{"id":"https://data.mapsnap.org/runs/v2.0/iiif/chronoscope/sanborn06739_006.main.iiif.json","type":"AnnotationPage","@context":["http://www.w3.org/ns/anno.jsonld"],"label":"Ironton, Ohio | 1909 | mapsnap generated fit (2026-10-19)","creator":{"type":"Software","name":"mapsnap","homepage":"https://mapsnap.org"},"rights":"https://opendatacommons.org/licenses/odbl/1-0/","metadata":[{"label":"generated","value":"2026-10-19"},{"label":"run","value":"corpus-v2"},{"label":"pages","value":"65"},{"label":"placed","value":"30"},{"label":"unplaced","value":"35"},{"label":"fit sources","value":"georef-snap 16, georef 14"},{"label":"key map","value":"georeferenced"},{"label":"split sheets","value":"11 sheet(s) cut into 39 panels"},{"label":"unplaced pages","value":"p18__1 (tier 1, 38.52692,-82.68342 +/-100m); p18__2 (tier 1, 38.52912,-82.68331 +/-219m); p24__1 (tier 1, 38.52228,-82.67839 +/-221m); p24__2 (tier 1, 38.51962,-82.67617 +/-219m); p3 (tier 2, 38.54300,-82.69224 +/-297m); p30__1 (tier 3, 38.51370,-82.67246 +/-631m); p30__2 (tier 1, 38.51697,-82.67273 +/-135m); p30__3 (tier 1, 38.51924,-82.67570 +/-113m); p32__2 (tier 1, 38.50670,-82.66298 +/-126m); p32__3 (tier 1, 38.51035,-82.65975 +/-106m); p32__4 (tier 1, 38.51896,-82.66776 +/-141m); p33__1 (tier 1, 38.50472,-82.66015 +/-100m); p33__2 (tier 3, 38.50386,-82.66117 +/-631m); p33__3 (tier 1, 38.50486,-82.66062 +/-108m); p34__1 (tier 4, 38.52846,-82.67709 +/-4551m); p34__2 (tier 1, 38.53776,-82.68288 +/-226m); p34__3 (tier 4, 38.52846,-82.67709 +/-4551m); p35__1 (tier 4, 38.52846,-82.67709 +/-4551m); p35__2 (tier 4, 38.52846,-82.67709 +/-4551m); p35__3 (tier 4, 38.52846,-82.67709 +/-4551m); p35__4 (tier 4, 38.52846,-82.67709 +/-4551m); p35__5 (tier 4, 38.52846,-82.67709 +/-4551m); p36__1 (tier 1, 38.52387,-82.66741 +/-114m); p36__2 (tier 3, 38.52402,-82.66678 +/-631m); p36__3 (tier 1, 38.52339,-82.66844 +/-139m); p36__4 (tier 1, 38.52311,-82.66744 +/-118m); p36__5 (tier 1, 38.52415,-82.66851 +/-107m); p36__6 (tier 1, 38.52330,-82.66792 +/-119m); p37__2 (tier 4, 38.52846,-82.67709 +/-4551m); p37__3 (tier 4, 38.52846,-82.67709 +/-4551m); p37__4 (tier 4, 38.52846,-82.67709 +/-4551m); p37__5 (tier 1, 38.54006,-82.67452 +/-112m); p37__6 (tier 4, 38.52846,-82.67709 +/-4551m); p38 (tier 4, 38.52846,-82.67709 +/-4551m); p4__2 (tier 1, 38.54302,-82.68907 +/-100m)"}],"items":[{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084im:g4084im_g067391909:06739_1909-0010/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Ironton, Ohio | 1909 | sanborn06739_006 p10","metadata":[{"label":"streets","value":"8"},{"label":"intersections","value":"17"},{"label":"confidence","value":"0.94"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-19T01:21:49Z","modified":"2026-10-19T01:21:49Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084im:g4084im_g067391909:06739_1909-0010/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084im:g4084im_g067391909:06739_1909-0010","type":"ImageService3","width":1628,"height":1927},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"5.3,1339.2 16.4,836.2 55.4,836.4 55.1,349.5 31.5,349.3 28.9,67.5 568.8,57.6 569.2,86.1 1089.7,52.9 1089.8,56.4 1593.4,120.3 1597.2,327.8 1593.2,593.7 1599.0,842.3 1603.2,1338.2 1605.5,1846.0 1100.0,1851.0 1037.4,1854.1 455.0,1846.1 308.1,1847.8 138.6,1857.4 8.8,1856.2 5.3,1339.2\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084im:g4084im_g067391909:06739_1909-0010/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1100.0,842.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-82.680786,38.536768]}},{"type":"Feature","properties":{"resourceCoords":[1100.0,1851.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-82.68283,38.53575]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084im:g4084im_g067391909:06739_1909-0011/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Ironton, Ohio | 1909 | sanborn06739_006 p11","metadata":[{"label":"streets","value":"3"},{"label":"intersections","value":"2"},{"label":"confidence","value":"0.67"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-19T01:21:49Z","modified":"2026-10-19T01:21:49Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084im:g4084im_g067391909:06739_1909-0011/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084im:g4084im_g067391909:06739_1909-0011","type":"ImageService3","width":1628,"height":1927},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1374.4,1850.3 1378.1,1844.5 1575.6,1851.6 1590.8,244.7 1519.1,131.9 1368.3,263.8 1037.1,28.9 934.5,31.4 863.2,104.1 672.1,33.6 220.9,68.0 136.8,14.8 136.6,1.0 80.8,1.0 98.5,849.9 70.3,850.4 104.6,1365.9 101.1,1366.0 39.1,1865.1 105.0,1863.7 326.0,1859.0 326.2,1848.8 1374.2,1842.2 1374.4,1850.3\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084im:g4084im_g067391909:06739_1909-0011/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[326.0,1360.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-82.6787549,38.5378145]}},{"type":"Feature","properties":{"resourceCoords":[326.0,1859.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-82.678108,38.537015]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084im:g4084im_g067391909:06739_1909-0012/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Ironton, Ohio | 1909 | sanborn06739_006 p12","metadata":[{"label":"streets","value":"8"},{"label":"intersections","value":"15"},{"label":"confidence","value":"0.97"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-19T01:21:49Z","modified":"2026-10-19T01:21:49Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084im:g4084im_g067391909:06739_1909-0012/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084im:g4084im_g067391909:06739_1909-0012","type":"ImageService3","width":1628,"height":1927},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1587.5,1856.4 1120.7,1900.2 86.2,1839.7 50.6,1420.8 58.3,1224.2 59.1,980.0 55.3,659.5 50.9,63.5 533.8,62.5 1017.8,63.4 1470.0,55.0 1589.7,54.4 1586.0,891.4 1596.9,1233.7 1597.8,1464.0 1622.2,1461.1 1587.5,1856.4\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084im:g4084im_g067391909:06739_1909-0012/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1020.0,686.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-82.6832273,38.5322842]}},{"type":"Feature","properties":{"resourceCoords":[541.0,978.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-82.6844396,38.5327554]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084im:g4084im_g067391909:06739_1909-0013/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Ironton, Ohio | 1909 | sanborn06739_006 p13","metadata":[{"label":"streets","value":"8"},{"label":"intersections","value":"17"},{"label":"confidence","value":"0.99"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-19T01:21:49Z","modified":"2026-10-19T01:21:49Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084im:g4084im_g067391909:06739_1909-0013/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084im:g4084im_g067391909:06739_1909-0013","type":"ImageService3","width":1628,"height":1927},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"97.5,1308.3 97.2,800.2 94.8,304.1 90.2,65.8 571.8,69.3 572.0,59.5 1055.0,56.0 1055.0,61.3 1515.7,74.9 1515.4,301.6 1513.3,1817.5 1058.7,1822.1 572.1,1817.0 86.6,1813.8 97.5,1308.3\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084im:g4084im_g067391909:06739_1909-0013/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[571.0,803.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-82.6805332,38.5347186]}},{"type":"Feature","properties":{"resourceCoords":[1514.0,1314.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-82.6803423,38.5327103]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084im:g4084im_g067391909:06739_1909-0014/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Ironton, Ohio | 1909 | sanborn06739_006 p14","metadata":[{"label":"streets","value":"7"},{"label":"intersections","value":"11"},{"label":"confidence","value":"0.94"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-19T01:21:49Z","modified":"2026-10-19T01:21:49Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084im:g4084im_g067391909:06739_1909-0014/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084im:g4084im_g067391909:06739_1909-0014","type":"ImageService3","width":1628,"height":1927},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1581.7,553.5 1561.9,540.4 1566.8,259.6 1506.9,194.2 1542.6,166.2 1524.5,128.4 1347.7,226.6 1272.0,210.9 1110.4,129.9 1094.3,76.2 956.8,36.9 289.7,17.4 234.2,75.3 121.8,1.0 112.1,1.0 97.5,1057.5 107.8,1057.9 108.0,1281.0 108.3,1554.8 99.7,1820.6 99.8,1831.0 580.9,1841.0 581.2,1831.2 1063.8,1834.3 1063.7,1839.5 1523.8,1859.4 1524.0,1852.1 1528.0,1578.0 1534.6,1578.1 1574.6,1075.8 1530.4,1075.0 1539.5,552.9 1581.7,553.5\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084im:g4084im_g067391909:06739_1909-0014/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1064.0,1066.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-82.6768571,38.5355079]}},{"type":"Feature","properties":{"resourceCoords":[1528.0,1578.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-82.6772681,38.5342499]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084im:g4084im_g067391909:06739_1909-0015/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Ironton, Ohio | 1909 | sanborn06739_006 p15","metadata":[{"label":"streets","value":"7"},{"label":"intersections","value":"10"},{"label":"confidence","value":"0.98"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-19T01:21:49Z","modified":"2026-10-19T01:21:49Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084im:g4084im_g067391909:06739_1909-0015/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084im:g4084im_g067391909:06739_1909-0015","type":"ImageService3","width":1628,"height":1927},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"56.1,60.8 286.6,61.1 629.2,52.2 1466.6,60.6 1467.9,536.0 1463.9,1043.0 1464.0,1551.0 1463.3,1805.1 1463.2,1835.2 837.8,1794.7 837.8,1790.5 547.4,1800.0 547.5,1814.1 278.7,1816.5 278.7,1798.1 118.2,1795.0 118.9,1780.6 168.8,1795.4 243.6,1665.0 248.7,1524.1 153.8,1446.6 291.2,1178.1 255.8,103.7 58.9,85.2 56.1,60.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084im:g4084im_g067391909:06739_1909-0015/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[838.0,1046.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-82.6812049,38.5298049]}},{"type":"Feature","properties":{"resourceCoords":[1464.0,1551.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-82.6792771,38.5296369]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084im:g4084im_g067391909:06739_1909-0016/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Ironton, Ohio | 1909 | sanborn06739_006 p16","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.97"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-19T01:21:49Z","modified":"2026-10-19T01:21:49Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084im:g4084im_g067391909:06739_1909-0016/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084im:g4084im_g067391909:06739_1909-0016","type":"ImageService3","width":1628,"height":1927},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"59.3,1638.2 61.3,1127.0 67.5,616.7 68.1,138.3 68.7,17.8 1587.1,21.7 1577.2,1125.8 1579.7,1639.2 1578.8,1908.7 1071.1,1884.3 1071.1,1896.8 564.2,1867.9 564.1,1876.6 57.7,1873.5 59.3,1638.2\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084im:g4084im_g067391909:06739_1909-0016/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[86.0,631.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-82.68052983179437,38.53125159581527]}},{"type":"Feature","properties":{"resourceCoords":[1078.0,1626.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-82.67724038318104,38.53068992559159]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084im:g4084im_g067391909:06739_1909-0017/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Ironton, Ohio | 1909 | sanborn06739_006 p17","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.98"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-19T01:21:49Z","modified":"2026-10-19T01:21:49Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084im:g4084im_g067391909:06739_1909-0017/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084im:g4084im_g067391909:06739_1909-0017","type":"ImageService3","width":1628,"height":1927},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"88.5,1649.3 85.7,1137.5 94.9,36.8 328.6,37.2 602.5,37.7 602.5,44.3 1105.0,77.7 1105.2,33.5 1627.0,35.9 1627.0,65.8 1627.0,78.1 1585.5,142.7 1592.9,1894.3 1099.5,1873.3 1099.5,1868.9 594.4,1869.0 594.4,1865.2 88.0,1880.1 88.5,1649.3\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084im:g4084im_g067391909:06739_1909-0017/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1100.0,610.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-82.67551822240704,38.533850594949165]}},{"type":"Feature","properties":{"resourceCoords":[608.0,610.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-82.67651302205248,38.53335029990807]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084im:g4084im_g067391909:06739_1909-0018__3/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Ironton, Ohio | 1909 | sanborn06739_006 p18 [3]","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.68"},{"label":"confidence_provisional","value":"true"},{"label":"confidence_model","value":"corpus-v2"},{"label":"split_canvas_x","value":"3213.2"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"3298.8"},{"label":"split_canvas_h","value":"7708.0"}],"created":"2026-10-19T01:21:49Z","modified":"2026-10-19T01:21:49Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084im:g4084im_g067391909:06739_1909-0018__3/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084im:g4084im_g067391909:06739_1909-0018","type":"ImageService3","width":1628,"height":1927},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1555.7,28.4 1556.8,1.0 1542.3,1.0 1537.5,77.3 1232.1,51.4 1139.8,139.0 1014.6,144.0 912.4,260.1 845.5,747.8 855.0,1704.0 920.3,1790.4 1357.0,1815.3 1496.2,1881.7 1547.2,1692.0 1550.4,1295.7 1554.2,784.0 1555.7,28.4\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084im:g4084im_g067391909:06739_1909-0018__3/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1547.0,786.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-82.68017263676755,38.525686534480776]}},{"type":"Feature","properties":{"resourceCoords":[1547.0,1805.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-82.67885109703268,38.524109309893056]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084im:g4084im_g067391909:06739_1909-0019/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Ironton, Ohio | 1909 | sanborn06739_006 p19","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.99"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-19T01:21:49Z","modified":"2026-10-19T01:21:49Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084im:g4084im_g067391909:06739_1909-0019/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084im:g4084im_g067391909:06739_1909-0019","type":"ImageService3","width":1628,"height":1927},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1498.2,336.8 1498.2,1136.0 1496.4,1899.2 302.7,1900.5 302.7,1895.5 59.9,1898.9 58.4,1398.3 51.9,653.5 38.4,625.7 53.6,338.9 137.7,247.6 147.3,72.6 308.6,75.9 308.6,94.5 578.7,92.5 578.7,78.3 870.5,69.2 870.5,73.5 1498.9,115.3 1498.2,336.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084im:g4084im_g067391909:06739_1909-0019/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[873.0,1400.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-82.67851235733022,38.52651913089562]}},{"type":"Feature","properties":{"resourceCoords":[1503.0,344.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-82.678605750155,38.52882657564252]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084im:g4084im_g067391909:06739_1909-0002/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Ironton, Ohio | 1909 | sanborn06739_006 p2","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.58"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-19T01:21:49Z","modified":"2026-10-19T01:21:49Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084im:g4084im_g067391909:06739_1909-0002/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084im:g4084im_g067391909:06739_1909-0002","type":"ImageService3","width":1628,"height":1927},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"65.5,138.5 173.9,61.4 335.6,54.8 373.6,119.4 659.9,208.3 1104.0,176.0 1367.2,29.5 1583.8,62.5 1625.3,803.6 1559.7,1876.9 57.5,1849.8 65.5,138.5\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084im:g4084im_g067391909:06739_1909-0002/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[865.0,774.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-82.69583649152409,38.54519431736389]}},{"type":"Feature","properties":{"resourceCoords":[364.0,1872.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-82.69469800348882,38.543165165755795]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084im:g4084im_g067391909:06739_1909-0020/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Ironton, Ohio | 1909 | sanborn06739_006 p20","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.98"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-19T01:21:49Z","modified":"2026-10-19T01:21:49Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084im:g4084im_g067391909:06739_1909-0020/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084im:g4084im_g067391909:06739_1909-0020","type":"ImageService3","width":1628,"height":1927},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"83.2,1135.2 82.2,336.1 82.8,84.3 82.8,63.9 588.5,65.2 588.5,56.5 1094.8,83.5 1094.8,71.1 1601.8,93.6 1602.0,330.8 1602.0,879.8 1599.5,1387.6 1600.5,1895.2 82.2,1898.5 83.2,1135.2\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084im:g4084im_g067391909:06739_1909-0020/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[596.0,886.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-82.67687515621493,38.528482282276975]}},{"type":"Feature","properties":{"resourceCoords":[100.0,886.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-82.6778783167419,38.527980975723644]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084im:g4084im_g067391909:06739_1909-0021/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Ironton, Ohio | 1909 | sanborn06739_006 p21","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.98"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-19T01:21:49Z","modified":"2026-10-19T01:21:49Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084im:g4084im_g067391909:06739_1909-0021/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084im:g4084im_g067391909:06739_1909-0021","type":"ImageService3","width":1628,"height":1927},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"88.2,1394.5 91.5,893.7 92.3,352.1 92.6,80.8 592.9,65.4 592.9,69.1 1092.0,68.3 1092.0,72.7 1579.4,92.8 1589.3,1851.6 1373.9,1898.7 129.2,1883.8 88.5,1895.2 88.2,1394.5\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084im:g4084im_g067391909:06739_1909-0021/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[602.0,888.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-82.67381023011062,38.5300422114356]}},{"type":"Feature","properties":{"resourceCoords":[1092.0,1864.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-82.67152511945507,38.52898148169087]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084im:g4084im_g067391909:06739_1909-0022/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Ironton, Ohio | 1909 | sanborn06739_006 p22","metadata":[{"label":"streets","value":"8"},{"label":"intersections","value":"14"},{"label":"confidence","value":"0.99"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-19T01:21:49Z","modified":"2026-10-19T01:21:49Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084im:g4084im_g067391909:06739_1909-0022/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084im:g4084im_g067391909:06739_1909-0022","type":"ImageService3","width":1628,"height":1927},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"351.4,51.2 351.4,56.3 1540.2,49.3 1540.3,299.2 1543.6,551.5 1543.5,1062.3 1542.8,1829.5 918.4,1787.8 918.5,1820.8 625.8,1823.0 357.7,1825.0 359.6,1901.9 57.2,1866.0 72.3,638.9 65.5,635.7 112.7,448.7 109.7,59.7 109.7,55.9 351.4,51.2\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084im:g4084im_g067391909:06739_1909-0022/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[914.0,556.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-82.6772276,38.5249221]}},{"type":"Feature","properties":{"resourceCoords":[914.0,53.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-82.6778763,38.5257232]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084im:g4084im_g067391909:06739_1909-0023/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Ironton, Ohio | 1909 | sanborn06739_006 p23","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.98"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-19T01:21:49Z","modified":"2026-10-19T01:21:49Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084im:g4084im_g067391909:06739_1909-0023/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084im:g4084im_g067391909:06739_1909-0023","type":"ImageService3","width":1628,"height":1927},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1376.1,1913.5 1063.7,1899.5 1063.7,1904.6 557.6,1899.7 306.3,1897.2 52.9,1894.7 60.4,1045.2 64.6,531.0 63.2,277.1 65.2,25.4 1587.4,28.6 1577.6,69.8 1603.7,1252.2 1524.8,1707.0 1569.2,1864.2 1377.2,1917.6 1376.1,1917.9 1376.1,1913.5\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084im:g4084im_g067391909:06739_1909-0023/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[84.0,1048.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-82.67524199054121,38.52477056291106]}},{"type":"Feature","properties":{"resourceCoords":[1074.0,51.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-82.67454351054181,38.527344519956216]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084im:g4084im_g067391909:06739_1909-0025/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Ironton, Ohio | 1909 | sanborn06739_006 p25","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.88"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-19T01:21:49Z","modified":"2026-10-19T01:21:49Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084im:g4084im_g067391909:06739_1909-0025/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084im:g4084im_g067391909:06739_1909-0025","type":"ImageService3","width":1628,"height":1927},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1626.1,1700.9 1627.0,1617.4 1627.0,224.9 1391.5,223.6 1146.6,222.2 1146.9,147.8 539.8,105.0 539.8,137.1 255.1,138.1 1.0,139.1 1.0,214.6 54.2,221.1 67.1,1653.4 537.1,1654.4 537.5,1703.9 1626.1,1700.9\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084im:g4084im_g067391909:06739_1909-0025/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1138.0,704.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-82.67358169351027,38.5226102613038]}},{"type":"Feature","properties":{"resourceCoords":[552.0,704.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-82.67480546165937,38.521998726387274]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084im:g4084im_g067391909:06739_1909-0026__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Ironton, Ohio | 1909 | sanborn06739_006 p26 [1]","metadata":[{"label":"streets","value":"4"},{"label":"intersections","value":"4"},{"label":"confidence","value":"0.97"},{"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":"3644.4"},{"label":"split_canvas_h","value":"7708.0"}],"created":"2026-10-19T01:21:49Z","modified":"2026-10-19T01:21:49Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084im:g4084im_g067391909:06739_1909-0026__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084im:g4084im_g067391909:06739_1909-0026","type":"ImageService3","width":1628,"height":1927},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"596.0,184.9 596.0,190.0 87.4,188.8 81.0,188.8 79.9,188.8 84.6,1637.2 83.9,1724.1 596.0,1721.0 811.6,1719.8 851.3,1665.4 904.8,756.5 852.3,217.6 910.1,201.0 910.1,196.6 596.0,184.9\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084im:g4084im_g067391909:06739_1909-0026__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[596.1,190.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-82.6721597,38.5244165]}},{"type":"Feature","properties":{"resourceCoords":[596.1,1721.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-82.6702064,38.5220069]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084im:g4084im_g067391909:06739_1909-0026__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Ironton, Ohio | 1909 | sanborn06739_006 p26 [2]","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"8"},{"label":"confidence","value":"0.97"},{"label":"confidence_provisional","value":"true"},{"label":"confidence_model","value":"corpus-v2"},{"label":"split_canvas_x","value":"3644.4"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"2867.6"},{"label":"split_canvas_h","value":"7708.0"}],"created":"2026-10-19T01:21:49Z","modified":"2026-10-19T01:21:49Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084im:g4084im_g067391909:06739_1909-0026__2/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084im:g4084im_g067391909:06739_1909-0026","type":"ImageService3","width":1628,"height":1927},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1431.2,1726.0 1431.6,1797.9 1475.5,1926.0 1480.1,1926.0 1482.8,1926.0 1578.0,1717.7 1586.7,1365.6 1458.2,893.3 1553.1,552.9 1487.1,400.8 1627.0,207.4 1627.0,190.2 1627.0,186.1 1428.0,188.0 918.4,192.9 921.1,1722.0 1001.3,1721.4 1431.2,1726.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084im:g4084im_g067391909:06739_1909-0026__2/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1428.0,1208.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-82.6689067,38.5203903]}},{"type":"Feature","properties":{"resourceCoords":[1428.0,188.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-82.6702064,38.5220069]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084im:g4084im_g067391909:06739_1909-0027/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Ironton, Ohio | 1909 | sanborn06739_006 p27","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.98"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-19T01:21:49Z","modified":"2026-10-19T01:21:49Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084im:g4084im_g067391909:06739_1909-0027/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084im:g4084im_g067391909:06739_1909-0027","type":"ImageService3","width":1628,"height":1927},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"37.2,46.5 514.2,48.5 514.4,98.8 1618.9,98.0 1608.1,1596.2 1609.6,1874.1 1111.7,1860.2 1111.3,1907.0 526.9,1827.9 526.2,1783.7 49.8,1855.6 37.2,46.5\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084im:g4084im_g067391909:06739_1909-0027/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[530.0,1184.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-82.67203856014763,38.51862064588741]}},{"type":"Feature","properties":{"resourceCoords":[1115.0,84.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-82.67228695698267,38.52099343631969]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084im:g4084im_g067391909:06739_1909-0028/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Ironton, Ohio | 1909 | sanborn06739_006 p28","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"9"},{"label":"confidence","value":"0.93"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-19T01:21:49Z","modified":"2026-10-19T01:21:49Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084im:g4084im_g067391909:06739_1909-0028/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084im:g4084im_g067391909:06739_1909-0028","type":"ImageService3","width":1628,"height":1927},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"45.2,1862.7 46.3,810.3 135.5,513.7 132.3,334.8 53.8,233.8 53.5,184.8 532.0,112.5 532.6,156.8 1119.7,236.2 1120.1,189.3 1620.2,203.2 1621.5,426.0 1617.6,928.2 1618.0,1384.3 1615.8,1784.5 1571.9,1873.3 1425.9,1877.6 1424.5,1850.0 556.6,1849.9 556.9,1892.7 9.1,1879.7 45.2,1862.7\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084im:g4084im_g067391909:06739_1909-0028/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1114.0,928.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-82.6689935,38.5169443]}},{"type":"Feature","properties":{"resourceCoords":[1114.0,1850.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-82.6677829,38.5154679]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084im:g4084im_g067391909:06739_1909-0029/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Ironton, Ohio | 1909 | sanborn06739_006 p29","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.88"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-19T01:21:49Z","modified":"2026-10-19T01:21:49Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084im:g4084im_g067391909:06739_1909-0029/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084im:g4084im_g067391909:06739_1909-0029","type":"ImageService3","width":1628,"height":1927},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1610.7,54.7 1575.2,108.0 1607.0,1139.3 1514.2,1753.7 1577.5,1864.3 1510.3,1888.0 1249.5,1868.3 1251.5,1826.8 1042.1,1884.1 52.2,1866.3 57.8,98.2 204.9,31.7 754.9,54.4 755.3,11.4 1627.0,26.8 1627.0,54.5 1610.7,54.7\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084im:g4084im_g067391909:06739_1909-0029/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[756.0,47.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-82.66887468291169,38.51483999032432]}},{"type":"Feature","properties":{"resourceCoords":[1310.0,47.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-82.66775883835447,38.51542190136254]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084im:g4084im_g067391909:06739_1909-0031/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Ironton, Ohio | 1909 | sanborn06739_006 p31","metadata":[{"label":"streets","value":"7"},{"label":"intersections","value":"13"},{"label":"confidence","value":"0.94"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-19T01:21:49Z","modified":"2026-10-19T01:21:49Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084im:g4084im_g067391909:06739_1909-0031/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084im:g4084im_g067391909:06739_1909-0031","type":"ImageService3","width":1628,"height":1927},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"63.4,1871.8 48.4,41.5 1549.0,49.8 1608.2,201.9 1574.1,1877.9 137.1,1893.2 63.4,1871.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084im:g4084im_g067391909:06739_1909-0031/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1060.0,891.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-82.6618777,38.5100024]}},{"type":"Feature","properties":{"resourceCoords":[1570.0,1580.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-82.659995,38.5094492]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084im:g4084im_g067391909:06739_1909-0032__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Ironton, Ohio | 1909 | sanborn06739_006 p32 [1]","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"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":"0.0"},{"label":"split_canvas_w","value":"3018.8"},{"label":"split_canvas_h","value":"7708.0"}],"created":"2026-10-19T01:21:49Z","modified":"2026-10-19T01:21:49Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084im:g4084im_g067391909:06739_1909-0032__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084im:g4084im_g067391909:06739_1909-0032","type":"ImageService3","width":1628,"height":1927},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"103.4,1800.0 165.9,1871.1 538.1,1863.1 645.1,1781.9 716.0,1613.2 689.3,739.7 597.6,609.9 564.1,279.0 598.5,201.4 551.8,69.4 550.6,1.0 78.3,1.0 58.3,1.4 70.7,493.5 76.5,986.2 85.7,1433.5 91.2,1826.0 103.4,1800.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084im:g4084im_g067391909:06739_1909-0032__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[575.8,494.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-82.66754620627856,38.518781703483974]}},{"type":"Feature","properties":{"resourceCoords":[96.0,1858.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-82.66679026179024,38.51604043879992]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084im:g4084im_g067391909:06739_1909-0037__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Ironton, Ohio | 1909 | sanborn06739_006 p37 [1]","metadata":[{"label":"streets","value":"2"},{"label":"intersections","value":"1"},{"label":"confidence","value":"0.49"},{"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":"2856.0"},{"label":"split_canvas_h","value":"3296.4"}],"created":"2026-10-19T01:21:49Z","modified":"2026-10-19T01:21:49Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084im:g4084im_g067391909:06739_1909-0037__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084im:g4084im_g067391909:06739_1909-0037","type":"ImageService3","width":1628,"height":1927},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"29.1,19.9 27.0,795.9 680.6,783.1 696.5,134.5 621.5,60.1 669.7,29.1 29.1,19.9\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084im:g4084im_g067391909:06739_1909-0037__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":[-82.6467395267393,38.49647101806015]}},{"type":"Feature","properties":{"resourceCoords":[714.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-82.6450091208629,38.496400370811656]}},{"type":"Feature","properties":{"resourceCoords":[714.0,824.1],"type":"corner"},"geometry":{"type":"Point","coordinates":[-82.64511337843143,38.49483868508531]}},{"type":"Feature","properties":{"resourceCoords":[0.0,824.1],"type":"corner"},"geometry":{"type":"Point","coordinates":[-82.64684378430783,38.494909332333805]}},{"type":"Feature","properties":{"resourceCoords":[541.0,234.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-82.645458,38.495974]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084im:g4084im_g067391909:06739_1909-0004__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Ironton, Ohio | 1909 | sanborn06739_006 p4 [1]","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.87"},{"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":"6512.0"},{"label":"split_canvas_h","value":"7708.0"}],"created":"2026-10-19T01:21:49Z","modified":"2026-10-19T01:21:49Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084im:g4084im_g067391909:06739_1909-0004__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084im:g4084im_g067391909:06739_1909-0004","type":"ImageService3","width":1628,"height":1927},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"333.1,1862.2 580.2,1866.2 829.4,1864.3 942.4,1868.1 1212.0,1869.0 1340.0,1864.0 1607.3,1802.5 1512.3,1755.5 1573.2,1318.0 1481.4,1179.9 1447.7,767.4 1503.4,682.3 1413.9,328.7 1487.3,203.2 1285.0,88.2 586.1,55.9 553.4,728.7 495.2,740.1 494.6,764.8 386.2,761.6 105.2,817.1 134.7,984.0 62.5,1014.8 45.6,1159.9 69.1,1322.8 129.0,1257.8 149.8,1583.9 59.3,1745.5 332.5,1883.7 333.1,1862.2\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084im:g4084im_g067391909:06739_1909-0004__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1323.0,864.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-82.68837180536603,38.544195247865176]}},{"type":"Feature","properties":{"resourceCoords":[1323.0,1848.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-82.6870916254762,38.54266554893094]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084im:g4084im_g067391909:06739_1909-0005/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Ironton, Ohio | 1909 | sanborn06739_006 p5","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"5"},{"label":"confidence","value":"0.57"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-19T01:21:49Z","modified":"2026-10-19T01:21:49Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084im:g4084im_g067391909:06739_1909-0005/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084im:g4084im_g067391909:06739_1909-0005","type":"ImageService3","width":1628,"height":1927},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"169.9,87.0 421.9,87.8 1543.2,57.2 1543.2,58.2 1543.1,66.9 1546.6,442.8 1561.1,966.7 1567.5,966.6 1611.3,1347.2 1592.8,1372.4 1551.3,1886.8 1340.6,1824.0 787.4,1899.8 49.5,1870.7 65.3,369.0 43.0,357.3 169.9,87.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084im:g4084im_g067391909:06739_1909-0005/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[622.0,87.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-82.688438,38.540868]}},{"type":"Feature","properties":{"resourceCoords":[149.0,87.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-82.6890405,38.5416362]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084im:g4084im_g067391909:06739_1909-0006/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Ironton, Ohio | 1909 | sanborn06739_006 p6","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.85"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-19T01:21:49Z","modified":"2026-10-19T01:21:49Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084im:g4084im_g067391909:06739_1909-0006/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084im:g4084im_g067391909:06739_1909-0006","type":"ImageService3","width":1628,"height":1927},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1511.6,1449.4 1519.6,1144.9 1514.2,621.1 1517.2,448.8 1539.3,449.1 1488.0,1.0 1468.9,1.0 1453.5,53.8 63.5,40.9 87.1,612.2 54.1,679.2 114.3,939.0 119.5,1063.4 119.1,1325.5 115.7,1435.4 118.0,1677.6 114.6,1917.8 386.2,1926.0 1504.9,1926.0 1511.4,1752.6 1511.6,1449.4\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084im:g4084im_g067391909:06739_1909-0006/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[576.0,964.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-82.68647243869314,38.5418926098035]}},{"type":"Feature","properties":{"resourceCoords":[1530.0,1432.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-82.68615790531467,38.53987667361605]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084im:g4084im_g067391909:06739_1909-0007/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Ironton, Ohio | 1909 | sanborn06739_006 p7","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.80"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-19T01:21:49Z","modified":"2026-10-19T01:21:49Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084im:g4084im_g067391909:06739_1909-0007/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084im:g4084im_g067391909:06739_1909-0007","type":"ImageService3","width":1628,"height":1927},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1608.5,1491.0 1622.2,1491.0 1613.4,1805.0 1584.0,1796.5 1529.8,1881.8 1142.5,1832.0 833.2,1874.7 673.2,1790.0 120.0,1839.9 86.7,1883.7 48.5,1495.2 42.0,1495.2 35.8,961.0 38.6,578.0 43.6,390.9 40.4,81.0 1057.3,75.2 1572.1,78.6 1580.3,316.3 1584.7,579.1 1580.8,900.6 1611.8,963.6 1627.0,1014.4 1627.0,1145.8 1617.5,1203.8 1608.5,1491.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084im:g4084im_g067391909:06739_1909-0007/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1066.0,1509.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-82.68778241994615,38.536836789988996]}},{"type":"Feature","properties":{"resourceCoords":[1557.0,1509.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-82.68715244590058,38.53606215577469]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084im:g4084im_g067391909:06739_1909-0008/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Ironton, Ohio | 1909 | sanborn06739_006 p8","metadata":[{"label":"streets","value":"8"},{"label":"intersections","value":"20"},{"label":"confidence","value":"0.95"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-19T01:21:49Z","modified":"2026-10-19T01:21:49Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084im:g4084im_g067391909:06739_1909-0008/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084im:g4084im_g067391909:06739_1909-0008","type":"ImageService3","width":1628,"height":1927},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"35.7,371.1 93.5,165.7 281.7,67.7 1288.5,57.0 1288.3,112.4 1601.5,106.9 1603.8,384.4 1627.0,384.6 1627.0,480.4 1627.0,863.9 1588.5,863.7 1577.4,1358.8 1580.5,1867.8 1076.0,1864.0 79.6,1868.5 84.5,1563.5 74.0,1039.0 75.3,866.3 97.5,866.4 35.7,371.1\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084im:g4084im_g067391909:06739_1909-0008/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[569.0,868.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-82.683518,38.540127]}},{"type":"Feature","properties":{"resourceCoords":[1076.0,1864.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-82.6849018,38.5382895]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084im:g4084im_g067391909:06739_1909-0009/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Ironton, Ohio | 1909 | sanborn06739_006 p9","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.95"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-19T01:21:49Z","modified":"2026-10-19T01:21:49Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084im:g4084im_g067391909:06739_1909-0009/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084im:g4084im_g067391909:06739_1909-0009","type":"ImageService3","width":1628,"height":1927},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1578.3,1906.2 1387.2,1859.2 1026.5,1889.8 771.5,1809.8 260.0,1836.5 46.0,1773.0 57.3,1461.7 43.7,1461.6 54.9,1176.9 64.8,1119.4 65.9,989.4 51.2,938.7 21.0,876.1 27.4,557.3 25.2,296.7 18.9,61.0 148.2,63.1 317.2,55.0 463.5,54.3 1043.5,66.8 1105.9,64.2 1609.5,63.1 1596.7,566.3 1593.8,1162.8 1593.6,1483.6 1589.7,1728.0 1578.3,1906.2\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084im:g4084im_g067391909:06739_1909-0009/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1086.0,1192.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-82.68513856536622,38.53462538502692]}},{"type":"Feature","properties":{"resourceCoords":[1086.0,62.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-82.68285175773163,38.53578371749195]}}]}}]}