{"id":"https://data.mapsnap.org/runs/v2.0/iiif/chronoscope/sanborn02867_002.main.iiif.json","type":"AnnotationPage","@context":["http://www.w3.org/ns/anno.jsonld"],"label":"West Liberty, Iowa | 1893 | mapsnap generated fit (2026-10-18)","creator":{"type":"Software","name":"mapsnap","homepage":"https://mapsnap.org"},"rights":"https://opendatacommons.org/licenses/odbl/1-0/","metadata":[{"label":"generated","value":"2026-10-18"},{"label":"run","value":"corpus-v2"},{"label":"pages","value":"7"},{"label":"placed","value":"2"},{"label":"unplaced","value":"5"},{"label":"fit sources","value":"georef 2"},{"label":"key map","value":"none"},{"label":"split sheets","value":"2 sheet(s) cut into 7 panels"},{"label":"unplaced pages","value":"p1__1 (tier 4, 41.57077,-91.26305 +/-107m); p1__3 (tier 4, 41.57077,-91.26305 +/-107m); p1__4 (tier 4, 41.57077,-91.26305 +/-107m); p1__5 (tier 4, 41.57077,-91.26305 +/-107m); p2__2 (tier 2, 41.57058,-91.26327 +/-100m)"}],"items":[{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154wm:g028671893:02867_1893-0001__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"West Liberty, Iowa | 1893 | sanborn02867_002 p1 [2]","metadata":[{"label":"streets","value":"5"},{"label":"intersections","value":"9"},{"label":"confidence","value":"0.83"},{"label":"confidence_provisional","value":"true"},{"label":"confidence_model","value":"corpus-v2"},{"label":"split_canvas_x","value":"2676.0"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"3776.0"},{"label":"split_canvas_h","value":"7652.0"}],"created":"2026-10-18T21:15:11Z","modified":"2026-10-18T21:15:11Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154wm:g028671893:02867_1893-0001__2/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154wm:g028671893:02867_1893-0001","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1503.5,1763.3 1509.3,1583.4 1506.5,1383.2 1506.7,1075.9 1502.1,866.6 1506.0,490.4 1504.0,192.0 1412.1,192.0 1468.3,91.3 1448.5,100.2 1266.8,31.0 725.9,75.8 717.7,906.6 735.5,991.4 742.5,991.3 742.5,1024.7 897.7,1763.1 1460.9,1754.0 1503.5,1763.3\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154wm:g028671893:02867_1893-0001__2/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[910.0,192.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-91.264872,41.572212]}},{"type":"Feature","properties":{"resourceCoords":[1504.0,192.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-91.263389,41.572194]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154wm:g028671893:02867_1893-0002__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"West Liberty, Iowa | 1893 | sanborn02867_002 p2 [1]","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"12"},{"label":"confidence","value":"0.90"},{"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":"2026-10-18T21:15:11Z","modified":"2026-10-18T21:15:11Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154wm:g028671893:02867_1893-0002__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154wm:g028671893:02867_1893-0002","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"104.3,95.3 48.0,196.4 140.2,196.3 142.4,495.9 138.8,873.7 143.6,1083.8 143.6,1392.3 146.5,1593.3 140.8,1774.0 680.3,1892.5 1085.9,1863.9 1135.0,1400.1 1135.0,1394.0 1135.7,1394.0 1135.9,1391.7 1350.6,1391.8 1559.0,1388.3 1599.0,1333.1 1519.7,72.7 1337.4,17.8 597.8,15.8 235.5,36.4 104.3,95.3\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154wm:g028671893:02867_1893-0002__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[735.0,791.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-91.261935,41.571069]}},{"type":"Feature","properties":{"resourceCoords":[735.0,197.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-91.26191,41.572174]}}]}}]}