{"id":"https://data.mapsnap.org/runs/v1.3/iiif/chronoscope/sanborn06976_008.main.iiif.json","type":"AnnotationPage","@context":["http://www.w3.org/ns/anno.jsonld"],"label":"Alva, Oklahoma | 1920 | 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":"13"},{"label":"placed","value":"10"},{"label":"unplaced","value":"3"},{"label":"fit sources","value":"georef-snap 5, georef 5"},{"label":"key map","value":"georeferenced"},{"label":"split sheets","value":"2 sheet(s) cut into 5 panels"},{"label":"unplaced pages","value":"p1 (tier 1, 36.79754,-98.66636 +/-230m); p2__1 (tier 1, 36.80695,-98.66836 +/-100m); p2__3 (tier 2, 36.80616,-98.66959 +/-376m)"}],"items":[{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd402m:g4024m:g4024am:g4024am_g069761920:06976_1920-0010/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Alva, Oklahoma | 1920 | sanborn06976_008 p10","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-23T11:57:54Z","modified":"2026-09-23T11:57:54Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd402m:g4024m:g4024am:g4024am_g069761920:06976_1920-0010/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd402m:g4024m:g4024am:g4024am_g069761920:06976_1920-0010","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1613.0,-0.0 1613.0,1913.0 333.4,1913.0 332.6,1450.5 21.5,1452.4 23.6,27.1 1308.1,27.4 1333.9,18.6 1333.9,-0.0 1613.0,-0.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd402m:g4024m:g4024am:g4024am_g069761920:06976_1920-0010/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-98.66344760776634,36.802625912611255]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-98.66348945119218,36.796632188455725]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-98.67230470374803,36.796672205999805]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-98.67226286032219,36.802665930155335]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd402m:g4024m:g4024am:g4024am_g069761920:06976_1920-0002__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Alva, Oklahoma | 1920 | sanborn06976_008 p2 [2]","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"7"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"6452.0"},{"label":"split_canvas_h","value":"7652.0"}],"created":"2026-09-23T11:57:54Z","modified":"2026-09-23T11:57:54Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd402m:g4024m:g4024am:g4024am_g069761920:06976_1920-0002__2/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd402m:g4024m:g4024am:g4024am_g069761920:06976_1920-0002","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1504.9,1872.2 1511.0,1271.0 1613.0,1271.7 1613.0,0.0 920.4,0.0 918.0,231.5 757.9,230.6 755.5,539.7 0.0,547.6 -0.0,655.1 149.9,655.0 136.0,1853.0 1504.9,1872.2\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd402m:g4024m:g4024am:g4024am_g069761920:06976_1920-0002__2/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[136.0,1853.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-98.6701063,36.8060914]}},{"type":"Feature","properties":{"resourceCoords":[1511.0,1271.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-98.6668107,36.8072284]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd402m:g4024m:g4024am:g4024am_g069761920:06976_1920-0003/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Alva, Oklahoma | 1920 | sanborn06976_008 p3","metadata":[{"label":"streets","value":"5"},{"label":"intersections","value":"6"}],"created":"2026-09-23T11:57:54Z","modified":"2026-09-23T11:57:54Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd402m:g4024m:g4024am:g4024am_g069761920:06976_1920-0003/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd402m:g4024m:g4024am:g4024am_g069761920:06976_1920-0003","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1533.0,1894.5 128.1,1894.9 128.0,1272.0 233.7,1271.6 220.7,0.0 1613.0,0.0 1613.0,1272.4 1538.0,1272.0 1533.0,1894.5\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd402m:g4024m:g4024am:g4024am_g069761920:06976_1920-0003/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[128.0,1272.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-98.6668107,36.8072284]}},{"type":"Feature","properties":{"resourceCoords":[1538.0,1272.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-98.6635402,36.8072185]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd402m:g4024m:g4024am:g4024am_g069761920:06976_1920-0004/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Alva, Oklahoma | 1920 | sanborn06976_008 p4","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"9"}],"created":"2026-09-23T11:57:54Z","modified":"2026-09-23T11:57:54Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd402m:g4024m:g4024am:g4024am_g069761920:06976_1920-0004/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd402m:g4024m:g4024am:g4024am_g069761920:06976_1920-0004","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"105.7,1870.2 117.0,628.2 191.4,628.1 187.4,0.0 1476.8,13.0 1486.4,627.3 1513.5,627.3 1521.7,1863.5 105.7,1870.2\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd402m:g4024m:g4024am:g4024am_g069761920:06976_1920-0004/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[816.0,624.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-98.6619039,36.8072132]}},{"type":"Feature","properties":{"resourceCoords":[116.0,1245.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-98.6635572,36.8060624]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd402m:g4024m:g4024am:g4024am_g069761920:06976_1920-0005/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Alva, Oklahoma | 1920 | sanborn06976_008 p5","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-23T11:57:54Z","modified":"2026-09-23T11:57:54Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd402m:g4024m:g4024am:g4024am_g069761920:06976_1920-0005/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd402m:g4024m:g4024am:g4024am_g069761920:06976_1920-0005","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"119.2,30.7 1513.3,35.2 1536.2,722.0 1501.6,1877.3 112.5,1877.8 119.2,30.7\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd402m:g4024m:g4024am:g4024am_g069761920:06976_1920-0005/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-98.67038724578103,36.80615083873327]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-98.6665804726768,36.806137642651876]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-98.6665998819566,36.80249720361767]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-98.67040665506083,36.80251039969906]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd402m:g4024m:g4024am:g4024am_g069761920:06976_1920-0006/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Alva, Oklahoma | 1920 | sanborn06976_008 p6","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-23T11:57:54Z","modified":"2026-09-23T11:57:54Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd402m:g4024m:g4024am:g4024am_g069761920:06976_1920-0006/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd402m:g4024m:g4024am:g4024am_g069761920:06976_1920-0006","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1497.3,1879.2 93.1,1870.0 128.6,706.2 105.8,14.2 1497.0,13.7 1468.7,709.9 1497.3,1879.2\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd402m:g4024m:g4024am:g4024am_g069761920:06976_1920-0006/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-98.66706376994975,36.80609902317]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-98.66328524299261,36.806087335459715]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-98.66330243369337,36.802473905948055]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-98.66708096065051,36.80248559365834]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd402m:g4024m:g4024am:g4024am_g069761920:06976_1920-0007/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Alva, Oklahoma | 1920 | sanborn06976_008 p7","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-23T11:57:54Z","modified":"2026-09-23T11:57:54Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd402m:g4024m:g4024am:g4024am_g069761920:06976_1920-0007/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd402m:g4024m:g4024am:g4024am_g069761920:06976_1920-0007","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1511.1,26.8 1520.3,1868.6 1510.2,1832.5 123.1,1836.8 94.0,0.0 103.8,30.7 1511.1,26.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd402m:g4024m:g4024am:g4024am_g069761920:06976_1920-0007/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-98.66383990431275,36.80495072151653]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-98.66004047707449,36.80492571623139]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-98.66007725519584,36.801292245995455]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-98.66387668243411,36.8013172512806]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd402m:g4024m:g4024am:g4024am_g069761920:06976_1920-0008/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Alva, Oklahoma | 1920 | sanborn06976_008 p8","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-23T11:57:54Z","modified":"2026-09-23T11:57:54Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd402m:g4024m:g4024am:g4024am_g069761920:06976_1920-0008/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd402m:g4024m:g4024am:g4024am_g069761920:06976_1920-0008","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"31.7,0.0 1383.1,0.0 1383.0,35.2 1613.0,35.1 1613.0,1913.0 38.1,1913.0 31.7,0.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd402m:g4024m:g4024am:g4024am_g069761920:06976_1920-0008/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-98.66366180248421,36.80146030903323]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-98.65976210371682,36.80144440588961]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-98.65978549319503,36.7977148706604]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-98.66368519196243,36.79773077380402]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd402m:g4024m:g4024am:g4024am_g069761920:06976_1920-0009__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Alva, Oklahoma | 1920 | sanborn06976_008 p9 [1]","metadata":[{"label":"streets","value":"10"},{"label":"intersections","value":"20"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"3249.6"},{"label":"split_canvas_h","value":"7652.0"}],"created":"2026-09-23T11:57:54Z","modified":"2026-09-23T11:57:54Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd402m:g4024m:g4024am:g4024am_g069761920:06976_1920-0009__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd402m:g4024m:g4024am:g4024am_g069761920:06976_1920-0009","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"-0.0,1913.0 368.7,1913.0 367.6,1864.8 808.2,1854.0 808.0,1625.0 777.2,8.1 -0.0,35.3 -0.0,1913.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd402m:g4024m:g4024am:g4024am_g069761920:06976_1920-0009__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[107.0,1254.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-98.6734182,36.8037623]}},{"type":"Feature","properties":{"resourceCoords":[791.4,618.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-98.6701063,36.8060914]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd402m:g4024m:g4024am:g4024am_g069761920:06976_1920-0009__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Alva, Oklahoma | 1920 | sanborn06976_008 p9 [2]","metadata":[{"label":"streets","value":"9"},{"label":"intersections","value":"20"},{"label":"split_canvas_x","value":"3231.2"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"3220.8"},{"label":"split_canvas_h","value":"7652.0"}],"created":"2026-09-23T11:57:54Z","modified":"2026-09-23T11:57:54Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd402m:g4024m:g4024am:g4024am_g069761920:06976_1920-0009__2/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd402m:g4024m:g4024am:g4024am_g069761920:06976_1920-0009","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"821.4,309.4 808.2,1823.0 808.2,1871.1 922.1,1872.1 921.6,1913.0 1613.0,1913.0 1613.0,0.0 812.4,0.0 811.6,309.2 821.4,309.4\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd402m:g4024m:g4024am:g4024am_g069761920:06976_1920-0009__2/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1165.5,1252.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-98.6586453,36.8036904]}},{"type":"Feature","properties":{"resourceCoords":[1503.1,1569.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-98.657065,36.8025167]}}]}}]}