{"id":"https://data.mapsnap.org/runs/v1.3/iiif/chronoscope/sanborn08308_002.keymap.iiif.json","type":"AnnotationPage","@context":["http://www.w3.org/ns/anno.jsonld"],"label":"Elizabethton, Tennessee | 1908 | key map | mapsnap generated fit (2026-09-22)","creator":{"type":"Software","name":"mapsnap","homepage":"https://mapsnap.org"},"rights":"https://opendatacommons.org/licenses/odbl/1-0/","metadata":[{"label":"generated","value":"2026-09-22"},{"label":"run","value":"corpus-v1"}],"items":[{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964em:g3964em_g083081908:08308_1908-0001__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Elizabethton, Tennessee | 1908 | sanborn08308_002 p1 [2]","metadata":[{"label":"streets","value":"2"},{"label":"intersections","value":"20"},{"label":"split_canvas_x","value":"2215.5"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"4662.9"},{"label":"split_canvas_h","value":"4608.3"}],"created":"2026-09-22T19:31:50Z","modified":"2026-09-22T19:31:50Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964em:g3964em_g083081908:08308_1908-0001__2/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964em:g3964em_g083081908:08308_1908-0001","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"565.2,1152.1 1613,1150.9 1613,0.0 978.5,0.0 845.5,0.0 844.3,389.9 553.9,1098.8 553.9,1098.8 564.1,1152.1 565.2,1152.1\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964em:g3964em_g083081908:08308_1908-0001__2/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1067.1,758.5],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-82.2209221,36.3506684]}},{"type":"Feature","properties":{"resourceCoords":[1301.3,903.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-82.2145803,36.3480045]}}]}}]}