{"id":"https://data.mapsnap.org/runs/v2.0/iiif/chronoscope/sanborn02638_003.main.iiif.json","type":"AnnotationPage","@context":["http://www.w3.org/ns/anno.jsonld"],"label":"Dysart, Iowa | 1913 | 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":"4"},{"label":"unplaced","value":"3"},{"label":"fit sources","value":"georef-snap 3, georef 1"},{"label":"key map","value":"none"},{"label":"split sheets","value":"2 sheet(s) cut into 6 panels"},{"label":"unplaced pages","value":"p1__1 (tier 1, 42.16604,-92.30699 +/-196m); p1__3 (tier 4, 42.17075,-92.30883 +/-457m); p3__2 (tier 1, 42.16970,-92.30340 +/-100m)"}],"items":[{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154dm:g026381913:02638_1913-0001__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Dysart, Iowa | 1913 | sanborn02638_003 p1 [2]","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"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":"2016.0"},{"label":"split_canvas_w","value":"6452.0"},{"label":"split_canvas_h","value":"5636.0"}],"created":"2026-10-18T20:16:55Z","modified":"2026-10-18T20:16:55Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154dm:g026381913:02638_1913-0001__2/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154dm:g026381913:02638_1913-0001","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"909.0,504.0 909.0,543.7 957.6,545.0 980.6,615.5 909.0,704.5 909.0,706.5 907.4,706.5 904.9,709.6 45.9,709.8 56.0,1114.2 274.6,1119.5 483.0,1119.5 483.0,1119.5 489.3,1124.7 525.7,1443.2 706.2,1466.0 759.1,1466.0 759.1,1472.7 760.7,1472.9 763.2,1856.2 807.2,1911.9 1580.0,1871.2 1568.5,558.1 1612.0,550.5 1612.0,504.0 909.0,504.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154dm:g026381913:02638_1913-0001__2/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1302.0,1870.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-92.30780707806844,42.16676578390048]}},{"type":"Feature","properties":{"resourceCoords":[220.0,523.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-92.31049465281231,42.16937671452263]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154dm:g026381913:02638_1913-0001__4/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Dysart, Iowa | 1913 | sanborn02638_003 p1 [4]","metadata":[{"label":"streets","value":"3"},{"label":"intersections","value":"1"},{"label":"confidence","value":"0.55"},{"label":"confidence_provisional","value":"true"},{"label":"confidence_model","value":"corpus-v2"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"5864.0"},{"label":"split_canvas_w","value":"3048.4"},{"label":"split_canvas_h","value":"1788.0"}],"created":"2026-10-18T20:16:55Z","modified":"2026-10-18T20:16:55Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154dm:g026381913:02638_1913-0001__4/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154dm:g026381913:02638_1913-0001","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"734.6,1570.3 552.2,1607.3 551.0,1502.1 466.4,1482.0 23.9,1521.8 28.0,1900.7 688.8,1886.5 734.6,1570.3\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154dm:g026381913:02638_1913-0001__4/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,1466.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-92.3145626277379,42.17329270255024]}},{"type":"Feature","properties":{"resourceCoords":[762.1,1466.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-92.3125898728457,42.17327684343077]}},{"type":"Feature","properties":{"resourceCoords":[762.1,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-92.31260240161453,42.1724175353263]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-92.31457515650672,42.172433394445775]}},{"type":"Feature","properties":{"resourceCoords":[600.1,1556.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-92.3130118,42.1731072]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154dm:g026381913:02638_1913-0002/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Dysart, Iowa | 1913 | sanborn02638_003 p2","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.86"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T20:16:55Z","modified":"2026-10-18T20:16:55Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154dm:g026381913:02638_1913-0002/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154dm:g026381913:02638_1913-0002","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"35.8,1839.0 52.9,87.0 442.8,25.6 1182.7,29.1 1421.0,102.5 1556.8,74.9 1568.7,538.7 1560.7,538.6 1560.2,1191.5 1556.6,1842.7 1350.4,1876.6 1349.9,1831.0 658.8,1823.5 658.3,1862.5 35.8,1839.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154dm:g026381913:02638_1913-0002/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[510.0,1192.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-92.30909173780205,42.17060477386019]}},{"type":"Feature","properties":{"resourceCoords":[1538.0,1192.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-92.30641071810314,42.17057668256058]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154dm:g026381913:02638_1913-0003__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Dysart, Iowa | 1913 | sanborn02638_003 p3 [1]","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.87"},{"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":"2026-10-18T20:16:55Z","modified":"2026-10-18T20:16:55Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154dm:g026381913:02638_1913-0003__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154dm:g026381913:02638_1913-0003","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"832.0,431.5 830.0,431.5 830.0,420.4 764.9,55.5 271.2,25.8 33.3,77.2 51.4,551.8 43.3,551.8 51.1,1219.9 55.7,1886.4 84.8,1881.2 1420.9,1881.3 1541.1,1835.2 1554.7,470.3 832.1,432.4 832.0,431.5\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154dm:g026381913:02638_1913-0003__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[597.0,1220.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-92.30496210106188,42.17054945453806]}},{"type":"Feature","properties":{"resourceCoords":[1320.0,536.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-92.30307376302899,42.17180454611122]}}]}}]}