{"id":"https://data.mapsnap.org/runs/v2.0/iiif/chronoscope/sanborn02863_003.main.iiif.json","type":"AnnotationPage","@context":["http://www.w3.org/ns/anno.jsonld"],"label":"Waukon, Iowa | 1902 | mapsnap generated fit (2026-10-22)","creator":{"type":"Software","name":"mapsnap","homepage":"https://mapsnap.org"},"rights":"https://opendatacommons.org/licenses/odbl/1-0/","metadata":[{"label":"generated","value":"2026-10-22"},{"label":"run","value":"corpus-v2.1"},{"label":"pages","value":"15"},{"label":"placed","value":"1"},{"label":"unplaced","value":"14"},{"label":"fit sources","value":"snap:0 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, 43.26759,-91.47625 +/-100m); p1__2 (tier 4, 43.26759,-91.47625 +/-100m); p1__3 (tier 4, 43.26759,-91.47625 +/-100m); p1__4 (tier 4, 43.26759,-91.47625 +/-100m); p1__5 (tier 4, 43.26759,-91.47625 +/-100m); p2 (tier 1, 43.27028,-91.48242 +/-305m); p3__1 (tier 1, 43.26967,-91.47418 +/-105m); p4__1 (tier 1, 43.26744,-91.48717 +/-100m); p4__2 (tier 1, 43.26644,-91.47731 +/-100m); p4__3 (tier 1, 43.27611,-91.47362 +/-100m); p4__4 (tier 1, 43.26707,-91.47264 +/-100m); p4__5 (tier 1, 43.26904,-91.47568 +/-100m); p4__6 (tier 1, 43.26991,-91.48580 +/-261m); p4__7 (tier 1, 43.27572,-91.48462 +/-100m)"}],"items":[{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154wm:g028631902:02863_1902-0003__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Waukon, Iowa | 1902 | sanborn02863_003 p3 [2]","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.82"},{"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":"7652.0"}],"created":"2026-10-22T13:48:53Z","modified":"2026-10-22T13:48:53Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154wm:g028631902:02863_1902-0003__2/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154wm:g028631902:02863_1902-0003","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"107.3,1444.3 515.1,1477.4 535.4,1477.5 702.5,1478.2 702.5,1487.7 702.5,1492.6 784.5,1499.3 781.9,1793.7 979.5,1795.5 1098.9,1873.6 1543.7,1863.5 1590.5,553.1 1545.3,69.0 797.5,27.4 76.9,84.2 107.3,1444.3\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154wm:g028631902:02863_1902-0003__2/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-91.47838416667885,43.269420768041336]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-91.47415110903198,43.2694480448166]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-91.47410699361241,43.2657666025039]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-91.47834005125928,43.26573932572864]}}]}}]}