{"id":"https://data.mapsnap.org/runs/v2.0/iiif/chronoscope/sanborn02618_001.main.iiif.json","type":"AnnotationPage","@context":["http://www.w3.org/ns/anno.jsonld"],"label":"Corydon, 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":"5"},{"label":"placed","value":"2"},{"label":"unplaced","value":"3"},{"label":"fit sources","value":"georef-snap 1, georef 1"},{"label":"key map","value":"none"},{"label":"split sheets","value":"1 sheet(s) cut into 4 panels"},{"label":"unplaced pages","value":"p2__1 (tier 1, 40.75463,-93.31846 +/-133m); p2__3 (tier 1, 40.75488,-93.32638 +/-100m); p2__4 (tier 1, 40.75408,-93.32553 +/-100m)"}],"items":[{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154cm:g026181893:02618_1893-0001/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Corydon, Iowa | 1893 | sanborn02618_001 p1","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.88"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T14:51:53Z","modified":"2026-10-18T14:51:53Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154cm:g026181893:02618_1893-0001/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154cm:g026181893:02618_1893-0001","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"43.8,1870.8 1561.6,1878.2 1609.2,831.8 1577.4,96.1 1457.5,24.8 1.0,29.4 1.0,29.6 30.2,34.8 87.9,619.5 82.2,619.5 75.3,966.9 87.5,966.7 81.0,1279.5 43.8,1870.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154cm:g026181893:02618_1893-0001/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[372.0,945.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-93.31886465199128,40.757828690816496]}},{"type":"Feature","properties":{"resourceCoords":[689.0,613.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-93.31807047705043,40.758464929909984]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154cm:g026181893:02618_1893-0002__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Corydon, Iowa | 1893 | sanborn02618_001 p2 [2]","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"6"},{"label":"confidence","value":"0.53"},{"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":"2026-10-18T14:51:53Z","modified":"2026-10-18T14:51:53Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154cm:g026181893:02618_1893-0002__2/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154cm:g026181893:02618_1893-0002","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1074.3,492.9 1074.3,495.0 1071.1,495.0 914.2,596.8 866.8,877.2 866.8,888.2 865.0,888.2 864.2,892.5 61.3,890.5 39.2,1299.0 88.2,1404.8 635.0,1433.6 635.9,1533.8 650.7,1807.6 714.0,1878.2 1498.4,1880.0 1533.9,1291.1 1539.6,979.5 1527.5,979.7 1533.5,633.8 1539.2,633.8 1480.3,51.5 1450.2,46.3 1148.0,47.9 1076.5,491.5 1074.3,492.9\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154cm:g026181893:02618_1893-0002__2/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1225.0,51.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-93.320382,40.7595616]}},{"type":"Feature","properties":{"resourceCoords":[1225.0,1873.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-93.320371,40.756072]}}]}}]}