{"id":"https://data.mapsnap.org/runs/v2.0/iiif/chronoscope/sanborn02668_004.main.iiif.json","type":"AnnotationPage","@context":["http://www.w3.org/ns/anno.jsonld"],"label":"Glidden, Iowa | 1933 | 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":"6"},{"label":"placed","value":"4"},{"label":"unplaced","value":"2"},{"label":"fit sources","value":"georef 4"},{"label":"key map","value":"none"},{"label":"split sheets","value":"1 sheet(s) cut into 5 panels"},{"label":"unplaced pages","value":"p2__3 (tier 1, 42.06234,-94.73070 +/-100m); p2__4 (tier 1, 42.06208,-94.72825 +/-100m)"}],"items":[{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154gm:g026681933:02668_1933-0001/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Glidden, Iowa | 1933 | sanborn02668_004 p1","metadata":[{"label":"streets","value":"7"},{"label":"intersections","value":"15"},{"label":"confidence","value":"0.97"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T16:57:02Z","modified":"2026-10-18T16:57:02Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154gm:g026681933:02668_1933-0001/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154gm:g026681933:02668_1933-0001","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"134.3,78.7 413.8,92.5 717.5,95.1 1155.7,90.5 1536.4,94.5 1533.8,676.9 1527.1,1265.7 1546.5,1265.5 1585.6,1549.5 1537.3,1855.8 243.0,1786.3 54.3,1827.0 28.6,118.9 58.5,47.0 135.4,51.8 134.3,78.7\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154gm:g026681933:02668_1933-0001/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[936.0,1264.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-94.7288912,42.0556678]}},{"type":"Feature","properties":{"resourceCoords":[344.0,1264.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-94.7303776,42.0556517]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154gm:g026681933:02668_1933-0002__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Glidden, Iowa | 1933 | sanborn02668_004 p2 [1]","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"9"},{"label":"confidence","value":"0.74"},{"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":"4971.2"},{"label":"split_canvas_h","value":"7652.0"}],"created":"2026-10-18T16:57:02Z","modified":"2026-10-18T16:57:02Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154gm:g026681933:02668_1933-0002__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154gm:g026681933:02668_1933-0002","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"119.0,1875.7 126.3,1828.0 366.0,1874.1 614.0,1825.7 674.5,1607.9 929.6,1566.8 969.5,1225.0 1050.1,1174.9 1210.0,1205.6 1175.0,1059.7 1235.2,871.0 1135.5,658.9 226.1,605.9 224.5,602.0 219.6,602.0 219.6,602.0 219.5,589.4 176.4,481.6 187.4,110.4 151.6,59.1 64.0,87.3 59.3,62.7 63.0,412.0 63.0,998.0 58.8,1590.4 78.3,1590.1 119.0,1875.7\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154gm:g026681933:02668_1933-0002__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[63.0,412.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-94.7274266,42.0578643]}},{"type":"Feature","properties":{"resourceCoords":[63.0,998.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-94.7274117,42.0567785]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154gm:g026681933:02668_1933-0002__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Glidden, Iowa | 1933 | sanborn02668_004 p2 [2]","metadata":[{"label":"streets","value":"5"},{"label":"intersections","value":"8"},{"label":"confidence","value":"0.76"},{"label":"confidence_provisional","value":"true"},{"label":"confidence_model","value":"corpus-v2"},{"label":"split_canvas_x","value":"859.6"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"5592.4"},{"label":"split_canvas_h","value":"2408.0"}],"created":"2026-10-18T16:57:02Z","modified":"2026-10-18T16:57:02Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154gm:g026681933:02668_1933-0002__2/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154gm:g026681933:02668_1933-0002","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"219.4,575.0 219.5,584.5 219.5,588.5 219.6,601.0 438.7,601.0 489.9,601.0 783.2,589.0 1205.7,563.7 1573.3,549.4 1554.7,214.2 1511.0,29.4 279.9,30.4 247.2,297.4 291.9,575.9 219.4,575.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154gm:g026681933:02668_1933-0002__2/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[998.4,576.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-94.7289223,42.0578516]}},{"type":"Feature","properties":{"resourceCoords":[406.8,43.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-94.7304108,42.0589186]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154gm:g026681933:02668_1933-0002__5/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Glidden, Iowa | 1933 | sanborn02668_004 p2 [5]","metadata":[{"label":"streets","value":"2"},{"label":"intersections","value":"1"},{"label":"confidence","value":"0.67"},{"label":"confidence_provisional","value":"true"},{"label":"confidence_model","value":"corpus-v2"},{"label":"split_canvas_x","value":"2692.4"},{"label":"split_canvas_y","value":"6485.2"},{"label":"split_canvas_w","value":"1238.4"},{"label":"split_canvas_h","value":"1166.8"}],"created":"2026-10-18T16:57:02Z","modified":"2026-10-18T16:57:02Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154gm:g026681933:02668_1933-0002__5/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154gm:g026681933:02668_1933-0002","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"962.1,1634.5 687.5,1662.8 679.7,1908.5 976.0,1909.2 962.1,1634.5\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154gm:g026681933:02668_1933-0002__5/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[673.1,1621.3],"type":"corner"},"geometry":{"type":"Point","coordinates":[-94.733464460628,42.05790941081595]}},{"type":"Feature","properties":{"resourceCoords":[982.7,1621.3],"type":"corner"},"geometry":{"type":"Point","coordinates":[-94.73268602836548,42.05791066886156]}},{"type":"Feature","properties":{"resourceCoords":[982.7,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-94.73268443300104,42.05736604129291]}},{"type":"Feature","properties":{"resourceCoords":[673.1,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-94.73346286526356,42.0573647832473]}},{"type":"Feature","properties":{"resourceCoords":[719.0,1667.2],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-94.7333487,42.0578238]}}]}}]}