{"id":"https://data.mapsnap.org/runs/v2.0/iiif/chronoscope/sanborn05128_002.main.iiif.json","type":"AnnotationPage","@context":["http://www.w3.org/ns/anno.jsonld"],"label":"Wilsall, Montana | 1921 | 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":"4"},{"label":"placed","value":"3"},{"label":"unplaced","value":"1"},{"label":"fit sources","value":"georef 3"},{"label":"key map","value":"none"},{"label":"split sheets","value":"2 sheet(s) cut into 4 panels"},{"label":"unplaced pages","value":"p1__2 (tier 4, 45.99270,-110.66193 +/-233m)"}],"items":[{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd425m:g4254m:g4254wm:g4254wm_g051281921:05128_1921-0001__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Wilsall, Montana | 1921 | sanborn05128_002 p1 [1]","metadata":[{"label":"streets","value":"7"},{"label":"intersections","value":"14"},{"label":"confidence","value":"0.76"},{"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":"2026-10-18T12:28:46Z","modified":"2026-10-18T12:28:46Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd425m:g4254m:g4254wm:g4254wm_g051281921:05128_1921-0001__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd425m:g4254m:g4254wm:g4254wm_g051281921:05128_1921-0001","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"27.8,1912.0 109.2,1912.0 112.3,1815.6 805.6,1832.7 1019.9,1844.7 1106.1,1818.0 1288.9,1822.2 1495.0,1840.1 1495.1,1912.0 1569.8,1912.0 1611.8,280.1 1549.9,98.2 1419.9,18.3 1109.1,90.3 478.1,53.0 386.3,113.8 383.8,328.0 354.9,328.0 53.5,377.2 45.6,623.2 96.3,683.5 14.6,1068.0 27.8,1912.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd425m:g4254m:g4254wm:g4254wm_g051281921:05128_1921-0001__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[798.0,1357.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-110.6604028,45.9937076]}},{"type":"Feature","properties":{"resourceCoords":[1494.0,1357.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-110.660125,45.9924544]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd425m:g4254m:g4254wm:g4254wm_g051281921:05128_1921-0002__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Wilsall, Montana | 1921 | sanborn05128_002 p2 [1]","metadata":[{"label":"streets","value":"5"},{"label":"intersections","value":"6"},{"label":"confidence","value":"0.83"},{"label":"confidence_provisional","value":"true"},{"label":"confidence_model","value":"corpus-v2"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"4954.4"},{"label":"split_canvas_w","value":"6452.0"},{"label":"split_canvas_h","value":"2697.6"}],"created":"2026-10-18T12:28:46Z","modified":"2026-10-18T12:28:46Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd425m:g4254m:g4254wm:g4254wm_g051281921:05128_1921-0002__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd425m:g4254m:g4254wm:g4254wm_g051281921:05128_1921-0002","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"192.6,1912.0 195.9,1905.8 1524.1,1911.7 1591.7,1854.7 1561.3,1293.9 1439.6,1365.4 1122.8,1270.6 798.0,1270.6 131.9,1246.9 113.2,1706.9 125.3,1707.0 155.7,1912.0 192.6,1912.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd425m:g4254m:g4254wm:g4254wm_g051281921:05128_1921-0002__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[798.0,1270.6],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-110.6624456,45.990966]}},{"type":"Feature","properties":{"resourceCoords":[1487.0,1270.6],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-110.6621857,45.9897142]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd425m:g4254m:g4254wm:g4254wm_g051281921:05128_1921-0002__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Wilsall, Montana | 1921 | sanborn05128_002 p2 [2]","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"12"},{"label":"confidence","value":"0.88"},{"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":"4954.4"}],"created":"2026-10-18T12:28:46Z","modified":"2026-10-18T12:28:46Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd425m:g4254m:g4254wm:g4254wm_g051281921:05128_1921-0002__2/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd425m:g4254m:g4254wm:g4254wm_g051281921:05128_1921-0002","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1537.0,1167.1 1503.5,961.2 1491.3,961.2 1503.7,497.8 1566.8,495.3 1567.8,83.0 1493.2,84.8 1491.3,13.0 1301.0,1.0 1099.5,1.0 1017.0,28.7 802.7,21.8 110.0,21.0 109.2,117.3 27.9,119.2 51.9,730.9 34.9,1205.8 105.4,1237.4 1537.5,1237.1 1573.8,1167.0 1537.0,1167.1\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd425m:g4254m:g4254wm:g4254wm_g051281921:05128_1921-0002__2/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[801.0,975.7],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-110.6641173,45.9933408]}},{"type":"Feature","properties":{"resourceCoords":[110.0,21.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-110.661865,45.9948151]}}]}}]}