nm:g03376195001A:03376_01A_1950-0013/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[734.0,1572.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-90.0682564,29.954106]}},{"type":"Feature","properties":{"resourceCoords":[1270.0,1042.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-90.0684549,29.9554909]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014nm:g03376195001A:03376_01A_1950-0014/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"New Orleans, Louisiana | 1950 | sanborn03376_025 p14","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"9"}],"created":"2026-09-21T17:11:25Z","modified":"2026-09-21T17:11:25Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014nm:g03376195001A:03376_01A_1950-0014/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014nm:g03376195001A:03376_01A_1950-0014","type":"ImageService3","width":1405,"height":2038},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1221.0,1571.9 159.8,1569.9 162.2,491.9 1222.9,493.8 1221.0,1571.9\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014nm:g03376195001A:03376_01A_1950-0014/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[703.0,1031.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-90.0677528,29.9562749]}},{"type":"Feature","properties":{"resourceCoords":[161.0,1031.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-90.0684549,29.9554909]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014nm:g03376195001A:03376_01A_1950-0015/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"New Orleans, Louisiana | 1950 | sanborn03376_025 p15","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"7"}],"created":"2026-09-21T17:11:25Z","modified":"2026-09-21T17:11:25Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014nm:g03376195001A:03376_01A_1950-0015/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014nm:g03376195001A:03376_01A_1950-0015","type":"ImageService3","width":1420,"height":2038},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"318.7,0.0 1359.6,0.0 1358.4,227.0 1082.4,225.7 1061.5,1669.9 715.0,1763.2 711.1,2038.0 306.2,2038.0 318.7,0.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014nm:g03376195001A:03376_01A_1950-0015/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[715.0,233.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-90.068982,29.946058]}},{"type":"Feature","properties":{"resourceCoords":[715.0,1763.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-90.0658675,29.9453563]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014nm:g03376195001A:03376_01A_1950-0016/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"New Orleans, Louisiana | 1950 | sanborn03376_025 p16","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T17:11:25Z","modified":"2026-09-21T17:11:25Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014nm:g03376195001A:03376_01A_1950-0016/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014nm:g03376195001A:03376_01A_1950-0016","type":"ImageService3","width":1394,"height":2038},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1280.7,1435.9 0.0,1809.7 0.0,362.0 274.9,360.3 271.7,0.0 1258.2,0.0 1280.7,1435.9\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014nm:g03376195001A:03376_01A_1950-0016/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-90.06953471929744,29.94688401839569]}},{"type":"Feature","properties":{"resourceCoords":[1394.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-90.06876326749433,29.949344527850158]}},{"type":"Feature","properties":{"resourceCoords":[1394.0,2038.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-90.06464083973341,29.948360372643712]}},{"type":"Feature","properties":{"resourceCoords":[0.0,2038.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-90.06541229153652,29.945899863189243]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014nm:g03376195001A:03376_01A_1950-0017/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"New Orleans, Louisiana | 1950 | sanborn03376_025 p17","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T17:11:25Z","modified":"2026-09-21T17:11:25Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014nm:g03376195001A:03376_01A_1950-0017/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014nm:g03376195001A:03376_01A_1950-0017","type":"ImageService3","width":1407,"height":2038},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"896.5,1694.2 213.6,1873.8 229.2,437.5 123.2,434.6 132.0,0.0 1276.7,0.0 1143.9,743.9 896.5,1694.2\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014nm:g03376195001A:03376_01A_1950-0017/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-90.06984419660952,29.948885197149455]}},{"type":"Feature","properties":{"resourceCoords":[1407.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-90.0691441090132,29.95138572042387]}},{"type":"Feature","properties":{"resourceCoords":[1407.0,2038.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-90.0649932619754,29.950500876405542]}},{"type":"Feature","properties":{"resourceCoords":[0.0,2038.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-90.06569334957173,29.94800035313113]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014nm:g03376195001A:03376_01A_1950-0018/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"New Orleans, Louisiana | 1950 | sanborn03376_025 p18","metadata":[{"label":"streets","value":"11"},{"label":"intersections","value":"26"}],"created":"2026-09-21T17:11:25Z","modified":"2026-09-21T17:11:25Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014nm:g03376195001A:03376_01A_1950-0018/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014nm:g03376195001A:03376_01A_1950-0018","type":"ImageService3","width":1403,"height":2038},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"366.3,752.8 464.2,200.0 836.8,200.3 1312.2,274.4 734.3,1527.2 120.9,1688.5 366.3,752.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014nm:g03376195001A:03376_01A_1950-0018/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[692.0,803.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-90.0674906,29.9511568]}},{"type":"Feature","properties":{"resourceCoords":[464.0,200.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-90.0688546,29.9510142]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014nm:g03376195001A:03376_01A_1950-0019/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"New Orleans, Louisiana | 1950 | sanborn03376_025 p19","metadata":[{"label":"streets","value":"10"},{"label":"intersections","value":"18"}],"created":"2026-09-21T17:11:25Z","modified":"2026-09-21T17:11:25Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014nm:g03376195001A:03376_01A_1950-0019/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014nm:g03376195001A:03376_01A_1950-0019","type":"ImageService3","width":1407,"height":2038},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"29.2,997.1 148.7,997.2 148.9,464.2 1261.2,463.8 1261.2,1281.2 26.1,1292.3 29.2,997.1\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014nm:g03376195001A:03376_01A_1950-0019/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[723.0,464.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-90.0682564,29.954106]}},{"type":"Feature","properties":{"resourceCoords":[723.0,1605.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-90.066353,29.9528203]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014nm:g03376195001A:03376_01A_1950-0002/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"New Orleans, Louisiana | 1950 | sanborn03376_025 p2","metadata":[{"label":"streets","value":"7"},{"label":"intersections","value":"11"}],"created":"2026-09-21T17:11:25Z","modified":"2026-09-21T17:11:25Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014nm:g03376195001A:03376_01A_1950-0002/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014nm:g03376195001A:03376_01A_1950-0002","type":"ImageService3","width":1413,"height":2038},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"12.4,0.0 1116.7,0.0 1151.8,2038.0 76.2,2038.0 12.4,0.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014nm:g03376195001A:03376_01A_1950-0002/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[615.0,1793.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-90.0722271,29.9485861]}},{"type":"Feature","properties":{"resourceCoords":[615.0,255.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-90.0753256,29.9493252]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014nm:g03376195001A:03376_01A_1950-0020/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"New Orleans, Louisiana | 1950 | sanborn03376_025 p20","metadata":[{"label":"streets","value":"7"},{"label":"intersections","value":"10"}],"created":"2026-09-21T17:11:25Z","modified":"2026-09-21T17:11:25Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014nm:g03376195001A:03376_01A_1950-0020/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014nm:g03376195001A:03376_01A_1950-0020","type":"ImageService3","width":1414,"height":2038},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1254.3,1614.5 712.2,1789.4 711.0,1607.6 174.8,1601.0 168.3,463.4 1232.3,456.8 1254.3,1614.5\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014nm:g03376195001A:03376_01A_1950-0020/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[712.0,997.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-90.0659641,29.9550602]}},{"type":"Feature","properties":{"resourceCoords":[712.0,460.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-90.0668527,29.9556675]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014nm:g03376195001A:03376_01A_1950-0021/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"New Orleans, Louisiana | 1950 | sanborn03376_025 p21","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"9"}],"created":"2026-09-21T17:11:25Z","modified":"2026-09-21T17:11:25Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014nm:g03376195001A:03376_01A_1950-0021/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014nm:g03376195001A:03376_01A_1950-0021","type":"ImageService3","width":1417,"height":2038},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1289.2,498.1 1285.7,1556.2 206.0,1566.0 206.0,498.1 1289.2,498.1\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014nm:g03376195001A:03376_01A_1950-0021/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[750.0,1566.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-90.0654657,29.9572103]}},{"type":"Feature","properties":{"resourceCoords":[206.0,1566.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-90.0661788,29.9564171]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014nm:g03376195001A:03376_01A_1950-0022/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"New Orleans, Louisiana | 1950 | sanborn03376_025 p22","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"9"}],"created":"2026-09-21T17:11:25Z","modified":"2026-09-21T17:11:25Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014nm:g03376195001A:03376_01A_1950-0022/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014nm:g03376195001A:03376_01A_1950-0022","type":"ImageService3","width":1421,"height":2038},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"151.0,466.5 1239.8,453.9 1245.8,994.5 1084.6,997.0 1085.7,1793.6 1421.0,1793.2 1421.0,2038.0 967.9,2038.0 972.0,1625.2 168.8,1620.1 151.0,466.5\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014nm:g03376195001A:03376_01A_1950-0022/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[701.0,1002.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-90.0645689,29.9566052]}},{"type":"Feature","properties":{"resourceCoords":[159.0,1002.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-90.0652757,29.9558231]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014nm:g03376195001A:03376_01A_1950-0023/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"New Orleans, Louisiana | 1950 | sanborn03376_025 p23","metadata":[{"label":"streets","value":"4"},{"label":"intersections","value":"3"}],"created":"2026-09-21T17:11:25Z","modified":"2026-09-21T17:11:25Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014nm:g03376195001A:03376_01A_1950-0023/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014nm:g03376195001A:03376_01A_1950-0023","type":"ImageService3","width":1417,"height":2038},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"0.0,1927.9 314.5,717.5 733.5,471.2 1142.0,387.2 1113.0,950.9 230.1,2038.0 0.0,2038.0 0.0,1927.9\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014nm:g03376195001A:03376_01A_1950-0023/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1142.0,387.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-90.0658753,29.9461263]}},{"type":"Feature","properties":{"resourceCoords":[325.0,558.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-90.0658541,29.9445852]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014nm:g03376195001A:03376_01A_1950-0024/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"New Orleans, Louisiana | 1950 | sanborn03376_025 p24","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T17:11:25Z","modified":"2026-09-21T17:11:25Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014nm:g03376195001A:03376_01A_1950-0024/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014nm:g03376195001A:03376_01A_1950-0024","type":"ImageService3","width":1417,"height":2038},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1417.0,1116.2 1384.5,1087.5 1387.6,1153.7 1417.0,1148.9 1417.0,2038.0 0.0,2038.0 0.0,1140.4 67.9,1122.1 72.0,551.6 1417.0,202.4 1417.0,1116.2\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014nm:g03376195001A:03376_01A_1950-0024/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-90.06704104850581,29.946235498922782]}},{"type":"Feature","properties":{"resourceCoords":[1417.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-90.06634080540883,29.948768825793394]}},{"type":"Feature","properties":{"resourceCoords":[1417.0,2038.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-90.06216529384618,29.947890007610297]}},{"type":"Feature","properties":{"resourceCoords":[0.0,2038.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-90.06286553694316,29.945356680739685]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014nm:g03376195001A:03376_01A_1950-0025/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"New Orleans, Louisiana | 1950 | sanborn03376_025 p25","metadata":[{"label":"streets","value":"9"},{"label":"intersections","value":"17"}],"created":"2026-09-21T17:11:25Z","modified":"2026-09-21T17:11:25Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014nm:g03376195001A:03376_01A_1950-0025/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014nm:g03376195001A:03376_01A_1950-0025","type":"ImageService3","width":1417,"height":2038},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"522.9,2022.8 140.9,1065.0 668.7,675.9 1232.5,261.3 1185.7,1366.6 1417.0,1374.8 1417.0,2038.0 565.8,2038.0 565.8,2038.0 522.9,2022.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014nm:g03376195001A:03376_01A_1950-0025/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[669.0,676.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-90.0659476,29.9497429]}},{"type":"Feature","properties":{"resourceCoords":[111.0,1089.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-90.0659219,29.9486188]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014nm:g03376195001A:03376_01A_1950-0026/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"New Orleans, Louisiana | 1950 | sanborn03376_025 p26","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T17:11:25Z","modified":"2026-09-21T17:11:25Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014nm:g03376195001A:03376_01A_1950-0026/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014nm:g03376195001A:03376_01A_1950-0026","type":"ImageService3","width":1417,"height":2038},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1235.0,0.0 1232.5,1172.1 1417.0,1115.7 1417.0,2038.0 -0.0,2038.0 29.9,0.0 1235.0,0.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014nm:g03376195001A:03376_01A_1950-0026/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-90.06782034349861,29.95212066090389]}},{"type":"Feature","properties":{"resourceCoords":[1417.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-90.06595331678744,29.95423452582212]}},{"type":"Feature","properties":{"resourceCoords":[1417.0,2038.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-90.06246899798202,29.95189149211435]}},{"type":"Feature","properties":{"resourceCoords":[0.0,2038.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-90.06433602469319,29.94977762719612]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014nm:g03376195001A:03376_01A_1950-0027/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"New Orleans, Louisiana | 1950 | sanborn03376_025 p27","metadata":[{"label":"streets","value":"8"},{"label":"intersections","value":"16"}],"created":"2026-09-21T17:11:25Z","modified":"2026-09-21T17:11:25Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014nm:g03376195001A:03376_01A_1950-0027/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014nm:g03376195001A:03376_01A_1950-0027","type":"ImageService3","width":1405,"height":2038},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"152.8,1318.0 -0.0,1318.0 0.0,0.0 150.7,0.0 151.4,0.0 1405.0,0.0 1405.0,139.6 1312.5,139.8 1303.3,1861.8 156.1,1864.5 152.8,1318.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014nm:g03376195001A:03376_01A_1950-0027/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[764.0,1318.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-90.0657717,29.9600819]}},{"type":"Feature","properties":{"resourceCoords":[445.0,1318.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-90.0661833,29.9596241]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014nm:g03376195001A:03376_01A_1950-0028/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"New Orleans, Louisiana | 1950 | sanborn03376_025 p28","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T17:11:25Z","modified":"2026-09-21T17:11:25Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014nm:g03376195001A:03376_01A_1950-0028/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014nm:g03376195001A:03376_01A_1950-0028","type":"ImageService3","width":1417,"height":2038},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"141.9,1850.8 142.2,136.3 234.2,136.2 233.4,0.0 1249.3,0.0 1238.5,1847.5 141.9,1850.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014nm:g03376195001A:03376_01A_1950-0028/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-90.06742563015396,29.962134546369857]}},{"type":"Feature","properties":{"resourceCoords":[1417.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-90.06559004627863,29.964183085654998]}},{"type":"Feature","properties":{"resourceCoords":[1417.0,2038.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-90.06221306880944,29.961879740473382]}},{"type":"Feature","properties":{"resourceCoords":[0.0,2038.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-90.06404865268478,29.95983120118824]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014nm:g03376195001A:03376_01A_1950-0029/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"New Orleans, Louisiana | 1950 | sanborn03376_025 p29","metadata":[{"label":"streets","value":"9"},{"label":"intersections","value":"17"}],"created":"2026-09-21T17:11:25Z","modified":"2026-09-21T17:11:25Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014nm:g03376195001A:03376_01A_1950-0029/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014nm:g03376195001A:03376_01A_1950-0029","type":"ImageService3","width":1405,"height":2038},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"161.2,1239.3 158.9,174.3 1297.5,170.3 1295.3,1863.5 1405.0,1863.7 1405.0,2038.0 -0.0,2038.0 -0.0,1241.5 161.2,1239.3\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014nm:g03376195001A:03376_01A_1950-0029/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[763.0,708.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-90.0639742,29.9588693]}},{"type":"Feature","properties":{"resourceCoords":[447.0,174.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-90.0652762,29.9590151]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014nm:g03376195001A:03376_01A_1950-0003/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"New Orleans, Louisiana | 1950 | sanborn03376_025 p3","metadata":[{"label":"streets","value":"8"},{"label":"intersections","value":"14"}],"created":"2026-09-21T17:11:25Z","modified":"2026-09-21T17:11:25Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014nm:g03376195001A:03376_01A_1950-0003/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014nm:g03376195001A:03376_01A_1950-0003","type":"ImageService3","width":1407,"height":2038},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1407.0,0.0 1407.0,1796.2 142.0,1781.0 142.8,2029.7 0.0,2027.2 0.0,0.0 1407.0,0.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014nm:g03376195001A:03376_01A_1950-0003/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[739.0,996.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-90.0731573,29.9511849]}},{"type":"Feature","properties":{"resourceCoords":[864.0,255.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-90.0746074,29.9517446]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014nm:g03376195001A:03376_01A_1950-0030/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"New Orleans, Louisiana | 1950 | sanborn03376_025 p30","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"7"}],"created":"2026-09-21T17:11:25Z","modified":"2026-09-21T17:11:25Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014nm:g03376195001A:03376_01A_1950-0030/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014nm:g03376195001A:03376_01A_1950-0030","type":"ImageService3","width":1417,"height":2038},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"147.0,170.0 1244.8,171.6 1210.5,2038.0 241.4,2038.0 242.6,1868.7 132.7,1867.7 147.0,170.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014nm:g03376195001A:03376_01A_1950-0030/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[695.0,1254.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-90.0616569,29.9598338]}},{"type":"Feature","properties":{"resourceCoords":[147.0,170.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-90.064175,29.960248]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014nm:g03376195001A:03376_01A_1950-0031/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"New Orleans, Louisiana | 1950 | sanborn03376_025 p31","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T17:11:25Z","modified":"2026-09-21T17:11:25Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014nm:g03376195001A:03376_01A_1950-0031/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014nm:g03376195001A:03376_01A_1950-0031","type":"ImageService3","width":1401,"height":2038},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"237.6,-0.0 1401.0,-0.0 1401.0,2038.0 292.6,2038.0 305.2,1676.0 254.2,1676.0 237.6,-0.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014nm:g03376195001A:03376_01A_1950-0031/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-90.0579908686278,29.962467968251467]}},{"type":"Feature","properties":{"resourceCoords":[1401.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-90.05567977312562,29.96086709575179]}},{"type":"Feature","properties":{"resourceCoords":[1401.0,2038.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-90.05834887116686,29.95793389222321]}},{"type":"Feature","properties":{"resourceCoords":[0.0,2038.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-90.06065996666904,29.959534764722886]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014nm:g03376195001A:03376_01A_1950-0032/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"New Orleans, Louisiana | 1950 | sanborn03376_025 p32","metadata":[{"label":"streets","value":"7"},{"label":"intersections","value":"10"}],"created":"2026-09-21T17:11:25Z","modified":"2026-09-21T17:11:25Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014nm:g03376195001A:03376_01A_1950-0032/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014nm:g03376195001A:03376_01A_1950-0032","type":"ImageService3","width":1417,"height":2038},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"144.4,1880.6 147.6,1345.8 328.9,1343.4 151.0,804.0 148.1,-0.0 1417.0,-0.0 1417.0,1675.1 966.5,1681.5 1028.2,1870.0 144.4,1880.6\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014nm:g03376195001A:03376_01A_1950-0032/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1028.0,1870.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-90.0641926,29.9526117]}},{"type":"Feature","properties":{"resourceCoords":[151.0,804.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-90.0642344,29.9551394]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014nm:g03376195001A:03376_01A_1950-0033/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"New Orleans, Louisiana | 1950 | sanborn03376_025 p33","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"9"}],"created":"2026-09-21T17:11:25Z","modified":"2026-09-21T17:11:25Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014nm:g03376195001A:03376_01A_1950-0033/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014nm:g03376195001A:03376_01A_1950-0033","type":"ImageService3","width":1401,"height":2038},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1272.5,272.5 1123.6,273.0 1124.2,344.8 1271.0,345.8 1299.0,1775.9 20.5,1779.2 -0.0,0.0 1266.0,22.9 1272.5,272.5\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014nm:g03376195001A:03376_01A_1950-0033/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[754.0,1255.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-90.0638699,29.963849]}},{"type":"Feature","properties":{"resourceCoords":[1291.0,1255.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-90.0629677,29.9632233]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014nm:g03376195001A:03376_01A_1950-0034/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"New Orleans, Louisiana | 1950 | sanborn03376_025 p34","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T17:11:25Z","modified":"2026-09-21T17:11:25Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014nm:g03376195001A:03376_01A_1950-0034/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014nm:g03376195001A:03376_01A_1950-0034","type":"ImageService3","width":1414,"height":2038},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"166.6,1773.7 148.8,326.8 -0.0,325.7 -0.0,253.1 150.8,252.7 146.2,-0.0 1414.0,-0.0 1414.0,1772.6 166.6,1773.7\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014nm:g03376195001A:03376_01A_1950-0034/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-90.06159483070715,29.96521376860606]}},{"type":"Feature","properties":{"resourceCoords":[1414.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-90.05924985057145,29.9635887817575]}},{"type":"Feature","properties":{"resourceCoords":[1414.0,2038.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-90.06193431821197,29.96064001524505]}},{"type":"Feature","properties":{"resourceCoords":[0.0,2038.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-90.06427929834767,29.96226500209361]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014nm:g03376195001A:03376_01A_1950-0035/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"New Orleans, Louisiana | 1950 | sanborn03376_025 p35","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T17:11:25Z","modified":"2026-09-21T17:11:25Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014nm:g03376195001A:03376_01A_1950-0035/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014nm:g03376195001A:03376_01A_1950-0035","type":"ImageService3","width":1410,"height":2038},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1317.7,-0.0 1382.4,73.2 1410.0,73.5 1410.0,1755.9 303.9,1745.1 321.6,-0.0 1317.7,-0.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014nm:g03376195001A:03376_01A_1950-0035/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-90.05983976734453,29.96388755926267]}},{"type":"Feature","properties":{"resourceCoords":[1410.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-90.05750433821379,29.962302641936358]}},{"type":"Feature","properties":{"resourceCoords":[1410.0,2038.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-90.06013000417386,29.959357515349208]}},{"type":"Feature","properties":{"resourceCoords":[0.0,2038.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-90.0624654333046,29.96094243267552]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014nm:g03376195001A:03376_01A_1950-0036/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"New Orleans, Louisiana | 1950 | sanborn03376_025 p36","metadata":[{"label":"streets","value":"4"},{"label":"intersections","value":"5"}],"created":"2026-09-21T17:11:25Z","modified":"2026-09-21T17:11:25Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014nm:g03376195001A:03376_01A_1950-0036/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014nm:g03376195001A:03376_01A_1950-0036","type":"ImageService3","width":1414,"height":2038},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"497.0,534.0 668.2,134.2 790.5,35.7 681.2,0.0 1414.0,0.0 1414.0,95.7 1219.8,93.5 1209.7,1876.3 46.7,1865.2 327.2,1046.8 337.6,1164.0 547.6,642.8 0.0,446.3 0.0,399.5 497.0,534.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014nm:g03376195001A:03376_01A_1950-0036/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[345.0,1875.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-90.0733877,29.944664]}},{"type":"Feature","properties":{"resourceCoords":[1214.0,1275.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-90.0741715,29.9464902]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014nm:g03376195001A:03376_01A_1950-0037/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"New Orleans, Louisiana | 1950 | sanborn03376_025 p37","metadata":[{"label":"streets","value":"5"},{"label":"intersections","value":"6"}],"created":"2026-09-21T17:11:25Z","modified":"2026-09-21T17:11:25Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014nm:g03376195001A:03376_01A_1950-0037/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014nm:g03376195001A:03376_01A_1950-0037","type":"ImageService3","width":1412,"height":2038},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1412.0,0.0 1412.0,300.8 874.1,308.7 875.0,419.6 1218.7,413.9 1218.4,896.8 879.0,899.6 879.3,942.5 1218.4,940.2 1218.0,1615.0 19.9,1626.8 0.0,-0.0 1412.0,0.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014nm:g03376195001A:03376_01A_1950-0037/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[669.0,423.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-90.079033,29.943062]}},{"type":"Feature","properties":{"resourceCoords":[1218.0,1615.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-90.0762884,29.9427094]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014nm:g03376195001A:03376_01A_1950-0038/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"New Orleans, Louisiana | 1950 | sanborn03376_025 p38","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T17:11:25Z","modified":"2026-09-21T17:11:25Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014nm:g03376195001A:03376_01A_1950-0038/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014nm:g03376195001A:03376_01A_1950-0038","type":"ImageService3","width":1412,"height":2038},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"199.8,1673.2 200.1,1633.4 -0.0,1632.6 -0.0,325.4 1199.8,333.2 1189.9,1676.0 199.8,1673.2\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014nm:g03376195001A:03376_01A_1950-0038/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-90.07823022118691,29.941179877598145]}},{"type":"Feature","properties":{"resourceCoords":[1412.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-90.07664051047605,29.94336531712923]}},{"type":"Feature","properties":{"resourceCoords":[1412.0,2038.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-90.07302585213893,29.941363019618915]}},{"type":"Feature","properties":{"resourceCoords":[0.0,2038.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-90.07461556284979,29.93917758008783]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014nm:g03376195001A:03376_01A_1950-0039/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"New Orleans, Louisiana | 1950 | sanborn03376_025 p39","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T17:11:25Z","modified":"2026-09-21T17:11:25Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014nm:g03376195001A:03376_01A_1950-0039/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014nm:g03376195001A:03376_01A_1950-0039","type":"ImageService3","width":1409,"height":2038},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"634.2,2038.0 591.2,2038.0 593.4,1699.4 110.3,1695.2 111.0,2038.0 -0.0,2038.0 -0.0,231.6 132.6,316.9 569.1,352.8 595.9,869.1 640.7,854.2 657.5,269.9 1222.5,304.2 993.4,382.9 1322.5,401.7 1311.8,1705.7 636.9,1699.8 634.2,2038.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014nm:g03376195001A:03376_01A_1950-0039/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-90.07668843407377,29.94665408807533]}},{"type":"Feature","properties":{"resourceCoords":[1409.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-90.07418246684642,29.945260622659152]}},{"type":"Feature","properties":{"resourceCoords":[1409.0,2038.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-90.07649220050138,29.942097645524935]}},{"type":"Feature","properties":{"resourceCoords":[0.0,2038.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-90.07899816772873,29.943491110941114]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014nm:g03376195001A:03376_01A_1950-0004/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"New Orleans, Louisiana | 1950 | sanborn03376_025 p4","metadata":[{"label":"streets","value":"4"},{"label":"intersections","value":"2"}],"created":"2026-09-21T17:11:25Z","modified":"2026-09-21T17:11:25Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014nm:g03376195001A:03376_01A_1950-0004/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014nm:g03376195001A:03376_01A_1950-0004","type":"ImageService3","width":1413,"height":2038},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1413.0,0.0 1413.0,188.8 1304.5,376.4 858.1,1871.5 441.4,1834.6 522.4,0.0 1413.0,0.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014nm:g03376195001A:03376_01A_1950-0004/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[167.0,1184.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-90.0726001,29.9517601]}},{"type":"Feature","properties":{"resourceCoords":[85.0,1803.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-90.0713819,29.9513922]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014nm:g03376195001A:03376_01A_1950-0040/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"New Orleans, Louisiana | 1950 | sanborn03376_025 p40","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T17:11:25Z","modified":"2026-09-21T17:11:25Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014nm:g03376195001A:03376_01A_1950-0040/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014nm:g03376195001A:03376_01A_1950-0040","type":"ImageService3","width":1412,"height":2038},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"61.0,1690.3 57.9,351.4 1363.2,351.6 1379.5,22.1 1412.0,141.9 1412.0,1914.5 1404.5,1917.7 1412.0,2038.0 652.5,2038.0 638.3,1785.9 407.3,1786.8 404.1,1756.7 593.8,1696.4 61.0,1690.3\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014nm:g03376195001A:03376_01A_1950-0040/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-90.07697582898919,29.94297158131081]}},{"type":"Feature","properties":{"resourceCoords":[1412.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-90.07535734651174,29.94514963756763]}},{"type":"Feature","properties":{"resourceCoords":[1412.0,2038.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-90.07175483550284,29.943111137435007]}},{"type":"Feature","properties":{"resourceCoords":[0.0,2038.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-90.0733733179803,29.940933081178187]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014nm:g03376195001A:03376_01A_1950-0041/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"New Orleans, Louisiana | 1950 | sanborn03376_025 p41","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T17:11:25Z","modified":"2026-09-21T17:11:25Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014nm:g03376195001A:03376_01A_1950-0041/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014nm:g03376195001A:03376_01A_1950-0041","type":"ImageService3","width":1411,"height":2038},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"-0.0,1783.6 39.3,1784.1 47.0,277.8 105.8,466.2 135.6,463.1 135.9,234.2 576.8,211.9 868.0,95.4 837.9,382.3 978.1,794.9 1019.3,792.5 1408.6,2038.0 -0.0,2038.0 -0.0,1783.6\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014nm:g03376195001A:03376_01A_1950-0041/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-90.07306214483215,29.94267179517412]}},{"type":"Feature","properties":{"resourceCoords":[1411.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-90.07053611783722,29.941259796103417]}},{"type":"Feature","properties":{"resourceCoords":[1411.0,2038.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-90.07287316014394,29.93807589070148]}},{"type":"Feature","properties":{"resourceCoords":[0.0,2038.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-90.07539918713887,29.939487889772185]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014nm:g03376195001A:03376_01A_1950-0042/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"New Orleans, Louisiana | 1950 | sanborn03376_025 p42","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T17:11:25Z","modified":"2026-09-21T17:11:25Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014nm:g03376195001A:03376_01A_1950-0042/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014nm:g03376195001A:03376_01A_1950-0042","type":"ImageService3","width":1412,"height":2038},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"40.3,794.3 -0.0,783.1 -0.0,341.2 122.5,75.5 -0.0,75.6 -0.0,-0.0 1174.0,0.0 1172.5,207.4 1290.4,208.4 1272.9,413.6 1412.0,469.0 1412.0,933.0 1289.6,889.4 1277.5,2038.0 8.8,2038.0 40.3,794.3\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014nm:g03376195001A:03376_01A_1950-0042/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-90.07182905290203,29.941842055241413]}},{"type":"Feature","properties":{"resourceCoords":[1412.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-90.06895509616871,29.941222814779977]}},{"type":"Feature","properties":{"resourceCoords":[1412.0,2038.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-90.06997928742405,29.937602907441637]}},{"type":"Feature","properties":{"resourceCoords":[0.0,2038.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-90.07285324415737,29.938222147903073]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014nm:g03376195001A:03376_01A_1950-0043/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"New Orleans, Louisiana | 1950 | sanborn03376_025 p43","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T17:11:25Z","modified":"2026-09-21T17:11:25Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014nm:g03376195001A:03376_01A_1950-0043/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014nm:g03376195001A:03376_01A_1950-0043","type":"ImageService3","width":1415,"height":2038},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1175.9,462.8 1184.9,459.2 1321.7,29.4 1310.9,14.7 1415.0,0.0 1415.0,838.4 1179.7,842.3 1193.1,2038.0 284.8,2038.0 282.7,1919.0 491.9,1915.3 461.9,731.7 385.7,733.6 363.9,537.4 412.6,348.0 1146.1,581.3 1175.9,462.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014nm:g03376195001A:03376_01A_1950-0043/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-90.07354967828229,29.94138448515505]}},{"type":"Feature","properties":{"resourceCoords":[1415.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-90.07277258666711,29.943860125784656]}},{"type":"Feature","properties":{"resourceCoords":[1415.0,2038.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-90.06868658928461,29.942883434707557]}},{"type":"Feature","properties":{"resourceCoords":[0.0,2038.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-90.06946368089979,29.940407794077952]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014nm:g03376195001A:03376_01A_1950-0044/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"New Orleans, Louisiana | 1950 | sanborn03376_025 p44","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T17:11:25Z","modified":"2026-09-21T17:11:25Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014nm:g03376195001A:03376_01A_1950-0044/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014nm:g03376195001A:03376_01A_1950-0044","type":"ImageService3","width":1426,"height":2038},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1313.9,1532.6 472.1,1517.0 470.7,1616.8 64.5,1461.6 72.5,267.9 1312.0,274.0 1313.9,1532.6\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014nm:g03376195001A:03376_01A_1950-0044/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-90.07294055552941,29.946707899600884]}},{"type":"Feature","properties":{"resourceCoords":[1426.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-90.07007928073264,29.94607303976348]}},{"type":"Feature","properties":{"resourceCoords":[1426.0,2038.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-90.07112637987282,29.942529649982735]}},{"type":"Feature","properties":{"resourceCoords":[0.0,2038.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-90.0739876546696,29.94316450982014]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014nm:g03376195001A:03376_01A_1950-0045/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"New Orleans, Louisiana | 1950 | sanborn03376_025 p45","metadata":[{"label":"streets","value":"7"},{"label":"intersections","value":"9"}],"created":"2026-09-21T17:11:25Z","modified":"2026-09-21T17:11:25Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014nm:g03376195001A:03376_01A_1950-0045/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014nm:g03376195001A:03376_01A_1950-0045","type":"ImageService3","width":1408,"height":2038},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"130.9,144.2 1188.7,562.6 1104.9,659.5 1408.0,775.7 1408.0,958.6 926.3,1797.7 0.0,1781.4 0.0,0.0 186.8,0.0 130.9,144.2\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014nm:g03376195001A:03376_01A_1950-0045/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[91.0,1231.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-90.0679446,29.9378405]}},{"type":"Feature","properties":{"resourceCoords":[299.0,211.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-90.070157,29.937986]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014nm:g03376195001A:03376_01A_1950-0046/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"New Orleans, Louisiana | 1950 | sanborn03376_025 p46","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T17:11:25Z","modified":"2026-09-21T17:11:25Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014nm:g03376195001A:03376_01A_1950-0046/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014nm:g03376195001A:03376_01A_1950-0046","type":"ImageService3","width":1426,"height":2038},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"947.4,350.7 894.9,438.4 892.8,590.8 973.0,794.7 1126.2,797.5 1426.0,1566.6 1426.0,1725.4 620.4,1603.9 522.0,1575.2 347.9,1640.3 349.1,1504.2 210.5,1447.6 260.4,342.5 947.4,350.7\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014nm:g03376195001A:03376_01A_1950-0046/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-90.06917339030244,29.943215169520133]}},{"type":"Feature","properties":{"resourceCoords":[1426.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-90.06626447494806,29.942611608762277]}},{"type":"Feature","properties":{"resourceCoords":[1426.0,2038.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-90.06725294579428,29.938983690258333]}},{"type":"Feature","properties":{"resourceCoords":[0.0,2038.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-90.07016186114866,29.93958725101619]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014nm:g03376195001A:03376_01A_1950-0047/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"New Orleans, Louisiana | 1950 | sanborn03376_025 p47","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"6"}],"created":"2026-09-21T17:11:25Z","modified":"2026-09-21T17:11:25Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014nm:g03376195001A:03376_01A_1950-0047/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014nm:g03376195001A:03376_01A_1950-0047","type":"ImageService3","width":1408,"height":2038},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"416.1,187.6 1006.9,187.3 1003.3,1781.5 426.1,2009.2 416.1,187.6\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014nm:g03376195001A:03376_01A_1950-0047/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1004.0,1203.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-90.0687755,29.9436171]}},{"type":"Feature","properties":{"resourceCoords":[1004.0,781.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-90.0696556,29.9438175]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014nm:g03376195001A:03376_01A_1950-0048/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"New Orleans, Louisiana | 1950 | sanborn03376_025 p48","metadata":[{"label":"streets","value":"5"},{"label":"intersections","value":"4"}],"created":"2026-09-21T17:11:25Z","modified":"2026-09-21T17:11:25Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014nm:g03376195001A:03376_01A_1950-0048/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014nm:g03376195001A:03376_01A_1950-0048","type":"ImageService3","width":1426,"height":2038},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"272.1,264.5 1131.0,251.0 1128.8,1696.5 272.9,1873.7 272.1,264.5\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014nm:g03376195001A:03376_01A_1950-0048/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1131.0,861.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-90.0691894,29.9453574]}},{"type":"Feature","properties":{"resourceCoords":[1131.0,251.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-90.0704488,29.9456474]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014nm:g03376195001A:03376_01A_1950-0049/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"New Orleans, Louisiana | 1950 | sanborn03376_025 p49","metadata":[{"label":"streets","value":"3"},{"label":"intersections","value":"2"}],"created":"2026-09-21T17:11:25Z","modified":"2026-09-21T17:11:25Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014nm:g03376195001A:03376_01A_1950-0049/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014nm:g03376195001A:03376_01A_1950-0049","type":"ImageService3","width":1408,"height":2038},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1011.4,131.7 1037.2,81.2 1271.0,136.5 1272.9,1356.9 1408.0,1362.1 1408.0,2038.0 0.0,2038.0 0.0,-0.0 78.5,0.0 77.4,114.6 1011.4,131.7\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014nm:g03376195001A:03376_01A_1950-0049/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1271.0,803.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-90.0656498,29.9401468]}},{"type":"Feature","properties":{"resourceCoords":[1271.0,136.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-90.0670514,29.9399818]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014nm:g03376195001A:03376_01A_1950-0005/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"New Orleans, Louisiana | 1950 | sanborn03376_025 p5","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T17:11:25Z","modified":"2026-09-21T17:11:25Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014nm:g03376195001A:03376_01A_1950-0005/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014nm:g03376195001A:03376_01A_1950-0005","type":"ImageService3","width":1417,"height":2038},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1128.1,1856.4 498.0,1868.4 231.2,350.6 243.9,137.3 175.4,0.0 1148.2,0.0 1128.1,1856.4\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014nm:g03376195001A:03376_01A_1950-0005/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-90.07463214174682,29.954109963738993]}},{"type":"Feature","properties":{"resourceCoords":[1417.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-90.07280506174948,29.95614173838943]}},{"type":"Feature","properties":{"resourceCoords":[1417.0,2038.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-90.06945599018758,29.953848879477086]}},{"type":"Feature","properties":{"resourceCoords":[0.0,2038.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-90.07128307018492,29.95181710482665]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014nm:g03376195001A:03376_01A_1950-0050/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"New Orleans, Louisiana | 1950 | sanborn03376_025 p50","metadata":[{"label":"streets","value":"5"},{"label":"intersections","value":"2"}],"created":"2026-09-21T17:11:25Z","modified":"2026-09-21T17:11:25Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014nm:g03376195001A:03376_01A_1950-0050/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014nm:g03376195001A:03376_01A_1950-0050","type":"ImageService3","width":1426,"height":2038},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"131.0,138.5 875.3,141.8 934.3,0.0 1155.3,0.0 1297.8,57.9 1360.9,139.1 827.0,1436.4 1064.3,1459.3 1185.2,1178.3 1426.0,1205.8 1426.0,2038.0 259.5,2038.0 263.1,1382.2 126.1,1376.1 131.0,138.5\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014nm:g03376195001A:03376_01A_1950-0050/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[734.0,1127.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-90.06518,29.9413159]}},{"type":"Feature","properties":{"resourceCoords":[131.0,138.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-90.0670514,29.9399818]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014nm:g03376195001A:03376_01A_1950-0051/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"New Orleans, Louisiana | 1950 | sanborn03376_025 p51","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T17:11:25Z","modified":"2026-09-21T17:11:25Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014nm:g03376195001A:03376_01A_1950-0051/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014nm:g03376195001A:03376_01A_1950-0051","type":"ImageService3","width":1408,"height":2038},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"343.0,1683.2 299.5,1310.8 279.4,1048.3 346.8,160.7 1116.5,380.1 1399.8,1619.6 1401.1,1732.4 1117.2,1901.5 343.0,1683.2\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014nm:g03376195001A:03376_01A_1950-0051/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-90.06819425067752,29.945235620815442]}},{"type":"Feature","properties":{"resourceCoords":[1408.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-90.0652629086913,29.945286190806787]}},{"type":"Feature","properties":{"resourceCoords":[1408.0,2038.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-90.06517902788892,29.94158365010476]}},{"type":"Feature","properties":{"resourceCoords":[0.0,2038.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-90.06811036987514,29.941533080113416]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014nm:g03376195001A:03376_01A_1950-0052/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"New Orleans, Louisiana | 1950 | sanborn03376_025 p52","metadata":[{"label":"streets","value":"7"},{"label":"intersections","value":"11"}],"created":"2026-09-21T17:11:25Z","modified":"2026-09-21T17:11:25Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014nm:g03376195001A:03376_01A_1950-0052/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014nm:g03376195001A:03376_01A_1950-0052","type":"ImageService3","width":1426,"height":2038},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"173.2,1619.9 172.5,1376.3 172.2,1271.4 177.4,145.6 1426.0,506.3 1426.0,2038.0 1352.7,2038.0 173.2,1619.9\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014nm:g03376195001A:03376_01A_1950-0052/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[446.0,1348.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-90.0652134,29.9423435]}},{"type":"Feature","properties":{"resourceCoords":[446.0,224.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-90.0652692,29.9444506]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014nm:g03376195001A:03376_01A_1950-0053__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"New Orleans, Louisiana | 1950 | sanborn03376_025 p53 [1]","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"2"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"2960.8"},{"label":"split_canvas_h","value":"8152.0"}],"created":"2026-09-21T17:11:25Z","modified":"2026-09-21T17:11:25Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014nm:g03376195001A:03376_01A_1950-0053__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014nm:g03376195001A:03376_01A_1950-0053","type":"ImageService3","width":1408,"height":2038},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"111.0,208.0 666.0,161.1 740.2,-0.0 -0.0,0.0 -0.0,184.2 77.5,176.9 111.0,208.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014nm:g03376195001A:03376_01A_1950-0053__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[351.1,488.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-90.0577268,29.9607875]}},{"type":"Feature","properties":{"resourceCoords":[396.1,280.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-90.0569335,29.9612557]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014nm:g03376195001A:03376_01A_1950-0053__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"New Orleans, Louisiana | 1950 | sanborn03376_025 p53 [2]","metadata":[{"label":"streets","value":"4"},{"label":"intersections","value":"1"},{"label":"split_canvas_x","value":"2115.6"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"3516.4"},{"label":"split_canvas_h","value":"8152.0"}],"created":"2026-09-21T17:11:25Z","modified":"2026-09-21T17:11:25Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014nm:g03376195001A:03376_01A_1950-0053__2/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014nm:g03376195001A:03376_01A_1950-0053","type":"ImageService3","width":1408,"height":2038},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"995.0,2018.0 981.5,2038.0 1090.8,2038.0 1408.0,2038.0 1408.0,559.4 920.4,1202.1 1119.0,1348.7 841.9,1730.4 822.0,1592.0 786.4,1547.4 743.6,1541.3 752.1,1854.0 995.0,2018.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014nm:g03376195001A:03376_01A_1950-0053__2/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[528.9,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-90.06482475013294,29.95688046867251]}},{"type":"Feature","properties":{"resourceCoords":[1408.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-90.06110676110498,29.956801376325604]}},{"type":"Feature","properties":{"resourceCoords":[1408.0,2038.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-90.06131822535268,29.949342925517506]}},{"type":"Feature","properties":{"resourceCoords":[528.9,2038.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-90.06503621438064,29.94942201786441]}},{"type":"Feature","properties":{"resourceCoords":[798.6,898.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-90.0637785,29.9535709]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014nm:g03376195001A:03376_01A_1950-0006/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"New Orleans, Louisiana | 1950 | sanborn03376_025 p6","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T17:11:25Z","modified":"2026-09-21T17:11:25Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014nm:g03376195001A:03376_01A_1950-0006/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014nm:g03376195001A:03376_01A_1950-0006","type":"ImageService3","width":1409,"height":2038},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1409.0,524.6 1234.7,522.5 1224.6,1603.2 125.4,1595.6 130.4,1083.1 -0.0,1081.8 0.0,0.0 1409.0,0.0 1409.0,524.6\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014nm:g03376195001A:03376_01A_1950-0006/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-90.07365111759269,29.956087360268107]}},{"type":"Feature","properties":{"resourceCoords":[1409.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-90.07183575223742,29.958173044764617]}},{"type":"Feature","properties":{"resourceCoords":[1409.0,2038.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-90.06837822932607,29.95588199795583]}},{"type":"Feature","properties":{"resourceCoords":[0.0,2038.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-90.07019359468134,29.95379631345932]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014nm:g03376195001A:03376_01A_1950-0007/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"New Orleans, Louisiana | 1950 | sanborn03376_025 p7","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T17:11:25Z","modified":"2026-09-21T17:11:25Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014nm:g03376195001A:03376_01A_1950-0007/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014nm:g03376195001A:03376_01A_1950-0007","type":"ImageService3","width":1417,"height":2038},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"363.6,497.9 355.6,0.0 1239.4,0.0 1251.3,1587.7 195.2,1588.2 187.8,498.5 363.6,497.9\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014nm:g03376195001A:03376_01A_1950-0007/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-90.0722476176434,29.957622886299735]}},{"type":"Feature","properties":{"resourceCoords":[1417.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-90.07039864681367,29.959677751614525]}},{"type":"Feature","properties":{"resourceCoords":[1417.0,2038.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-90.06701139600247,29.957357501918363]}},{"type":"Feature","properties":{"resourceCoords":[0.0,2038.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-90.0688603668322,29.955302636603573]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014nm:g03376195001A:03376_01A_1950-0008/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"New Orleans, Louisiana | 1950 | sanborn03376_025 p8","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"9"}],"created":"2026-09-21T17:11:25Z","modified":"2026-09-21T17:11:25Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014nm:g03376195001A:03376_01A_1950-0008/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014nm:g03376195001A:03376_01A_1950-0008","type":"ImageService3","width":1401,"height":2038},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"146.5,0.0 1401.0,0.0 1401.0,284.5 1088.2,284.5 1088.2,1598.0 147.0,1598.0 146.5,0.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014nm:g03376195001A:03376_01A_1950-0008/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[147.0,1061.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-90.0688687,29.9582323]}},{"type":"Feature","properties":{"resourceCoords":[147.0,1598.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-90.0679761,29.9576299]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014nm:g03376195001A:03376_01A_1950-0009/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"New Orleans, Louisiana | 1950 | sanborn03376_025 p9","metadata":[{"label":"streets","value":"7"},{"label":"intersections","value":"10"}],"created":"2026-09-21T17:11:25Z","modified":"2026-09-21T17:11:25Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014nm:g03376195001A:03376_01A_1950-0009/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014nm:g03376195001A:03376_01A_1950-0009","type":"ImageService3","width":1417,"height":2038},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"340.6,109.5 1133.0,115.0 1130.7,341.9 1417.0,347.7 1417.0,1560.8 1348.5,1559.7 1347.0,1689.5 327.0,1683.4 340.6,109.5\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014nm:g03376195001A:03376_01A_1950-0009/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[325.0,1913.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-90.0691894,29.9453574]}},{"type":"Feature","properties":{"resourceCoords":[1133.0,115.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-90.0725031,29.9476356]}}]}}]}