{"id":"https://data.mapsnap.org/runs/v1.3/iiif/loc/sanborn06976_006.main.iiif.json","type":"AnnotationPage","@context":["http://www.w3.org/ns/anno.jsonld"],"label":"Alva, Oklahoma | 1909 | 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":"16"},{"label":"placed","value":"14"},{"label":"unplaced","value":"2"},{"label":"fit sources","value":"georef-snap 10, georef 4"},{"label":"key map","value":"georeferenced"},{"label":"split sheets","value":"2 sheet(s) cut into 4 panels"},{"label":"unplaced pages","value":"p1 (tier 3, 36.80995,-98.66395 +/-505m); p5__2 (tier 1, 36.80592,-98.66131 +/-128m)"}],"items":[{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd402m:g4024m:g4024am:g4024am_g069761909:06976_1909-0010/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Alva, Oklahoma | 1909 | sanborn06976_006 p10","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-23T06:19:37Z","modified":"2026-09-23T06:19:37Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd402m:g4024m:g4024am:g4024am_g069761909:06976_1909-0010/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd402m:g4024m:g4024am:g4024am_g069761909:06976_1909-0010/info.json","type":"ImageService2","height":7652,"width":6452},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"2297.5,7652.0 2294.9,7487.5 568.1,7511.0 513.6,54.6 6452.0,0.0 6452.0,7652.0 2297.5,7652.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd402m:g4024m:g4024am:g4024am_g069761909:06976_1909-0010/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-98.66057947660208,36.80490595202191]}},{"type":"Feature","properties":{"resourceCoords":[6452.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-98.65682493728895,36.80485761092468]}},{"type":"Feature","properties":{"resourceCoords":[6452.0,7652.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-98.6568960380299,36.80126706704579]}},{"type":"Feature","properties":{"resourceCoords":[0.0,7652.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-98.66065057734303,36.801315408143026]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd402m:g4024m:g4024am:g4024am_g069761909:06976_1909-0011/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Alva, Oklahoma | 1909 | sanborn06976_006 p11","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-23T06:19:37Z","modified":"2026-09-23T06:19:37Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd402m:g4024m:g4024am:g4024am_g069761909:06976_1909-0011/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd402m:g4024m:g4024am:g4024am_g069761909:06976_1909-0011/info.json","type":"ImageService2","height":7652,"width":6452},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"6452.0,7652.0 324.9,7652.0 338.9,714.1 6011.4,718.0 5994.4,7479.1 6452.0,7483.0 6452.0,7652.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd402m:g4024m:g4024am:g4024am_g069761909:06976_1909-0011/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-98.66745380729465,36.80156440265336]}},{"type":"Feature","properties":{"resourceCoords":[6452.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-98.667469267951,36.79853874145963]}},{"type":"Feature","properties":{"resourceCoords":[6452.0,7652.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-98.67191927499549,36.798553527392464]}},{"type":"Feature","properties":{"resourceCoords":[0.0,7652.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-98.67190381433913,36.801579188586196]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd402m:g4024m:g4024am:g4024am_g069761909:06976_1909-0012/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Alva, Oklahoma | 1909 | sanborn06976_006 p12","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-23T06:19:37Z","modified":"2026-09-23T06:19:37Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd402m:g4024m:g4024am:g4024am_g069761909:06976_1909-0012/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd402m:g4024m:g4024am:g4024am_g069761909:06976_1909-0012/info.json","type":"ImageService2","height":7652,"width":6452},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"6010.5,212.3 6003.4,7652.0 272.9,7652.0 272.7,208.6 6010.5,212.3\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd402m:g4024m:g4024am:g4024am_g069761909:06976_1909-0012/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-98.6634641916069,36.801516508243544]}},{"type":"Feature","properties":{"resourceCoords":[6452.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-98.66348200299977,36.79852146425611]}},{"type":"Feature","properties":{"resourceCoords":[6452.0,7652.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-98.66788697784926,36.798538498343085]}},{"type":"Feature","properties":{"resourceCoords":[0.0,7652.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-98.6678691664564,36.80153354233052]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd402m:g4024m:g4024am:g4024am_g069761909:06976_1909-0013/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Alva, Oklahoma | 1909 | sanborn06976_006 p13","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-23T06:19:37Z","modified":"2026-09-23T06:19:37Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd402m:g4024m:g4024am:g4024am_g069761909:06976_1909-0013/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd402m:g4024m:g4024am:g4024am_g069761909:06976_1909-0013/info.json","type":"ImageService2","height":7652,"width":6452},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"6452.0,7216.5 6036.4,7214.7 6037.3,7460.7 291.3,7430.5 322.1,-0.0 6452.0,-0.0 6452.0,7216.5\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd402m:g4024m:g4024am:g4024am_g069761909:06976_1909-0013/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-98.65931357928191,36.801524707714805]}},{"type":"Feature","properties":{"resourceCoords":[6452.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-98.6593143447561,36.79853393578991]}},{"type":"Feature","properties":{"resourceCoords":[6452.0,7652.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-98.66371303702095,36.79853466785799]}},{"type":"Feature","properties":{"resourceCoords":[0.0,7652.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-98.66371227154677,36.801525439782885]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd402m:g4024m:g4024am:g4024am_g069761909:06976_1909-0014__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 | 1909 | sanborn06976_006 p14 [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":"2948.0"},{"label":"split_canvas_h","value":"7652.0"}],"created":"2026-09-23T06:19:37Z","modified":"2026-09-23T06:19:37Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd402m:g4024m:g4024am:g4024am_g069761909:06976_1909-0014__1/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd402m:g4024m:g4024am:g4024am_g069761909:06976_1909-0014/info.json","type":"ImageService2","height":7652,"width":6452},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"314.0,-0.0 307.7,7652.0 2648.4,7652.0 2645.8,7031.7 2946.8,7046.2 2933.2,0.0 314.0,-0.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd402m:g4024m:g4024am:g4024am_g069761909:06976_1909-0014__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[316.0,5912.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-98.6668877,36.7987392]}},{"type":"Feature","properties":{"resourceCoords":[316.0,244.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-98.663603,36.7987269]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd402m:g4024m:g4024am:g4024am_g069761909:06976_1909-0014__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 | 1909 | sanborn06976_006 p14 [2]","metadata":[{"label":"streets","value":"4"},{"label":"intersections","value":"3"},{"label":"split_canvas_x","value":"2933.2"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"3518.8"},{"label":"split_canvas_h","value":"7652.0"}],"created":"2026-09-23T06:19:37Z","modified":"2026-09-23T06:19:37Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd402m:g4024m:g4024am:g4024am_g069761909:06976_1909-0014__2/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd402m:g4024m:g4024am:g4024am_g069761909:06976_1909-0014/info.json","type":"ImageService2","height":7652,"width":6452},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"5513.1,595.0 3217.0,599.6 3217.1,7240.0 3670.8,7242.7 3671.2,7409.1 2947.5,7411.0 2948.0,7652.0 6452.0,7652.0 6452.0,-0.0 5509.4,-0.0 5513.1,595.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd402m:g4024m:g4024am:g4024am_g069761909:06976_1909-0014__2/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[3217.1,1656.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-98.6685199,36.7987501]}},{"type":"Feature","properties":{"resourceCoords":[3217.1,7240.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-98.6718176,36.7987678]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd402m:g4024m:g4024am:g4024am_g069761909:06976_1909-0002/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Alva, Oklahoma | 1909 | sanborn06976_006 p2","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-23T06:19:37Z","modified":"2026-09-23T06:19:37Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd402m:g4024m:g4024am:g4024am_g069761909:06976_1909-0002/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd402m:g4024m:g4024am:g4024am_g069761909:06976_1909-0002/info.json","type":"ImageService2","height":7652,"width":6452},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"582.6,7499.7 -0.0,7502.3 0.0,-0.0 6452.0,0.0 6452.0,7510.8 582.7,7454.9 582.6,7499.7\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd402m:g4024m:g4024am:g4024am_g069761909:06976_1909-0002/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-98.67208383417635,36.80843610888942]}},{"type":"Feature","properties":{"resourceCoords":[6452.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-98.66834550208173,36.80842840856314]}},{"type":"Feature","properties":{"resourceCoords":[6452.0,7652.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-98.6683568283478,36.804853528687154]}},{"type":"Feature","properties":{"resourceCoords":[0.0,7652.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-98.67209516044241,36.80486122901343]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd402m:g4024m:g4024am:g4024am_g069761909:06976_1909-0003/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Alva, Oklahoma | 1909 | sanborn06976_006 p3","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-23T06:19:37Z","modified":"2026-09-23T06:19:37Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd402m:g4024m:g4024am:g4024am_g069761909:06976_1909-0003/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd402m:g4024m:g4024am:g4024am_g069761909:06976_1909-0003/info.json","type":"ImageService2","height":7652,"width":6452},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"575.6,7472.0 551.6,0.0 6452.0,0.0 6452.0,2486.7 6055.6,2486.1 6047.8,7499.0 575.6,7472.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd402m:g4024m:g4024am:g4024am_g069761909:06976_1909-0003/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-98.66866437949426,36.808403109056236]}},{"type":"Feature","properties":{"resourceCoords":[6452.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-98.66493540002224,36.80838577138097]}},{"type":"Feature","properties":{"resourceCoords":[6452.0,7652.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-98.66496090168653,36.804819835432625]}},{"type":"Feature","properties":{"resourceCoords":[0.0,7652.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-98.66868988115854,36.80483717310789]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd402m:g4024m:g4024am:g4024am_g069761909:06976_1909-0004/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Alva, Oklahoma | 1909 | sanborn06976_006 p4","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-23T06:19:37Z","modified":"2026-09-23T06:19:37Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd402m:g4024m:g4024am:g4024am_g069761909:06976_1909-0004/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd402m:g4024m:g4024am:g4024am_g069761909:06976_1909-0004/info.json","type":"ImageService2","height":7652,"width":6452},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"302.8,7484.8 333.7,2472.0 5699.9,2496.6 5668.1,7478.9 302.8,7484.8\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd402m:g4024m:g4024am:g4024am_g069761909:06976_1909-0004/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-98.66536402567692,36.808380527811124]}},{"type":"Feature","properties":{"resourceCoords":[6452.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-98.66163490999577,36.808377063935595]}},{"type":"Feature","properties":{"resourceCoords":[6452.0,7652.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-98.66164000494385,36.80481099630023]}},{"type":"Feature","properties":{"resourceCoords":[0.0,7652.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-98.665369120625,36.80481446017576]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd402m:g4024m:g4024am:g4024am_g069761909:06976_1909-0005__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 | 1909 | sanborn06976_006 p5 [1]","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"9"},{"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":"2026-09-23T06:19:37Z","modified":"2026-09-23T06:19:37Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd402m:g4024m:g4024am:g4024am_g069761909:06976_1909-0005__1/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd402m:g4024m:g4024am:g4024am_g069761909:06976_1909-0005/info.json","type":"ImageService2","height":7652,"width":6452},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"6452.0,7379.0 6452.0,2047.6 3613.2,2020.4 1958.8,1180.8 1960.4,0.0 0.0,0.0 -0.0,7387.6 6452.0,7379.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd402m:g4024m:g4024am:g4024am_g069761909:06976_1909-0005__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[5836.0,2496.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-98.658614,36.807184]}},{"type":"Feature","properties":{"resourceCoords":[5836.0,7368.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-98.6586356,36.8048729]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd402m:g4024m:g4024am:g4024am_g069761909:06976_1909-0006/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Alva, Oklahoma | 1909 | sanborn06976_006 p6","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-23T06:19:37Z","modified":"2026-09-23T06:19:37Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd402m:g4024m:g4024am:g4024am_g069761909:06976_1909-0006/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd402m:g4024m:g4024am:g4024am_g069761909:06976_1909-0006/info.json","type":"ImageService2","height":7652,"width":6452},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"6256.3,7532.9 -0.0,7652.0 -0.0,-0.0 6237.6,81.0 6256.3,7532.9\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd402m:g4024m:g4024am:g4024am_g069761909:06976_1909-0006/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-98.67375440387664,36.80498623988686]}},{"type":"Feature","properties":{"resourceCoords":[6452.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-98.66999149230776,36.80496229748858]}},{"type":"Feature","properties":{"resourceCoords":[6452.0,7652.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-98.67002670716244,36.80136375223876]}},{"type":"Feature","properties":{"resourceCoords":[0.0,7652.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-98.67378961873132,36.801387694637036]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd402m:g4024m:g4024am:g4024am_g069761909:06976_1909-0007/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Alva, Oklahoma | 1909 | sanborn06976_006 p7","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"9"}],"created":"2026-09-23T06:19:37Z","modified":"2026-09-23T06:19:37Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd402m:g4024m:g4024am:g4024am_g069761909:06976_1909-0007/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd402m:g4024m:g4024am:g4024am_g069761909:06976_1909-0007/info.json","type":"ImageService2","height":7652,"width":6452},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"432.1,7540.2 389.5,44.4 6076.8,28.4 6030.2,7518.3 432.1,7540.2\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd402m:g4024m:g4024am:g4024am_g069761909:06976_1909-0007/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[404.0,5068.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-98.6701408,36.8025764]}},{"type":"Feature","properties":{"resourceCoords":[6080.0,2528.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-98.6668104,36.8037346]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd402m:g4024m:g4024am:g4024am_g069761909:06976_1909-0008/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Alva, Oklahoma | 1909 | sanborn06976_006 p8","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-23T06:19:37Z","modified":"2026-09-23T06:19:37Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd402m:g4024m:g4024am:g4024am_g069761909:06976_1909-0008/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd402m:g4024m:g4024am:g4024am_g069761909:06976_1909-0008/info.json","type":"ImageService2","height":7652,"width":6452},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"6015.1,7461.4 391.7,7506.9 428.4,76.2 5903.8,34.5 6015.1,7461.4\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd402m:g4024m:g4024am:g4024am_g069761909:06976_1909-0008/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-98.66704599746822,36.804941630272076]}},{"type":"Feature","properties":{"resourceCoords":[6452.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-98.66327550184914,36.80490384890039]}},{"type":"Feature","properties":{"resourceCoords":[6452.0,7652.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-98.66333107121268,36.801298046326195]}},{"type":"Feature","properties":{"resourceCoords":[0.0,7652.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-98.66710156683176,36.80133582769788]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd402m:g4024m:g4024am:g4024am_g069761909:06976_1909-0009/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Alva, Oklahoma | 1909 | sanborn06976_006 p9","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-23T06:19:37Z","modified":"2026-09-23T06:19:37Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd402m:g4024m:g4024am:g4024am_g069761909:06976_1909-0009/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd402m:g4024m:g4024am:g4024am_g069761909:06976_1909-0009/info.json","type":"ImageService2","height":7652,"width":6452},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"438.1,7542.9 406.3,113.8 6079.6,134.4 6028.0,7561.0 438.1,7542.9\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd402m:g4024m:g4024am:g4024am_g069761909:06976_1909-0009/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-98.66383342469938,36.80494475087924]}},{"type":"Feature","properties":{"resourceCoords":[6452.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-98.66006333163718,36.80493951431681]}},{"type":"Feature","properties":{"resourceCoords":[6452.0,7652.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-98.66007103364875,36.80133409820772]}},{"type":"Feature","properties":{"resourceCoords":[0.0,7652.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-98.66384112671095,36.80133933477015]}}]}}]}