{"id":"https://data.mapsnap.org/runs/v2.0/iiif/chronoscope/sanborn02861_002.main.iiif.json","type":"AnnotationPage","@context":["http://www.w3.org/ns/anno.jsonld"],"label":"Washington, Iowa | 1892 | 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":"15"},{"label":"placed","value":"4"},{"label":"unplaced","value":"11"},{"label":"fit sources","value":"georef 4"},{"label":"key map","value":"none"},{"label":"split sheets","value":"4 sheet(s) cut into 15 panels"},{"label":"unplaced pages","value":"p1__1 (tier 4, 41.29754,-91.69214 +/-163m); p1__2 (tier 4, 41.29754,-91.69214 +/-163m); p1__4 (tier 4, 41.29754,-91.69214 +/-163m); p1__5 (tier 4, 41.29754,-91.69214 +/-163m); p2__2 (tier 4, 41.29754,-91.69214 +/-163m); p2__3 (tier 4, 41.29754,-91.69214 +/-163m); p3__2 (tier 4, 41.29754,-91.69214 +/-163m); p4__2 (tier 4, 41.29754,-91.69214 +/-163m); p4__3 (tier 4, 41.29754,-91.69214 +/-163m); p4__4 (tier 4, 41.29754,-91.69214 +/-163m); p4__5 (tier 4, 41.29754,-91.69214 +/-163m)"}],"items":[{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154wm:g028611892:02861_1892-0001__3/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Washington, Iowa | 1892 | sanborn02861_002 p1 [3]","metadata":[{"label":"streets","value":"4"},{"label":"intersections","value":"10"},{"label":"confidence","value":"0.27"},{"label":"confidence_provisional","value":"true"},{"label":"confidence_model","value":"corpus-v2"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"2976.4"},{"label":"split_canvas_w","value":"4674.4"},{"label":"split_canvas_h","value":"4675.6"}],"created":"2026-10-18T20:25:39Z","modified":"2026-10-18T20:25:39Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154wm:g028611892:02861_1892-0001__3/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154wm:g028611892:02861_1892-0001","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1108.1,1912.0 1167.2,1908.3 1157.0,750.4 823.7,808.2 634.0,757.5 153.7,791.3 1.0,771.5 1.0,806.3 121.0,804.9 132.9,1321.0 618.5,1649.8 619.3,1479.4 1068.6,1832.4 1107.0,1832.2 1108.1,1912.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154wm:g028611892:02861_1892-0001__3/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[132.9,1321.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-91.691702,41.298419]}},{"type":"Feature","properties":{"resourceCoords":[132.9,1840.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-91.6917379,41.2974156]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154wm:g028611892:02861_1892-0002__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Washington, Iowa | 1892 | sanborn02861_002 p2 [1]","metadata":[{"label":"streets","value":"5"},{"label":"intersections","value":"12"},{"label":"confidence","value":"0.51"},{"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":"2026-10-18T20:25:39Z","modified":"2026-10-18T20:25:39Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154wm:g028611892:02861_1892-0002__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154wm:g028611892:02861_1892-0002","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1550.2,1710.0 1555.0,1193.0 1416.5,1192.6 1418.5,1022.5 1475.2,653.9 1561.3,652.6 1555.0,115.0 1429.0,115.0 1429.4,78.6 1174.3,42.2 1132.0,122.8 57.0,124.7 72.7,676.5 487.2,713.7 487.8,717.3 490.0,717.3 490.0,730.1 559.1,1141.2 537.3,1142.8 537.6,1174.9 537.7,1191.7 1002.4,1191.3 1002.1,1281.5 1299.4,1710.9 1550.2,1710.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154wm:g028611892:02861_1892-0002__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1555.0,1193.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-91.6917379,41.2974156]}},{"type":"Feature","properties":{"resourceCoords":[1555.0,115.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-91.6916972,41.2994176]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154wm:g028611892:02861_1892-0003__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Washington, Iowa | 1892 | sanborn02861_002 p3 [1]","metadata":[{"label":"streets","value":"4"},{"label":"intersections","value":"6"},{"label":"confidence","value":"0.27"},{"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":"2026-10-18T20:25:39Z","modified":"2026-10-18T20:25:39Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154wm:g028611892:02861_1892-0003__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154wm:g028611892:02861_1892-0003","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1606.5,1748.0 1605.2,1163.2 1399.5,1181.6 1056.0,766.6 1048.3,674.0 570.8,715.4 554.6,667.0 62.3,745.1 53.3,1770.0 1534.4,1823.1 1587.2,1750.0 1606.5,1748.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154wm:g028611892:02861_1892-0003__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1093.0,1209.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-91.6931267,41.2964677]}},{"type":"Feature","properties":{"resourceCoords":[1575.0,71.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-91.691702,41.298419]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154wm:g028611892:02861_1892-0004__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Washington, Iowa | 1892 | sanborn02861_002 p4 [1]","metadata":[{"label":"streets","value":"3"},{"label":"intersections","value":"3"},{"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":"4771.2"},{"label":"split_canvas_h","value":"7652.0"}],"created":"2026-10-18T20:25:39Z","modified":"2026-10-18T20:25:39Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154wm:g028611892:02861_1892-0004__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154wm:g028611892:02861_1892-0004","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"103.7,1217.1 54.4,1791.1 160.8,1789.7 1106.0,1843.6 1169.3,1606.6 1151.5,817.1 1191.8,802.1 1191.8,758.6 1191.8,697.5 1151.2,697.1 680.8,317.2 677.5,497.4 168.4,142.6 81.0,143.8 22.6,518.1 20.2,691.0 160.9,691.6 155.0,1217.0 103.7,1217.1\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154wm:g028611892:02861_1892-0004__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[155.0,1217.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-91.6917693,41.2964556]}},{"type":"Feature","properties":{"resourceCoords":[1126.8,1217.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-91.6894047,41.2964321]}}]}}]}