{"id":"https://data.mapsnap.org/runs/v1.3/iiif/chronoscope/sanborn08263_006.main.iiif.json","type":"AnnotationPage","@context":["http://www.w3.org/ns/anno.jsonld"],"label":"Sioux Falls, South-Dakota | 1902 | mapsnap generated fit (2026-09-23)","creator":{"type":"Software","name":"mapsnap","homepage":"https://mapsnap.org"},"rights":"https://opendatacommons.org/licenses/odbl/1-0/","metadata":[{"label":"generated","value":"2026-09-23"},{"label":"run","value":"corpus-v1"},{"label":"pages","value":"48"},{"label":"placed","value":"24"},{"label":"unplaced","value":"24"},{"label":"fit sources","value":"georef 12, georef-snap 10, snap:0 1, georef-street 1"},{"label":"key map","value":"georeferenced"},{"label":"split sheets","value":"6 sheet(s) cut into 30 panels"},{"label":"unplaced pages","value":"p1 (tier 3, 43.55764,-96.72421 +/-572m); p20__2 (tier 1, 43.54094,-96.71753 +/-100m); p20__4 (tier 1, 43.54090,-96.71774 +/-100m); p20__5 (tier 1, 43.54158,-96.71788 +/-100m); p21__1 (tier 3, 43.55778,-96.72496 +/-771m); p21__2 (tier 1, 43.55841,-96.72888 +/-120m); p21__3 (tier 1, 43.55821,-96.72934 +/-141m); p21__4 (tier 3, 43.55778,-96.72496 +/-771m); p21__5 (tier 1, 43.55428,-96.73225 +/-100m); p21__8 (tier 1, 43.55532,-96.73228 +/-100m); p22__2 (tier 1, 43.56546,-96.72577 +/-100m); p22__3 (tier 1, 43.56580,-96.72577 +/-100m); p22__4 (tier 1, 43.56570,-96.72558 +/-100m); p23__2 (tier 1, 43.53575,-96.73050 +/-152m); p23__3 (tier 1, 43.53778,-96.73690 +/-100m); p23__4 (tier 1, 43.53558,-96.73031 +/-134m); p23__5 (tier 1, 43.53660,-96.72862 +/-100m); p23__6 (tier 1, 43.53761,-96.73117 +/-100m); p23__7 (tier 3, 43.53680,-96.73176 +/-572m); p24__1 (tier 4, 43.54881,-96.72840 +/-1865m); p24__2 (tier 4, 43.54881,-96.72840 +/-1865m); p24__3 (tier 4, 43.54881,-96.72840 +/-1865m); p24__4 (tier 4, 43.54881,-96.72840 +/-1865m); p5__2 (tier 1, 43.54972,-96.72433 +/-100m)"}],"items":[{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd418m:g4184m:g4184sm:g082631902:08263_1902-0010/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Sioux Falls, South-Dakota | 1902 | sanborn08263_006 p10","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-23T05:57:09Z","modified":"2026-09-23T05:57:09Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd418m:g4184m:g4184sm:g082631902:08263_1902-0010/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd418m:g4184m:g4184sm:g082631902:08263_1902-0010","type":"ImageService3","width":1628,"height":1927},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"146.8,76.9 1528.8,72.2 1530.6,1805.3 158.7,1805.8 146.8,76.9\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd418m:g4184m:g4184sm:g082631902:08263_1902-0010/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-96.7266115286058,43.54758588074222]}},{"type":"Feature","properties":{"resourceCoords":[1628.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-96.72661522067158,43.54450153620595]}},{"type":"Feature","properties":{"resourceCoords":[1628.0,1927.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-96.73161678297622,43.54450472613673]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1927.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-96.73161309091044,43.547589070673]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd418m:g4184m:g4184sm:g082631902:08263_1902-0011/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Sioux Falls, South-Dakota | 1902 | sanborn08263_006 p11","metadata":[{"label":"streets","value":"7"},{"label":"intersections","value":"9"}],"created":"2026-09-23T05:57:09Z","modified":"2026-09-23T05:57:09Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd418m:g4184m:g4184sm:g082631902:08263_1902-0011/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd418m:g4184m:g4184sm:g082631902:08263_1902-0011","type":"ImageService3","width":1628,"height":1927},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"59.8,366.4 243.2,366.7 243.8,-0.0 1628.0,-0.0 1628.0,71.8 1439.5,156.0 1511.1,565.9 1507.5,1835.6 55.6,1839.3 59.8,366.4\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd418m:g4184m:g4184sm:g082631902:08263_1902-0011/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[810.0,675.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-96.7238051,43.5459918]}},{"type":"Feature","properties":{"resourceCoords":[810.0,1835.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-96.7267987,43.5459944]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd418m:g4184m:g4184sm:g082631902:08263_1902-0012/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Sioux Falls, South-Dakota | 1902 | sanborn08263_006 p12","metadata":[{"label":"streets","value":"7"},{"label":"intersections","value":"10"}],"created":"2026-09-23T05:57:09Z","modified":"2026-09-23T05:57:09Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd418m:g4184m:g4184sm:g082631902:08263_1902-0012/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd418m:g4184m:g4184sm:g082631902:08263_1902-0012","type":"ImageService3","width":1628,"height":1927},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1628.0,1820.8 70.7,1829.4 72.9,567.1 -0.0,152.6 188.6,75.8 188.5,4.4 1628.0,-0.0 1628.0,1820.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd418m:g4184m:g4184sm:g082631902:08263_1902-0012/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[724.0,1255.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-96.7253152,43.543458]}},{"type":"Feature","properties":{"resourceCoords":[724.0,676.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-96.7238122,43.5434555]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd418m:g4184m:g4184sm:g082631902:08263_1902-0013/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Sioux Falls, South-Dakota | 1902 | sanborn08263_006 p13","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-23T05:57:09Z","modified":"2026-09-23T05:57:09Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd418m:g4184m:g4184sm:g082631902:08263_1902-0013/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd418m:g4184m:g4184sm:g082631902:08263_1902-0013","type":"ImageService3","width":1628,"height":1927},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1628.0,1850.1 74.5,1848.0 75.9,109.2 1627.5,105.7 1628.0,1850.1\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd418m:g4184m:g4184sm:g082631902:08263_1902-0013/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-96.72652013591009,43.54483316741293]}},{"type":"Feature","properties":{"resourceCoords":[1628.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-96.72651605124521,43.5417587919849]}},{"type":"Feature","properties":{"resourceCoords":[1628.0,1927.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-96.73150122143849,43.541755262689826]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1927.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-96.73150530610337,43.54482963811786]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd418m:g4184m:g4184sm:g082631902:08263_1902-0014/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Sioux Falls, South-Dakota | 1902 | sanborn08263_006 p14","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"9"}],"created":"2026-09-23T05:57:09Z","modified":"2026-09-23T05:57:09Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd418m:g4184m:g4184sm:g082631902:08263_1902-0014/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd418m:g4184m:g4184sm:g082631902:08263_1902-0014","type":"ImageService3","width":1628,"height":1927},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"-0.0,1927.0 -0.0,35.6 1583.0,38.6 1582.1,954.5 1628.0,954.5 1628.0,1927.0 -0.0,1927.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd418m:g4184m:g4184sm:g082631902:08263_1902-0014/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[469.0,1116.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-96.734152,43.5414541]}},{"type":"Feature","properties":{"resourceCoords":[469.0,574.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-96.734153,43.5424601]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd418m:g4184m:g4184sm:g082631902:08263_1902-0015/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Sioux Falls, South-Dakota | 1902 | sanborn08263_006 p15","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-23T05:57:09Z","modified":"2026-09-23T05:57:09Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd418m:g4184m:g4184sm:g082631902:08263_1902-0015/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd418m:g4184m:g4184sm:g082631902:08263_1902-0015","type":"ImageService3","width":1628,"height":1927},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"860.0,1927.0 859.8,1800.3 161.0,1799.9 155.1,104.9 1512.8,107.6 1508.5,1687.3 1628.0,1687.4 1628.0,1927.0 860.0,1927.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd418m:g4184m:g4184sm:g082631902:08263_1902-0015/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-96.73103138046234,43.54628904888449]}},{"type":"Feature","properties":{"resourceCoords":[1628.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-96.73102499940738,43.54323984984061]}},{"type":"Feature","properties":{"resourceCoords":[1628.0,1927.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-96.73596946431148,43.54323433651567]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1927.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-96.73597584536644,43.546283535559546]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd418m:g4184m:g4184sm:g082631902:08263_1902-0016/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Sioux Falls, South-Dakota | 1902 | sanborn08263_006 p16","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-23T05:57:09Z","modified":"2026-09-23T05:57:09Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd418m:g4184m:g4184sm:g082631902:08263_1902-0016/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd418m:g4184m:g4184sm:g082631902:08263_1902-0016","type":"ImageService3","width":1628,"height":1927},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"136.8,94.2 1535.0,103.8 1530.8,1802.5 724.6,1799.2 724.2,1927.0 -0.0,1927.0 -0.0,1791.8 135.5,1791.6 136.8,94.2\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd418m:g4184m:g4184sm:g082631902:08263_1902-0016/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-96.73106363049101,43.54886841145555]}},{"type":"Feature","properties":{"resourceCoords":[1628.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-96.73103234229038,43.54582607290696]}},{"type":"Feature","properties":{"resourceCoords":[1628.0,1927.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-96.7359658931913,43.54579904059798]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1927.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-96.73599718139194,43.548841379146566]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd418m:g4184m:g4184sm:g082631902:08263_1902-0017/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Sioux Falls, South-Dakota | 1902 | sanborn08263_006 p17","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-23T05:57:09Z","modified":"2026-09-23T05:57:09Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd418m:g4184m:g4184sm:g082631902:08263_1902-0017/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd418m:g4184m:g4184sm:g082631902:08263_1902-0017","type":"ImageService3","width":1628,"height":1927},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1529.1,1813.8 1393.6,1816.3 1393.9,1927.0 223.3,1927.0 223.6,1837.8 126.9,1839.5 132.8,113.0 1525.1,116.1 1529.1,1813.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd418m:g4184m:g4184sm:g082631902:08263_1902-0017/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-96.73102212753642,43.55146215683758]}},{"type":"Feature","properties":{"resourceCoords":[1628.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-96.7310036483526,43.548420256735625]}},{"type":"Feature","properties":{"resourceCoords":[1628.0,1927.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-96.73593670110488,43.54840429182096]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1927.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-96.7359551802887,43.55144619192291]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd418m:g4184m:g4184sm:g082631902:08263_1902-0018/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Sioux Falls, South-Dakota | 1902 | sanborn08263_006 p18","metadata":[{"label":"streets","value":"7"},{"label":"intersections","value":"12"}],"created":"2026-09-23T05:57:09Z","modified":"2026-09-23T05:57:09Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd418m:g4184m:g4184sm:g082631902:08263_1902-0018/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd418m:g4184m:g4184sm:g082631902:08263_1902-0018","type":"ImageService3","width":1628,"height":1927},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1628.0,1927.0 -0.0,1927.0 -0.0,167.7 132.0,167.0 131.4,69.7 1532.1,70.0 1531.3,1786.0 1628.0,1766.0 1628.0,1927.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd418m:g4184m:g4184sm:g082631902:08263_1902-0018/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[831.0,1232.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-96.7343057,43.5525186]}},{"type":"Feature","properties":{"resourceCoords":[831.0,70.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-96.7313114,43.5525219]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd418m:g4184m:g4184sm:g082631902:08263_1902-0019/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Sioux Falls, South-Dakota | 1902 | sanborn08263_006 p19","metadata":[{"label":"streets","value":"7"},{"label":"intersections","value":"12"}],"created":"2026-09-23T05:57:09Z","modified":"2026-09-23T05:57:09Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd418m:g4184m:g4184sm:g082631902:08263_1902-0019/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd418m:g4184m:g4184sm:g082631902:08263_1902-0019","type":"ImageService3","width":1628,"height":1927},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1628.0,175.1 1628.0,1927.0 -0.0,1927.0 -0.0,44.0 1521.1,47.5 1521.0,174.8 1628.0,175.1\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd418m:g4184m:g4184sm:g082631902:08263_1902-0019/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[814.0,1164.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-96.7385065,43.5459732]}},{"type":"Feature","properties":{"resourceCoords":[814.0,45.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-96.7356491,43.5459824]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd418m:g4184m:g4184sm:g082631902:08263_1902-0002/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Sioux Falls, South-Dakota | 1902 | sanborn08263_006 p2","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-23T05:57:09Z","modified":"2026-09-23T05:57:09Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd418m:g4184m:g4184sm:g082631902:08263_1902-0002/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd418m:g4184m:g4184sm:g082631902:08263_1902-0002","type":"ImageService3","width":1628,"height":1927},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1380.3,1832.1 1379.8,1927.0 -0.0,1927.0 -0.0,0.0 1628.0,-0.0 1628.0,21.5 1391.0,20.1 1390.9,51.8 1628.0,45.5 1628.0,95.7 1390.6,101.8 1387.1,688.9 1517.2,690.6 1510.2,1833.0 1380.3,1832.1\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd418m:g4184m:g4184sm:g082631902:08263_1902-0002/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-96.72662658854614,43.55801583196656]}},{"type":"Feature","properties":{"resourceCoords":[1628.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-96.72657411972443,43.55494370563153]}},{"type":"Feature","properties":{"resourceCoords":[1628.0,1927.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-96.73155673009111,43.55489838060327]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1927.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-96.73160919891282,43.5579705069383]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd418m:g4184m:g4184sm:g082631902:08263_1902-0020__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Sioux Falls, South-Dakota | 1902 | sanborn08263_006 p20 [1]","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":"6512.0"},{"label":"split_canvas_h","value":"7708.0"}],"created":"2026-09-23T05:57:09Z","modified":"2026-09-23T05:57:09Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd418m:g4184m:g4184sm:g082631902:08263_1902-0020__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd418m:g4184m:g4184sm:g082631902:08263_1902-0020","type":"ImageService3","width":1628,"height":1927},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1628.0,0.0 741.8,0.0 -0.0,-0.0 0.0,1044.0 656.6,1041.9 687.3,1359.2 695.1,1359.2 694.9,1438.3 694.0,1927.0 1063.0,1927.0 1345.0,1927.0 1403.5,1927.0 1403.6,1301.7 1071.3,1302.6 1070.7,873.1 1628.0,873.0 1628.0,0.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd418m:g4184m:g4184sm:g082631902:08263_1902-0020__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[112.0,582.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-96.7179536,43.5414376]}},{"type":"Feature","properties":{"resourceCoords":[112.0,55.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-96.7179626,43.5424331]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd418m:g4184m:g4184sm:g082631902:08263_1902-0020__3/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Sioux Falls, South-Dakota | 1902 | sanborn08263_006 p20 [3]","metadata":[{"label":"streets","value":"2"},{"label":"intersections","value":"1"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"4167.6"},{"label":"split_canvas_w","value":"2749.2"},{"label":"split_canvas_h","value":"1288.0"}],"created":"2026-09-23T05:57:09Z","modified":"2026-09-23T05:57:09Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd418m:g4184m:g4184sm:g082631902:08263_1902-0020__3/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd418m:g4184m:g4184sm:g082631902:08263_1902-0020","type":"ImageService3","width":1628,"height":1927},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"-0.0,1363.9 687.3,1359.2 656.6,1041.9 0.0,1044.0 -0.0,1363.9\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd418m:g4184m:g4184sm:g082631902:08263_1902-0020__3/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,1041.9],"type":"corner"},"geometry":{"type":"Point","coordinates":[-96.72288235481602,43.541553766856154]}},{"type":"Feature","properties":{"resourceCoords":[687.3,1041.9],"type":"corner"},"geometry":{"type":"Point","coordinates":[-96.71934174168055,43.54166321095799]}},{"type":"Feature","properties":{"resourceCoords":[687.3,1363.9],"type":"corner"},"geometry":{"type":"Point","coordinates":[-96.71927071900397,43.540457160791014]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1363.9],"type":"corner"},"geometry":{"type":"Point","coordinates":[-96.72281133213944,43.540347716689176]}},{"type":"Feature","properties":{"resourceCoords":[386.2,1087.8],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-96.7208829,43.5414435]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd418m:g4184m:g4184sm:g082631902:08263_1902-0021__6/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Sioux Falls, South-Dakota | 1902 | sanborn08263_006 p21 [6]","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"split_canvas_x","value":"2180.4"},{"label":"split_canvas_y","value":"5145.2"},{"label":"split_canvas_w","value":"1683.2"},{"label":"split_canvas_h","value":"2562.8"}],"created":"2026-09-23T05:57:09Z","modified":"2026-09-23T05:57:09Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd418m:g4184m:g4184sm:g082631902:08263_1902-0021__6/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd418m:g4184m:g4184sm:g082631902:08263_1902-0021","type":"ImageService3","width":1628,"height":1927},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"965.9,1927.0 963.4,1800.2 947.2,1286.3 558.3,1293.0 557.8,1315.9 545.1,1927.0 965.9,1927.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd418m:g4184m:g4184sm:g082631902:08263_1902-0021__6/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[545.1,1286.3],"type":"corner"},"geometry":{"type":"Point","coordinates":[-96.72833001878969,43.55909772373927]}},{"type":"Feature","properties":{"resourceCoords":[965.9,1286.3],"type":"corner"},"geometry":{"type":"Point","coordinates":[-96.72833912567415,43.55829073714937]}},{"type":"Feature","properties":{"resourceCoords":[965.9,1927.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-96.73002275896762,43.5583008562172]}},{"type":"Feature","properties":{"resourceCoords":[545.1,1927.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-96.73001365208316,43.5591078428071]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd418m:g4184m:g4184sm:g082631902:08263_1902-0021__7/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Sioux Falls, South-Dakota | 1902 | sanborn08263_006 p21 [7]","metadata":[{"label":"streets","value":"3"},{"label":"intersections","value":"2"},{"label":"split_canvas_x","value":"3788.8"},{"label":"split_canvas_y","value":"5117.2"},{"label":"split_canvas_w","value":"1656.8"},{"label":"split_canvas_h","value":"2590.8"}],"created":"2026-09-23T05:57:09Z","modified":"2026-09-23T05:57:09Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd418m:g4184m:g4184sm:g082631902:08263_1902-0021__7/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd418m:g4184m:g4184sm:g082631902:08263_1902-0021","type":"ImageService3","width":1628,"height":1927},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1361.4,1927.0 1360.5,1776.5 1356.3,1279.3 947.2,1286.3 963.4,1800.2 965.9,1927.0 1361.4,1927.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd418m:g4184m:g4184sm:g082631902:08263_1902-0021__7/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1090.3,1847.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-96.7343435,43.5577411]}},{"type":"Feature","properties":{"resourceCoords":[1090.3,1319.3],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-96.7328603,43.5577406]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd418m:g4184m:g4184sm:g082631902:08263_1902-0022__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Sioux Falls, South-Dakota | 1902 | sanborn08263_006 p22 [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":"3518.0"},{"label":"split_canvas_h","value":"2663.2"}],"created":"2026-09-23T05:57:09Z","modified":"2026-09-23T05:57:09Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd418m:g4184m:g4184sm:g082631902:08263_1902-0022__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd418m:g4184m:g4184sm:g082631902:08263_1902-0022","type":"ImageService3","width":1628,"height":1927},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"-0.0,0.0 0.0,636.6 875.3,665.7 879.5,665.8 698.9,401.6 694.1,0.0 -0.0,0.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd418m:g4184m:g4184sm:g082631902:08263_1902-0022__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":[-96.72607962241871,43.56595025599291]}},{"type":"Feature","properties":{"resourceCoords":[879.5,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-96.7259048983824,43.565150732743454]}},{"type":"Feature","properties":{"resourceCoords":[879.5,665.8],"type":"corner"},"geometry":{"type":"Point","coordinates":[-96.72673509726317,43.56505413381351]}},{"type":"Feature","properties":{"resourceCoords":[0.0,665.8],"type":"corner"},"geometry":{"type":"Point","coordinates":[-96.72690982129949,43.565853657062966]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd418m:g4184m:g4184sm:g082631902:08263_1902-0023__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Sioux Falls, South-Dakota | 1902 | sanborn08263_006 p23 [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":"2363.6"},{"label":"split_canvas_h","value":"1867.6"}],"created":"2026-09-23T05:57:09Z","modified":"2026-09-23T05:57:09Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd418m:g4184m:g4184sm:g082631902:08263_1902-0023__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd418m:g4184m:g4184sm:g082631902:08263_1902-0023","type":"ImageService3","width":1628,"height":1927},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"-0.0,0.0 0.0,466.9 590.9,466.4 590.5,0.0 -0.0,0.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd418m:g4184m:g4184sm:g082631902:08263_1902-0023__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":[-96.73701325999018,43.537500945623194]}},{"type":"Feature","properties":{"resourceCoords":[590.9,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-96.73549432915426,43.537491090026414]}},{"type":"Feature","properties":{"resourceCoords":[590.9,466.9],"type":"corner"},"geometry":{"type":"Point","coordinates":[-96.73550499678151,43.536614872586725]}},{"type":"Feature","properties":{"resourceCoords":[0.0,466.9],"type":"corner"},"geometry":{"type":"Point","coordinates":[-96.73702392761743,43.536624728183504]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd418m:g4184m:g4184sm:g082631902:08263_1902-0003/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Sioux Falls, South-Dakota | 1902 | sanborn08263_006 p3","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-23T05:57:09Z","modified":"2026-09-23T05:57:09Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd418m:g4184m:g4184sm:g082631902:08263_1902-0003/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd418m:g4184m:g4184sm:g082631902:08263_1902-0003","type":"ImageService3","width":1628,"height":1927},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"822.3,1927.0 -0.0,1927.0 -0.0,1825.7 130.9,1826.0 131.1,674.8 -0.0,673.9 -0.0,82.4 239.2,74.8 238.9,24.2 -0.0,32.0 -0.0,0.0 1393.8,-0.0 1389.0,1832.0 822.2,1829.3 822.3,1927.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd418m:g4184m:g4184sm:g082631902:08263_1902-0003/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-96.72663363292546,43.555390359756025]}},{"type":"Feature","properties":{"resourceCoords":[1628.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-96.72660633131117,43.55234099902974]}},{"type":"Feature","properties":{"resourceCoords":[1628.0,1927.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-96.73155180419096,43.55231741359245]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1927.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-96.73157910580524,43.555366774318735]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd418m:g4184m:g4184sm:g082631902:08263_1902-0004/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Sioux Falls, South-Dakota | 1902 | sanborn08263_006 p4","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-23T05:57:09Z","modified":"2026-09-23T05:57:09Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd418m:g4184m:g4184sm:g082631902:08263_1902-0004/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd418m:g4184m:g4184sm:g082631902:08263_1902-0004","type":"ImageService3","width":1628,"height":1927},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"-0.0,1844.1 -0.0,64.9 130.8,99.3 1628.0,94.9 1628.0,1847.5 -0.0,1844.1\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd418m:g4184m:g4184sm:g082631902:08263_1902-0004/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-96.72659669850685,43.55277948627892]}},{"type":"Feature","properties":{"resourceCoords":[1628.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-96.72658070325312,43.549741225517536]}},{"type":"Feature","properties":{"resourceCoords":[1628.0,1927.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-96.73150796183593,43.5497274068728]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1927.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-96.73152395708966,43.55276566763418]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd418m:g4184m:g4184sm:g082631902:08263_1902-0005__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Sioux Falls, South-Dakota | 1902 | sanborn08263_006 p5 [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":"6512.0"},{"label":"split_canvas_h","value":"7708.0"}],"created":"2026-09-23T05:57:09Z","modified":"2026-09-23T05:57:09Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd418m:g4184m:g4184sm:g082631902:08263_1902-0005__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd418m:g4184m:g4184sm:g082631902:08263_1902-0005","type":"ImageService3","width":1628,"height":1927},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"128.3,1832.6 1498.8,1833.0 1515.3,412.0 1628.0,413.1 1625.0,267.8 14.5,263.8 8.7,901.0 411.9,911.1 412.4,1131.3 6.4,1150.0 0.5,1798.7 128.3,1832.6\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd418m:g4184m:g4184sm:g082631902:08263_1902-0005__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[815.0,1833.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-96.7268366,43.5512245]}},{"type":"Feature","properties":{"resourceCoords":[1494.0,1833.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-96.726823,43.549929]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd418m:g4184m:g4184sm:g082631902:08263_1902-0006/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Sioux Falls, South-Dakota | 1902 | sanborn08263_006 p6","metadata":[{"label":"streets","value":"5"},{"label":"intersections","value":"6"}],"created":"2026-09-23T05:57:09Z","modified":"2026-09-23T05:57:09Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd418m:g4184m:g4184sm:g082631902:08263_1902-0006/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd418m:g4184m:g4184sm:g082631902:08263_1902-0006","type":"ImageService3","width":1628,"height":1927},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1628.0,-0.0 1628.0,1927.0 -0.0,1927.0 0.0,-0.0 1628.0,-0.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd418m:g4184m:g4184sm:g082631902:08263_1902-0006/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1510.0,862.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-96.719928,43.549935]}},{"type":"Feature","properties":{"resourceCoords":[143.0,310.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-96.7185089,43.5525205]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd418m:g4184m:g4184sm:g082631902:08263_1902-0007/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Sioux Falls, South-Dakota | 1902 | sanborn08263_006 p7","metadata":[{"label":"streets","value":"5"},{"label":"intersections","value":"0"}],"created":"2026-09-23T05:57:09Z","modified":"2026-09-23T05:57:09Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd418m:g4184m:g4184sm:g082631902:08263_1902-0007/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd418m:g4184m:g4184sm:g082631902:08263_1902-0007","type":"ImageService3","width":1628,"height":1927},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1628.0,1927.0 1453.8,1927.0 1435.8,1911.3 1370.8,1927.0 284.9,1927.0 266.4,-0.0 1628.0,-0.0 1628.0,1927.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd418m:g4184m:g4184sm:g082631902:08263_1902-0007/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-96.7177599,43.5502449]}},{"type":"Feature","properties":{"resourceCoords":[1628.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-96.7177734,43.5470397]}},{"type":"Feature","properties":{"resourceCoords":[1628.0,1927.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-96.72300779999999,43.547051399999994]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1927.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-96.7229943,43.5502566]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd418m:g4184m:g4184sm:g082631902:08263_1902-0008/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Sioux Falls, South-Dakota | 1902 | sanborn08263_006 p8","metadata":[{"label":"streets","value":"5"},{"label":"intersections","value":"4"}],"created":"2026-09-23T05:57:09Z","modified":"2026-09-23T05:57:09Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd418m:g4184m:g4184sm:g082631902:08263_1902-0008/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd418m:g4184m:g4184sm:g082631902:08263_1902-0008","type":"ImageService3","width":1628,"height":1927},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1628.0,1809.4 -0.0,1823.2 -0.0,67.4 139.2,67.0 137.9,26.9 1522.3,25.6 1628.0,-0.0 1628.0,1809.4\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd418m:g4184m:g4184sm:g082631902:08263_1902-0008/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[841.0,62.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-96.7230775,43.5486101]}},{"type":"Feature","properties":{"resourceCoords":[841.0,1819.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-96.7268212,43.548621]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd418m:g4184m:g4184sm:g082631902:08263_1902-0009/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Sioux Falls, South-Dakota | 1902 | sanborn08263_006 p9","metadata":[{"label":"streets","value":"7"},{"label":"intersections","value":"9"}],"created":"2026-09-23T05:57:09Z","modified":"2026-09-23T05:57:09Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd418m:g4184m:g4184sm:g082631902:08263_1902-0009/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd418m:g4184m:g4184sm:g082631902:08263_1902-0009","type":"ImageService3","width":1628,"height":1927},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1515.2,1858.7 196.2,1839.7 217.8,83.6 1533.0,100.1 1515.2,1858.7\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd418m:g4184m:g4184sm:g082631902:08263_1902-0009/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1522.0,1275.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-96.7298095,43.5472931]}},{"type":"Feature","properties":{"resourceCoords":[823.0,92.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-96.7268212,43.548621]}}]}}]}