{"id":"https://data.mapsnap.org/runs/v1.3/iiif/chronoscope/sanborn02788_002.main.iiif.json","type":"AnnotationPage","@context":["http://www.w3.org/ns/anno.jsonld"],"label":"Oskaloosa, Iowa | 1891 | mapsnap generated fit (2026-09-22)","creator":{"type":"Software","name":"mapsnap","homepage":"https://mapsnap.org"},"rights":"https://opendatacommons.org/licenses/odbl/1-0/","metadata":[{"label":"generated","value":"2026-09-22"},{"label":"run","value":"corpus-v1"},{"label":"pages","value":"13"},{"label":"placed","value":"2"},{"label":"unplaced","value":"11"},{"label":"fit sources","value":"georef 1, georef:misscale 1"},{"label":"key map","value":"georeferenced"},{"label":"split sheets","value":"3 sheet(s) cut into 8 panels"},{"label":"unplaced pages","value":"p1__2 (tier 3, 41.29567,-92.65415 +/-409m); p2__1 (tier 2, 41.29559,-92.64331 +/-150m); p2__2 (tier 2, 41.29559,-92.64331 +/-150m); p3 (tier 3, 41.29313,-92.65051 +/-409m); p4 (tier 3, 41.29453,-92.64675 +/-409m); p6__1 (tier 2, 41.29489,-92.64154 +/-100m); p6__2 (tier 2, 41.29489,-92.64154 +/-100m); p6__3 (tier 2, 41.29489,-92.64154 +/-100m); p6__4 (tier 2, 41.29489,-92.64154 +/-100m); p7 (tier 3, 41.29136,-92.64709 +/-1125m); p8 (tier 2, 41.29429,-92.63603 +/-100m)"}],"items":[{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154om:g027881891:02788_1891-0001__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Oskaloosa, Iowa | 1891 | sanborn02788_002 p1 [1]","metadata":[{"label":"streets","value":"12"},{"label":"intersections","value":"39"},{"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":"2026-09-22T06:44:52Z","modified":"2026-09-22T06:44:52Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154om:g027881891:02788_1891-0001__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154om:g027881891:02788_1891-0001","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1613.0,1913.0 1613.0,494.2 1613.0,235.2 963.0,234.8 953.0,0.0 -0.0,-0.0 -0.0,1913.0 1613.0,1913.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154om:g027881891:02788_1891-0001__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1212.0,1435.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-92.6414972,41.291739]}},{"type":"Feature","properties":{"resourceCoords":[1360.0,1582.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-92.6391473,41.2899747]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154om:g027881891:02788_1891-0005/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Oskaloosa, Iowa | 1891 | sanborn02788_002 p5","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-22T06:44:52Z","modified":"2026-09-22T06:44:52Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154om:g027881891:02788_1891-0005/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154om:g027881891:02788_1891-0005","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"109.8,1107.0 577.7,1117.7 578.7,644.6 110.2,642.5 111.7,0.0 1499.4,0.0 1497.8,179.4 1613.0,180.1 1613.0,648.4 1488.5,646.5 1484.0,1585.0 1613.0,1585.5 1613.0,1913.0 96.8,1913.0 109.8,1107.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154om:g027881891:02788_1891-0005/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-92.64541431950843,41.296563415274406]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-92.64123045658215,41.29660192143503]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-92.64116967283243,41.292873874400904]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-92.64535353575872,41.29283536824028]}}]}}]}