{"id":"https://data.mapsnap.org/runs/v1.3/iiif/chronoscope/sanborn02797_001.main.iiif.json","type":"AnnotationPage","@context":["http://www.w3.org/ns/anno.jsonld"],"label":"Peterson, Iowa | 1914 | mapsnap generated fit (2026-09-23)","creator":{"type":"Software","name":"mapsnap","homepage":"https://mapsnap.org"},"rights":"https://opendatacommons.org/licenses/odbl/1-0/","metadata":[{"label":"generated","value":"2026-09-23"},{"label":"run","value":"corpus-v1"},{"label":"pages","value":"3"},{"label":"placed","value":"2"},{"label":"unplaced","value":"1"},{"label":"fit sources","value":"georef 2"},{"label":"key map","value":"none"},{"label":"split sheets","value":"1 sheet(s) cut into 3 panels"},{"label":"unplaced pages","value":"p1__3 (tier 4, 42.91877,-95.34100 +/-239m)"}],"items":[{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154pm:g027971914:02797_1914-0001__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Peterson, Iowa | 1914 | sanborn02797_001 p1 [1]","metadata":[{"label":"streets","value":"2"},{"label":"intersections","value":"1"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"1170.8"},{"label":"split_canvas_h","value":"1304.0"}],"created":"2026-09-23T16:00:27Z","modified":"2026-09-23T16:00:27Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154pm:g027971914:02797_1914-0001__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154pm:g027971914:02797_1914-0001","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"0.0,0.0 -0.0,326.0 292.2,320.1 292.7,0.0 0.0,0.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154pm:g027971914:02797_1914-0001__1/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-95.33845965521202,42.91947260192654]}},{"type":"Feature","properties":{"resourceCoords":[292.7,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-95.33772205990323,42.91944047386121]}},{"type":"Feature","properties":{"resourceCoords":[292.7,326.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-95.33777100362332,42.91884108909105]}},{"type":"Feature","properties":{"resourceCoords":[0.0,326.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-95.33850859893211,42.91887321715639]}},{"type":"Feature","properties":{"resourceCoords":[266.7,283.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-95.33783,42.918923]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154pm:g027971914:02797_1914-0001__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Peterson, Iowa | 1914 | sanborn02797_001 p1 [2]","metadata":[{"label":"streets","value":"7"},{"label":"intersections","value":"14"},{"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":"2026-09-23T16:00:27Z","modified":"2026-09-23T16:00:27Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154pm:g027971914:02797_1914-0001__2/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154pm:g027971914:02797_1914-0001","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"285.0,1913.0 319.0,1913.0 531.0,1913.0 1380.8,1913.0 1382.3,1207.2 1613.0,1205.8 1613.0,0.0 292.7,0.0 292.2,320.1 0.0,326.0 -0.0,1913.0 285.0,1913.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154pm:g027971914:02797_1914-0001__2/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[276.0,535.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-95.345169,42.919214]}},{"type":"Feature","properties":{"resourceCoords":[1418.0,1247.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-95.342393,42.917788]}}]}}]}