{"id":"https://data.mapsnap.org/runs/v2.0/iiif/chronoscope/sanborn04710_001.main.iiif.json","type":"AnnotationPage","@context":["http://www.w3.org/ns/anno.jsonld"],"label":"Ironton, Missouri | 1886 | mapsnap generated fit (2026-10-22)","creator":{"type":"Software","name":"mapsnap","homepage":"https://mapsnap.org"},"rights":"https://opendatacommons.org/licenses/odbl/1-0/","metadata":[{"label":"generated","value":"2026-10-22"},{"label":"run","value":"corpus-v2.1"},{"label":"pages","value":"8"},{"label":"placed","value":"4"},{"label":"unplaced","value":"4"},{"label":"fit sources","value":"georef 3, georef-snap 1"},{"label":"key map","value":"none"},{"label":"split sheets","value":"2 sheet(s) cut into 7 panels"},{"label":"unplaced pages","value":"p2__1 (tier 4, 37.60601,-90.63036 +/-2000m); p2__2 (tier 4, 37.60601,-90.63036 +/-2000m); p2__3 (tier 4, 37.60601,-90.63036 +/-2000m); p2__4 (tier 4, 37.60601,-90.63036 +/-2000m)"}],"items":[{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd416m:g4164m:g4164im:g4164im_g047101886:04710_1886-0001__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Ironton, Missouri | 1886 | sanborn04710_001 p1 [1]","metadata":[{"label":"streets","value":"5"},{"label":"intersections","value":"10"},{"label":"confidence","value":"0.71"},{"label":"confidence_provisional","value":"true"},{"label":"confidence_model","value":"corpus-v2"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"3804.8"},{"label":"split_canvas_w","value":"6452.0"},{"label":"split_canvas_h","value":"3847.2"}],"created":"2026-10-22T13:42:59Z","modified":"2026-10-22T13:42:59Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd416m:g4164m:g4164im:g4164im_g047101886:04710_1886-0001__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd416m:g4164m:g4164im:g4164im_g047101886:04710_1886-0001","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1612.0,1886.8 1612.0,1870.6 1448.2,1872.0 1437.5,1428.0 1436.3,992.0 1236.3,1033.7 867.5,958.7 258.1,994.1 219.3,1146.7 84.6,1257.3 114.4,1337.0 61.3,1389.7 45.2,1621.4 82.0,1906.2 1612.0,1886.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd416m:g4164m:g4164im:g4164im_g047101886:04710_1886-0001__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[981.0,1426.1],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-90.6275679,37.5974237]}},{"type":"Feature","properties":{"resourceCoords":[981.0,983.2],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-90.6286367,37.597365]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd416m:g4164m:g4164im:g4164im_g047101886:04710_1886-0001__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Ironton, Missouri | 1886 | sanborn04710_001 p1 [2]","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"19"},{"label":"confidence","value":"0.95"},{"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":"3852.8"}],"created":"2026-10-22T13:42:59Z","modified":"2026-10-22T13:42:59Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd416m:g4164m:g4164im:g4164im_g047101886:04710_1886-0001__2/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd416m:g4164m:g4164im:g4164im_g047101886:04710_1886-0001","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"104.2,33.9 101.5,478.8 108.4,932.0 275.6,932.0 276.4,948.5 1508.2,943.7 1526.8,940.9 1572.5,882.6 1577.7,263.4 1513.5,71.1 185.2,17.7 104.2,33.9\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd416m:g4164m:g4164im:g4164im_g047101886:04710_1886-0001__2/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[819.0,488.1],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-90.6277502,37.5996417]}},{"type":"Feature","properties":{"resourceCoords":[819.0,26.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-90.6288423,37.5995741]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd416m:g4164m:g4164im:g4164im_g047101886:04710_1886-0002__5/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Ironton, Missouri | 1886 | sanborn04710_001 p2 [5]","metadata":[{"label":"streets","value":"5"},{"label":"intersections","value":"6"},{"label":"confidence","value":"0.89"},{"label":"confidence_provisional","value":"true"},{"label":"confidence_model","value":"corpus-v2"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"3733.2"},{"label":"split_canvas_w","value":"6452.0"},{"label":"split_canvas_h","value":"3918.8"}],"created":"2026-10-22T13:42:59Z","modified":"2026-10-22T13:42:59Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd416m:g4164m:g4164im:g4164im_g047101886:04710_1886-0002__5/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd416m:g4164m:g4164im:g4164im_g047101886:04710_1886-0002","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"131.3,1864.8 369.1,1912.0 376.7,1912.0 1535.9,1875.8 1571.5,972.8 174.0,962.5 54.4,1031.5 100.5,1170.6 45.8,1230.5 24.9,1585.5 57.8,1802.0 131.3,1864.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd416m:g4164m:g4164im:g4164im_g047101886:04710_1886-0002__5/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[341.0,971.3],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-90.6291979,37.6034513]}},{"type":"Feature","properties":{"resourceCoords":[1108.0,1869.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-90.6271991,37.6050355]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd416m:g4164m:g4164im:g4164im_g047101886:04710_1886-0003/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Ironton, Missouri | 1886 | sanborn04710_001 p3","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.69"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-22T13:42:59Z","modified":"2026-10-22T13:42:59Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd416m:g4164m:g4164im:g4164im_g047101886:04710_1886-0003/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd416m:g4164m:g4164im:g4164im_g047101886:04710_1886-0003","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1236.1,1848.4 958.6,1879.8 100.2,1805.3 131.9,1623.3 56.8,1593.1 30.9,1424.5 55.3,45.5 1245.3,35.9 1331.0,107.7 1390.0,64.1 1495.3,95.8 1593.2,738.0 1587.8,1264.9 1492.7,1580.9 1565.8,1618.2 1564.2,1801.6 1333.1,1755.0 1217.1,1779.8 1197.9,1801.0 1236.1,1848.4\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd416m:g4164m:g4164im:g4164im_g047101886:04710_1886-0003/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[72.0,257.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-90.64002797986774,37.623793084653705]}},{"type":"Feature","properties":{"resourceCoords":[1272.0,1613.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-90.63645223268223,37.62204078033986]}}]}}]}