{"id":"https://data.mapsnap.org/runs/v2.0/iiif/chronoscope/sanborn08516_006.main.iiif.json","type":"AnnotationPage","@context":["http://www.w3.org/ns/anno.jsonld"],"label":"Elgin, Texas | 1916 | mapsnap generated fit (2026-10-19)","creator":{"type":"Software","name":"mapsnap","homepage":"https://mapsnap.org"},"rights":"https://opendatacommons.org/licenses/odbl/1-0/","metadata":[{"label":"generated","value":"2026-10-19"},{"label":"run","value":"corpus-v2"},{"label":"pages","value":"15"},{"label":"placed","value":"1"},{"label":"unplaced","value":"14"},{"label":"fit sources","value":"georef 1"},{"label":"key map","value":"none"},{"label":"split sheets","value":"3 sheet(s) cut into 14 panels"},{"label":"unplaced pages","value":"p1__1 (tier 4, 30.34517,-97.36904 +/-100m); p1__2 (tier 4, 30.34517,-97.36904 +/-100m); p1__3 (tier 4, 30.34517,-97.36904 +/-100m); p1__4 (tier 4, 30.34517,-97.36904 +/-100m); p1__5 (tier 4, 30.34517,-97.36904 +/-100m); p2 (tier 2, 30.34629,-97.37058 +/-100m); p3__1 (tier 2, 30.34762,-97.36909 +/-100m); p3__2 (tier 2, 30.34762,-97.36909 +/-100m); p3__3 (tier 2, 30.34762,-97.36909 +/-100m); p3__4 (tier 2, 30.34762,-97.36909 +/-100m); p3__5 (tier 2, 30.34762,-97.36909 +/-100m); p3__6 (tier 2, 30.34762,-97.36909 +/-100m); p3__7 (tier 2, 30.34762,-97.36909 +/-100m); p4__1 (tier 4, 30.34517,-97.36904 +/-100m)"}],"items":[{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034em:g4034em_g085161916:08516_1916-0004__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Elgin, Texas | 1916 | sanborn08516_006 p4 [2]","metadata":[{"label":"streets","value":"4"},{"label":"intersections","value":"6"},{"label":"confidence","value":"0.02"},{"label":"confidence_provisional","value":"true"},{"label":"confidence_model","value":"corpus-v2"},{"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":"4316.0"}],"created":"2026-10-19T08:55:55Z","modified":"2026-10-19T08:55:55Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034em:g4034em_g085161916:08516_1916-0004__2/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034em:g4034em_g085161916:08516_1916-0004","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"67.5,129.6 34.4,162.5 21.7,578.7 42.0,606.5 30.3,944.8 54.9,1070.9 1549.1,1063.0 1592.4,934.5 1596.1,623.1 1581.4,111.8 1542.7,53.6 1494.5,62.7 1491.3,39.6 1420.8,23.5 1357.4,41.8 1166.2,21.3 929.7,99.0 890.0,151.6 157.8,152.3 67.5,129.6\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034em:g4034em_g085161916:08516_1916-0004__2/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[593.0,928.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-97.368741,30.343379]}},{"type":"Feature","properties":{"resourceCoords":[847.0,177.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-97.369926,30.346456]}}]}}]}