{"id":"https://data.mapsnap.org/runs/v2.0/iiif/chronoscope/sanborn02619_003.main.iiif.json","type":"AnnotationPage","@context":["http://www.w3.org/ns/anno.jsonld"],"label":"Council Bluffs, Iowa | 1896 | 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":"81"},{"label":"placed","value":"56"},{"label":"unplaced","value":"25"},{"label":"fit sources","value":"georef-snap 29, georef 26, snap:0 1"},{"label":"key map","value":"georeferenced"},{"label":"split sheets","value":"15 sheet(s) cut into 52 panels"},{"label":"unplaced pages","value":"p36 (tier 1, 41.26287,-95.87591 +/-281m); p37__2 (tier 1, 41.25414,-95.86951 +/-100m); p38__1 (tier 1, 41.26193,-95.87935 +/-122m); p38__5 (tier 1, 41.26006,-95.88863 +/-126m); p38__6 (tier 1, 41.26182,-95.89989 +/-118m); p39__1 (tier 1, 41.26270,-95.88624 +/-100m); p39__3 (tier 1, 41.26307,-95.88702 +/-100m); p40__1 (tier 1, 41.26678,-95.85726 +/-188m); p40__2 (tier 2, 41.26731,-95.85047 +/-1085m); p40__3 (tier 1, 41.26743,-95.85742 +/-211m); p40__4 (tier 2, 41.26731,-95.85047 +/-1085m); p41__2 (tier 1, 41.25683,-95.83637 +/-100m); p41__3 (tier 1, 41.26784,-95.83766 +/-100m); p43__1 (tier 1, 41.24101,-95.84413 +/-108m); p43__2 (tier 3, 41.24111,-95.84374 +/-628m); p44__1 (tier 1, 41.27280,-95.87001 +/-234m); p44__2 (tier 1, 41.27206,-95.86820 +/-144m); p44__3 (tier 1, 41.25865,-95.84650 +/-100m); p44__4 (tier 1, 41.25702,-95.84338 +/-100m); p45__1 (tier 1, 41.25289,-95.86120 +/-125m); p45__4 (tier 1, 41.25967,-95.87497 +/-100m); p45__6 (tier 1, 41.26311,-95.89468 +/-111m); p4__2 (tier 1, 41.26572,-95.84342 +/-136m); p4__3 (tier 2, 41.26553,-95.84177 +/-366m); p8__2 (tier 1, 41.26681,-95.85113 +/-100m)"}],"items":[{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154cm:g026191896:02619_1896-0010/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Council Bluffs, Iowa | 1896 | sanborn02619_003 p10","metadata":[{"label":"streets","value":"8"},{"label":"intersections","value":"14"},{"label":"confidence","value":"0.99"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T21:21:10Z","modified":"2026-10-18T21:21:10Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154cm:g026191896:02619_1896-0010/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154cm:g026191896:02619_1896-0010","type":"ImageService3","width":1680,"height":1979},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1567.5,1847.7 910.6,1849.5 425.8,1852.6 149.0,1851.0 148.5,1375.7 150.5,1189.6 148.7,715.6 132.6,601.9 117.4,551.8 74.0,475.2 39.1,436.3 4.3,401.3 325.0,55.8 399.9,55.4 412.8,85.9 711.1,30.2 1516.7,48.5 1517.0,44.7 1566.2,44.0 1566.6,466.3 1569.1,1141.8 1567.5,1847.7\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154cm:g026191896:02619_1896-0010/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[866.0,896.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-95.850092,41.259599]}},{"type":"Feature","properties":{"resourceCoords":[149.0,1851.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-95.851997,41.261239]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154cm:g026191896:02619_1896-0011/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Council Bluffs, Iowa | 1896 | sanborn02619_003 p11","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.99"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T21:21:10Z","modified":"2026-10-18T21:21:10Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154cm:g026191896:02619_1896-0011/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154cm:g026191896:02619_1896-0011","type":"ImageService3","width":1680,"height":1979},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1547.0,1499.9 1410.3,1505.0 1421.8,1603.7 1210.5,1642.6 639.6,1757.5 523.9,1768.8 121.9,1770.5 120.7,1086.6 121.2,659.1 71.5,659.7 113.8,210.7 309.5,85.4 827.1,145.1 1124.6,67.3 1510.7,192.9 1518.0,191.1 1525.0,224.8 1550.5,224.7 1549.8,866.9 1546.5,1084.5 1547.3,1467.0 1554.2,1499.8 1547.0,1499.9\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154cm:g026191896:02619_1896-0011/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[835.0,645.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-95.84874114656644,41.256764627090355]}},{"type":"Feature","properties":{"resourceCoords":[835.0,215.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-95.84773297489649,41.256605523162555]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154cm:g026191896:02619_1896-0012/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Council Bluffs, Iowa | 1896 | sanborn02619_003 p12","metadata":[{"label":"streets","value":"7"},{"label":"intersections","value":"10"},{"label":"confidence","value":"0.99"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T21:21:10Z","modified":"2026-10-18T21:21:10Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154cm:g026191896:02619_1896-0012/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154cm:g026191896:02619_1896-0012","type":"ImageService3","width":1680,"height":1979},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"856.0,1846.0 140.4,1860.0 140.5,1327.0 136.0,832.0 138.2,425.8 126.7,163.6 135.1,26.8 142.9,62.7 835.6,96.8 846.2,22.3 856.4,22.4 861.8,22.4 862.2,26.6 865.6,76.5 1556.7,103.9 1556.6,106.8 1564.6,330.2 1469.8,829.2 1427.7,1039.0 1422.2,1106.5 1424.8,1845.6 856.0,1846.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154cm:g026191896:02619_1896-0012/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[136.0,832.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-95.8547576,41.2542886]}},{"type":"Feature","properties":{"resourceCoords":[856.0,1846.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-95.8530442,41.2524379]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154cm:g026191896:02619_1896-0013/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Council Bluffs, Iowa | 1896 | sanborn02619_003 p13","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.98"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T21:21:10Z","modified":"2026-10-18T21:21:10Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154cm:g026191896:02619_1896-0013/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154cm:g026191896:02619_1896-0013","type":"ImageService3","width":1680,"height":1979},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1361.4,1885.1 1361.7,1866.7 502.3,1861.1 502.0,1882.5 78.7,1878.4 83.0,1142.7 89.1,1075.5 133.0,867.0 232.2,371.2 254.1,314.9 281.9,191.0 225.9,190.7 226.1,172.0 285.6,172.2 288.2,158.3 315.4,20.2 348.6,20.3 719.0,97.2 928.8,144.7 1550.2,275.8 1555.2,251.2 1589.3,251.2 1640.7,1621.4 1618.5,1880.7 1610.1,1889.0 1361.4,1885.1\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154cm:g026191896:02619_1896-0013/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[579.0,785.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-95.8504605733618,41.254420495574]}},{"type":"Feature","properties":{"resourceCoords":[168.0,685.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-95.85145629603787,41.25460256375976]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154cm:g026191896:02619_1896-0014/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Council Bluffs, Iowa | 1896 | sanborn02619_003 p14","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"8"},{"label":"confidence","value":"0.98"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T21:21:10Z","modified":"2026-10-18T21:21:10Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154cm:g026191896:02619_1896-0014/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154cm:g026191896:02619_1896-0014","type":"ImageService3","width":1680,"height":1979},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"40.5,703.2 15.2,697.7 15.5,291.3 11.7,229.3 45.2,229.2 300.5,228.1 1014.5,215.6 1581.9,216.3 1580.5,1228.7 1580.5,1792.6 1015.0,1795.0 1014.8,1810.8 685.3,1800.8 685.5,1959.0 663.8,1959.0 630.0,1959.0 630.2,1791.1 301.4,1853.2 301.6,1867.2 129.8,1858.5 135.1,1961.3 73.8,1962.5 46.6,1286.6 75.8,1286.5 40.5,703.2\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154cm:g026191896:02619_1896-0014/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1015.0,1229.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-95.853061,41.250596]}},{"type":"Feature","properties":{"resourceCoords":[1015.0,1795.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-95.8530711,41.2495673]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154cm:g026191896:02619_1896-0015/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Council Bluffs, Iowa | 1896 | sanborn02619_003 p15","metadata":[{"label":"streets","value":"5"},{"label":"intersections","value":"5"},{"label":"confidence","value":"0.85"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T21:21:10Z","modified":"2026-10-18T21:21:10Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154cm:g026191896:02619_1896-0015/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154cm:g026191896:02619_1896-0015","type":"ImageService3","width":1680,"height":1979},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1389.6,1757.6 1389.6,1812.5 119.8,1844.8 119.2,1774.5 113.2,1211.1 103.8,199.6 527.7,195.9 527.6,174.6 1388.0,164.6 1388.0,183.0 1637.1,182.4 1587.1,234.3 1622.4,1755.7 1389.6,1757.6\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154cm:g026191896:02619_1896-0015/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[526.0,700.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-95.850673,41.251505]}},{"type":"Feature","properties":{"resourceCoords":[1388.0,183.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-95.848565,41.252417]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154cm:g026191896:02619_1896-0016/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Council Bluffs, Iowa | 1896 | sanborn02619_003 p16","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"8"},{"label":"confidence","value":"0.97"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T21:21:10Z","modified":"2026-10-18T21:21:10Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154cm:g026191896:02619_1896-0016/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154cm:g026191896:02619_1896-0016","type":"ImageService3","width":1680,"height":1979},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"78.6,1452.0 3.0,1153.4 39.5,1153.7 30.3,651.4 42.4,611.8 93.7,612.1 71.7,257.1 26.9,240.4 89.2,239.1 83.6,134.7 258.2,143.2 257.9,129.0 591.9,65.5 591.9,236.1 648.3,236.0 647.9,75.3 982.7,85.0 982.8,68.9 1557.3,65.7 1556.2,608.4 1557.1,1714.0 1576.0,1714.1 1571.6,1943.4 319.3,1938.2 317.1,1959.0 313.0,1959.0 312.0,1965.0 294.0,1965.0 293.0,1959.0 276.0,1959.0 275.0,1965.0 274.6,1965.0 269.7,1963.3 269.0,1959.0 257.3,1959.0 256.9,1714.8 145.2,1714.9 113.7,1590.4 79.6,1590.5 78.6,1452.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154cm:g026191896:02619_1896-0016/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[983.0,609.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-95.853082,41.248601]}},{"type":"Feature","properties":{"resourceCoords":[983.0,1718.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-95.8531052,41.2466169]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154cm:g026191896:02619_1896-0017/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Council Bluffs, Iowa | 1896 | sanborn02619_003 p17","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.85"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T21:21:10Z","modified":"2026-10-18T21:21:10Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154cm:g026191896:02619_1896-0017/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154cm:g026191896:02619_1896-0017","type":"ImageService3","width":1680,"height":1979},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"105.1,1692.2 86.1,1692.1 84.5,580.8 85.1,107.2 1383.2,85.2 1383.7,29.2 1621.6,29.2 1642.0,1429.5 1662.8,1429.3 1663.0,1681.0 1663.0,1690.9 1411.0,1691.3 1447.9,1775.0 1211.5,1961.4 1200.3,1961.4 1192.0,1926.4 100.8,1922.6 105.1,1692.2\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154cm:g026191896:02619_1896-0017/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1387.0,1141.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-95.84864700431186,41.247573956464976]}},{"type":"Feature","properties":{"resourceCoords":[87.0,591.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-95.85171223554568,41.24857480269273]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154cm:g026191896:02619_1896-0018/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Council Bluffs, Iowa | 1896 | sanborn02619_003 p18","metadata":[{"label":"streets","value":"7"},{"label":"intersections","value":"13"},{"label":"confidence","value":"0.99"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T21:21:10Z","modified":"2026-10-18T21:21:10Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154cm:g026191896:02619_1896-0018/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154cm:g026191896:02619_1896-0018","type":"ImageService3","width":1680,"height":1979},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1340.1,1805.8 557.9,1960.0 546.0,1960.0 545.7,1962.4 513.5,1968.8 390.9,1967.2 390.0,1960.0 374.0,1960.0 373.0,1967.0 293.0,1966.0 292.0,1961.0 274.0,1961.0 273.0,1966.0 236.0,1966.0 235.0,1978.0 229.0,1978.0 228.0,1961.0 77.4,1962.4 47.8,1814.4 41.6,1768.8 40.4,1470.6 41.4,562.4 45.3,88.2 402.2,79.4 1347.4,78.0 1543.8,74.5 1540.2,369.3 1553.5,501.6 1565.4,861.1 1564.0,1301.3 1546.6,1633.9 1575.2,1760.8 1340.1,1805.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154cm:g026191896:02619_1896-0018/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[837.0,773.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-95.853312,41.262771]}},{"type":"Feature","properties":{"resourceCoords":[837.0,79.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-95.851654,41.26251]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154cm:g026191896:02619_1896-0019/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Council Bluffs, Iowa | 1896 | sanborn02619_003 p19","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.99"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T21:21:10Z","modified":"2026-10-18T21:21:10Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154cm:g026191896:02619_1896-0019/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154cm:g026191896:02619_1896-0019","type":"ImageService3","width":1680,"height":1979},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1539.8,781.6 1527.4,1192.2 1543.0,1296.1 1581.2,1491.8 1316.8,1545.0 826.1,1647.3 422.9,1723.7 211.7,1766.8 145.7,1780.4 117.3,1651.8 136.4,1315.4 139.6,869.9 129.0,505.9 116.2,372.0 121.0,73.8 399.3,77.2 886.9,77.5 1547.4,80.0 1539.8,781.6\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154cm:g026191896:02619_1896-0019/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[839.0,1638.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-95.85604078645288,41.26053359646054]}},{"type":"Feature","properties":{"resourceCoords":[839.0,85.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-95.8523714174123,41.259967912578695]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154cm:g026191896:02619_1896-0002/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Council Bluffs, Iowa | 1896 | sanborn02619_003 p2","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.95"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T21:21:10Z","modified":"2026-10-18T21:21:10Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154cm:g026191896:02619_1896-0002/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154cm:g026191896:02619_1896-0002","type":"ImageService3","width":1675,"height":1979},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1535.2,955.3 1515.4,1911.5 1254.0,1820.2 1051.4,1755.1 806.5,1669.9 763.5,1967.0 748.8,1964.9 748.0,1959.0 730.0,1959.0 729.6,1962.2 720.2,1960.9 720.0,1959.0 701.0,1958.2 745.5,1649.0 10.1,1397.2 9.8,1352.9 54.0,1300.2 49.6,343.9 105.8,80.0 599.8,47.4 872.0,198.1 1206.0,89.6 1278.3,19.0 1334.6,19.0 1357.1,98.4 1387.8,91.0 1404.4,248.1 1433.7,375.5 1532.5,882.1 1535.2,955.3\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154cm:g026191896:02619_1896-0002/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[400.0,329.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-95.84136039502089,41.26746952821743]}},{"type":"Feature","properties":{"resourceCoords":[1541.0,1922.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-95.84253360462712,41.26403129906525]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154cm:g026191896:02619_1896-0020/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Council Bluffs, Iowa | 1896 | sanborn02619_003 p20","metadata":[{"label":"streets","value":"8"},{"label":"intersections","value":"12"},{"label":"confidence","value":"0.99"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T21:21:10Z","modified":"2026-10-18T21:21:10Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154cm:g026191896:02619_1896-0020/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154cm:g026191896:02619_1896-0020","type":"ImageService3","width":1680,"height":1979},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"307.6,1823.7 58.8,1822.4 63.3,1320.0 59.7,1320.0 66.2,875.7 64.3,875.6 83.3,399.9 905.2,390.5 904.9,146.6 1104.6,147.6 1209.7,152.7 1610.3,245.7 1477.1,914.6 1464.4,1057.8 1462.7,1827.5 307.6,1823.7\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154cm:g026191896:02619_1896-0020/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[906.0,880.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-95.85606,41.257834]}},{"type":"Feature","properties":{"resourceCoords":[906.0,1825.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-95.8560698,41.2561229]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154cm:g026191896:02619_1896-0021/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Council Bluffs, Iowa | 1896 | sanborn02619_003 p21","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"9"},{"label":"confidence","value":"0.99"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T21:21:10Z","modified":"2026-10-18T21:21:10Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154cm:g026191896:02619_1896-0021/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154cm:g026191896:02619_1896-0021","type":"ImageService3","width":1680,"height":1979},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"108.3,1887.2 100.7,1851.3 104.8,1649.9 105.7,881.9 118.2,739.0 250.4,71.6 936.3,216.2 1630.4,361.1 1552.2,752.4 1540.2,867.1 1538.5,1445.0 1534.4,1658.0 1632.7,1666.6 1610.4,1800.5 1582.6,1946.2 1580.0,1960.1 1520.3,1960.2 1520.3,1937.0 1520.5,1934.0 830.2,1903.8 827.0,1854.0 811.1,1849.6 800.2,1924.0 108.3,1887.2\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154cm:g026191896:02619_1896-0021/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[105.0,1149.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-95.854722,41.257023]}},{"type":"Feature","properties":{"resourceCoords":[1539.0,1149.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-95.85126,41.257009]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154cm:g026191896:02619_1896-0022__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Council Bluffs, Iowa | 1896 | sanborn02619_003 p22 [1]","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.33"},{"label":"confidence_provisional","value":"true"},{"label":"confidence_model","value":"corpus-v2"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"5084.0"},{"label":"split_canvas_w","value":"1280.0"},{"label":"split_canvas_h","value":"2832.0"}],"created":"2026-10-18T21:21:10Z","modified":"2026-10-18T21:21:10Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154cm:g026191896:02619_1896-0022__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154cm:g026191896:02619_1896-0022","type":"ImageService3","width":1680,"height":1979},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"274.5,1362.1 175.5,1328.7 122.0,1329.3 45.4,1358.3 38.1,1834.6 283.2,1912.5 290.1,1413.9 274.5,1362.1\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154cm:g026191896:02619_1896-0022__1/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,1271.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-95.85727609350438,41.26754652600807]}},{"type":"Feature","properties":{"resourceCoords":[320.0,1271.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-95.85728837394014,41.26696234539781]}},{"type":"Feature","properties":{"resourceCoords":[320.0,1979.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-95.85899585484594,41.26698291242955]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1979.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-95.85898357441019,41.26756709303981]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154cm:g026191896:02619_1896-0022__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Council Bluffs, Iowa | 1896 | sanborn02619_003 p22 [2]","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.99"},{"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":"6720.0"},{"label":"split_canvas_h","value":"7916.0"}],"created":"2026-10-18T21:21:10Z","modified":"2026-10-18T21:21:10Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154cm:g026191896:02619_1896-0022__2/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154cm:g026191896:02619_1896-0022","type":"ImageService3","width":1680,"height":1979},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1436.2,647.6 1432.4,471.2 1435.5,424.3 1495.2,125.7 1176.5,59.1 1109.1,51.5 816.5,90.1 696.3,96.1 371.7,25.6 372.0,79.3 139.4,118.0 132.8,305.7 72.8,313.5 70.0,1267.0 300.8,1368.9 320.0,1375.2 320.0,1377.4 355.9,1393.3 395.8,1866.1 628.9,1932.5 1477.3,1898.3 1478.0,1926.0 1508.6,1926.1 1509.5,1323.6 1512.7,719.0 1450.5,718.9 1451.2,668.0 1436.2,647.6\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154cm:g026191896:02619_1896-0022__2/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1515.0,716.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-95.85599102579373,41.26443373245261]}},{"type":"Feature","properties":{"resourceCoords":[1515.0,1903.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-95.85882788712922,41.26444424763414]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154cm:g026191896:02619_1896-0023/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Council Bluffs, Iowa | 1896 | sanborn02619_003 p23","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.90"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T21:21:10Z","modified":"2026-10-18T21:21:10Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154cm:g026191896:02619_1896-0023/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154cm:g026191896:02619_1896-0023","type":"ImageService3","width":1680,"height":1979},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1530.3,1862.5 1530.2,1842.2 1470.2,1836.4 1470.5,1865.3 561.6,1855.3 561.2,1883.2 472.6,1876.8 170.1,1875.8 26.9,1871.4 78.4,1842.8 55.0,1262.3 85.0,1262.0 79.3,666.9 75.8,69.7 14.9,70.3 15.0,20.0 124.3,20.2 141.6,22.5 147.5,23.7 206.8,22.9 423.2,67.8 1267.2,64.3 1507.0,64.7 1548.1,64.0 1566.2,1254.5 1546.3,1255.1 1555.3,1861.8 1543.1,1862.1 1530.3,1862.5\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154cm:g026191896:02619_1896-0023/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-95.85582663272424,41.2645747555061]}},{"type":"Feature","properties":{"resourceCoords":[1680.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-95.85589147189533,41.26149817744445]}},{"type":"Feature","properties":{"resourceCoords":[1680.0,1979.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-95.86067901691172,41.26155599577497]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1979.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-95.86061417774062,41.26463257383662]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154cm:g026191896:02619_1896-0024/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Council Bluffs, Iowa | 1896 | sanborn02619_003 p24","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.86"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T21:21:10Z","modified":"2026-10-18T21:21:10Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154cm:g026191896:02619_1896-0024/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154cm:g026191896:02619_1896-0024","type":"ImageService3","width":1680,"height":1979},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1403.6,1873.4 1097.5,1871.4 12.1,1880.2 12.3,1286.5 32.0,1286.3 32.3,121.5 57.5,121.5 267.6,121.5 667.9,127.4 1156.7,125.5 1419.7,126.3 1657.3,127.0 1660.3,1291.9 1655.8,1875.0 1403.6,1873.4\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154cm:g026191896:02619_1896-0024/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1136.0,1293.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-95.85894007296416,41.25969067032994]}},{"type":"Feature","properties":{"resourceCoords":[1136.0,1890.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-95.86041657441656,41.25969125444959]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154cm:g026191896:02619_1896-0025/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Council Bluffs, Iowa | 1896 | sanborn02619_003 p25","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.98"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T21:21:10Z","modified":"2026-10-18T21:21:10Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154cm:g026191896:02619_1896-0025/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154cm:g026191896:02619_1896-0025","type":"ImageService3","width":1680,"height":1979},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"72.4,1030.3 118.3,1030.1 117.0,426.6 116.6,49.3 596.2,65.5 596.3,63.6 1044.2,67.5 1044.2,63.8 1550.7,65.3 1551.1,417.1 1658.2,416.4 1658.2,452.4 1584.4,450.5 1569.7,1922.6 1088.5,1867.5 856.1,1915.0 412.6,1874.6 315.6,1935.7 97.2,1877.9 80.3,1333.2 72.4,1030.3\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154cm:g026191896:02619_1896-0025/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[118.0,1011.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-95.86033431188301,41.258725195235805]}},{"type":"Feature","properties":{"resourceCoords":[118.0,411.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-95.85890071341196,41.2587139647572]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154cm:g026191896:02619_1896-0026/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Council Bluffs, Iowa | 1896 | sanborn02619_003 p26","metadata":[{"label":"streets","value":"7"},{"label":"intersections","value":"12"},{"label":"confidence","value":"0.99"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T21:21:10Z","modified":"2026-10-18T21:21:10Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154cm:g026191896:02619_1896-0026/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154cm:g026191896:02619_1896-0026","type":"ImageService3","width":1680,"height":1979},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1572.8,1949.0 196.2,1909.6 196.2,1873.7 89.0,1874.0 90.0,1271.0 90.0,106.0 293.6,109.7 431.7,118.4 696.6,107.3 1106.8,110.2 1606.8,106.5 1607.3,1265.7 1606.9,1901.4 1572.8,1949.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154cm:g026191896:02619_1896-0026/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[90.0,1271.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-95.857511,41.25613]}},{"type":"Feature","properties":{"resourceCoords":[90.0,106.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-95.854729,41.256114]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154cm:g026191896:02619_1896-0027__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Council Bluffs, Iowa | 1896 | sanborn02619_003 p27 [1]","metadata":[{"label":"streets","value":"5"},{"label":"intersections","value":"3"},{"label":"confidence","value":"0.58"},{"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":"6752.0"},{"label":"split_canvas_h","value":"7916.0"}],"created":"2026-10-18T21:21:10Z","modified":"2026-10-18T21:21:10Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154cm:g026191896:02619_1896-0027__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154cm:g026191896:02619_1896-0027","type":"ImageService3","width":1688,"height":1979},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"27.9,1903.2 53.7,1867.1 596.2,1916.2 1084.5,1874.2 1589.0,1938.9 1640.6,1701.7 1614.5,342.7 1663.2,340.7 1663.1,310.6 1063.0,347.4 1057.4,373.3 639.0,373.3 575.6,377.2 574.1,80.1 27.2,79.2 28.1,1257.2 27.9,1903.2\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154cm:g026191896:02619_1896-0027__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1603.0,1248.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-95.857534,41.2506235]}},{"type":"Feature","properties":{"resourceCoords":[1603.0,79.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-95.854787,41.250607]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154cm:g026191896:02619_1896-0027__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Council Bluffs, Iowa | 1896 | sanborn02619_003 p27 [2]","metadata":[{"label":"streets","value":"2"},{"label":"intersections","value":"1"},{"label":"confidence","value":"0.85"},{"label":"confidence_provisional","value":"true"},{"label":"confidence_model","value":"corpus-v2"},{"label":"split_canvas_x","value":"2532.0"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"2023.2"},{"label":"split_canvas_h","value":"1493.2"}],"created":"2026-10-18T21:21:10Z","modified":"2026-10-18T21:21:10Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154cm:g026191896:02619_1896-0027__2/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154cm:g026191896:02619_1896-0027","type":"ImageService3","width":1688,"height":1979},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"644.8,125.8 646.1,371.8 661.0,371.7 675.9,364.2 794.5,251.7 831.6,214.2 831.5,206.8 816.5,191.9 659.3,66.0 651.9,66.1 644.8,125.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154cm:g026191896:02619_1896-0027__2/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[633.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-95.85655307478675,41.25053007423444]}},{"type":"Feature","properties":{"resourceCoords":[1138.8,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-95.85654618566598,41.251445491723665]}},{"type":"Feature","properties":{"resourceCoords":[1138.8,373.3],"type":"corner"},"geometry":{"type":"Point","coordinates":[-95.85564775178928,41.25144167743537]}},{"type":"Feature","properties":{"resourceCoords":[633.0,373.3],"type":"corner"},"geometry":{"type":"Point","coordinates":[-95.85565464091005,41.25052625994615]}},{"type":"Feature","properties":{"resourceCoords":[681.0,187.2],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-95.856102,41.250615]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154cm:g026191896:02619_1896-0028__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Council Bluffs, Iowa | 1896 | sanborn02619_003 p28 [1]","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"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":"6752.0"},{"label":"split_canvas_h","value":"7916.0"}],"created":"2026-10-18T21:21:10Z","modified":"2026-10-18T21:21:10Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154cm:g026191896:02619_1896-0028__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154cm:g026191896:02619_1896-0028","type":"ImageService3","width":1688,"height":1979},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1384.9,28.5 1365.2,85.0 1126.1,84.9 1126.0,194.2 1004.0,224.8 1004.0,255.8 1004.0,258.2 868.4,258.8 576.0,332.3 576.3,296.6 84.6,304.5 95.0,1848.7 250.3,1906.7 538.0,1867.9 1343.2,1958.5 1608.8,1941.9 1637.9,1882.7 1663.5,1883.6 1661.7,1208.2 1658.8,614.9 1658.0,97.1 1611.3,111.0 1537.0,45.1 1384.9,28.5\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154cm:g026191896:02619_1896-0028__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[591.0,1210.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-95.857559019692,41.247625708061754]}},{"type":"Feature","properties":{"resourceCoords":[591.0,66.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-95.85477839000045,41.24761173091182]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154cm:g026191896:02619_1896-0028__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Council Bluffs, Iowa | 1896 | sanborn02619_003 p28 [2]","metadata":[{"label":"streets","value":"2"},{"label":"intersections","value":"1"},{"label":"confidence","value":"0.91"},{"label":"confidence_provisional","value":"true"},{"label":"confidence_model","value":"corpus-v2"},{"label":"split_canvas_x","value":"1708.0"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"2308.0"},{"label":"split_canvas_h","value":"1043.6"}],"created":"2026-10-18T21:21:10Z","modified":"2026-10-18T21:21:10Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154cm:g026191896:02619_1896-0028__2/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154cm:g026191896:02619_1896-0028","type":"ImageService3","width":1688,"height":1979},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"984.1,254.3 989.4,82.8 608.6,20.6 483.4,134.1 460.6,97.1 454.1,171.7 522.0,259.9 532.0,259.9 533.0,250.9 565.0,250.9 566.0,259.7 581.0,259.5 582.0,250.9 613.0,250.9 613.9,259.1 984.1,254.3\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154cm:g026191896:02619_1896-0028__2/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[427.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-95.85828400924646,41.24089242388109]}},{"type":"Feature","properties":{"resourceCoords":[1004.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-95.85689429873239,41.240879040658456]}},{"type":"Feature","properties":{"resourceCoords":[1004.0,260.9],"type":"corner"},"geometry":{"type":"Point","coordinates":[-95.85690235871297,41.24040689017511]}},{"type":"Feature","properties":{"resourceCoords":[427.0,260.9],"type":"corner"},"geometry":{"type":"Point","coordinates":[-95.85829206922705,41.240420273397746]}},{"type":"Feature","properties":{"resourceCoords":[713.0,220.9],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-95.857602,41.240486]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154cm:g026191896:02619_1896-0029/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Council Bluffs, Iowa | 1896 | sanborn02619_003 p29","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.98"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T21:21:10Z","modified":"2026-10-18T21:21:10Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154cm:g026191896:02619_1896-0029/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154cm:g026191896:02619_1896-0029","type":"ImageService3","width":1688,"height":1979},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1670.0,1769.0 1664.6,1898.7 1538.3,1955.0 24.1,1883.2 29.5,1202.4 32.9,604.3 37.6,82.3 221.3,29.8 1582.8,79.7 1645.5,1166.5 1668.3,1162.1 1670.0,1769.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154cm:g026191896:02619_1896-0029/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[565.0,1209.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-95.85758294141242,41.244698071528596]}},{"type":"Feature","properties":{"resourceCoords":[565.0,57.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-95.85480534156403,41.24470616653144]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154cm:g026191896:02619_1896-0003/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Council Bluffs, Iowa | 1896 | sanborn02619_003 p3","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.96"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T21:21:10Z","modified":"2026-10-18T21:21:10Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154cm:g026191896:02619_1896-0003/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154cm:g026191896:02619_1896-0003","type":"ImageService3","width":1675,"height":1979},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"974.2,1960.0 942.9,1957.4 940.5,1967.0 934.4,1967.0 856.7,1967.0 728.0,1936.8 74.0,1781.8 93.3,1263.9 94.0,1132.6 113.7,975.1 113.7,945.6 511.9,495.0 556.5,494.1 555.0,260.1 787.3,18.9 790.3,18.9 792.5,29.6 1508.7,175.4 1621.9,725.9 1615.2,1627.8 1523.8,1742.8 1588.2,1778.8 1591.0,1870.0 1511.8,1864.0 1382.9,1960.5 1148.0,1960.0 1147.0,1967.0 1141.0,1967.0 1140.0,1960.0 1093.0,1960.0 1092.0,1967.0 1080.0,1967.0 1079.0,1960.0 1063.0,1960.0 1062.0,1966.8 984.0,1960.0 974.2,1960.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154cm:g026191896:02619_1896-0003/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[560.0,958.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-95.83850860610022,41.26591831715552]}},{"type":"Feature","properties":{"resourceCoords":[113.0,958.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-95.83936735264938,41.26640150837698]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154cm:g026191896:02619_1896-0030/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Council Bluffs, Iowa | 1896 | sanborn02619_003 p30","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.89"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T21:21:10Z","modified":"2026-10-18T21:21:10Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154cm:g026191896:02619_1896-0030/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154cm:g026191896:02619_1896-0030","type":"ImageService3","width":1688,"height":1979},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1619.0,1280.9 1607.8,1877.3 1607.2,1960.0 1594.2,1960.0 1594.1,1943.4 69.0,1895.7 33.2,254.3 47.1,70.8 193.2,77.1 501.8,82.0 592.0,89.6 592.7,61.3 1519.5,83.0 1519.7,53.5 1580.7,60.2 1580.6,80.8 1609.5,80.5 1613.7,1281.0 1619.0,1280.9\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154cm:g026191896:02619_1896-0030/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-95.86018649466216,41.264664494909155]}},{"type":"Feature","properties":{"resourceCoords":[1688.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-95.86020041723089,41.26163333834994]}},{"type":"Feature","properties":{"resourceCoords":[1688.0,1979.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-95.86489491924804,41.261645694549465]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1979.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-95.86488099667932,41.26467685110868]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154cm:g026191896:02619_1896-0031/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Council Bluffs, Iowa | 1896 | sanborn02619_003 p31","metadata":[{"label":"streets","value":"5"},{"label":"intersections","value":"1"},{"label":"confidence","value":"0.56"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T21:21:10Z","modified":"2026-10-18T21:21:10Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154cm:g026191896:02619_1896-0031/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154cm:g026191896:02619_1896-0031","type":"ImageService3","width":1688,"height":1979},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1169.8,1868.3 1169.9,1858.3 14.4,1877.7 15.1,1719.8 16.1,1516.1 22.4,1282.8 17.1,1282.8 22.6,100.5 1134.7,97.2 1449.3,101.0 1662.8,103.3 1666.1,403.9 1668.0,1059.2 1620.0,1891.5 1169.8,1868.3\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154cm:g026191896:02619_1896-0031/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-95.86014895188414,41.26181650317312]}},{"type":"Feature","properties":{"resourceCoords":[1688.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-95.86013006757348,41.25876268352973]}},{"type":"Feature","properties":{"resourceCoords":[1688.0,1979.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-95.86489685006015,41.258746054539074]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1979.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-95.86491573437081,41.261799874182465]}},{"type":"Feature","properties":{"resourceCoords":[673.0,78.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-95.8603293,41.2605983]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154cm:g026191896:02619_1896-0032/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Council Bluffs, Iowa | 1896 | sanborn02619_003 p32","metadata":[{"label":"streets","value":"5"},{"label":"intersections","value":"7"},{"label":"confidence","value":"0.21"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T21:21:10Z","modified":"2026-10-18T21:21:10Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154cm:g026191896:02619_1896-0032/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154cm:g026191896:02619_1896-0032","type":"ImageService3","width":1688,"height":1979},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"563.6,1907.2 563.6,1901.6 401.0,1901.8 84.6,1891.0 66.1,81.0 801.8,23.9 1583.2,56.7 1635.0,1175.6 1594.7,1942.0 563.6,1907.2\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154cm:g026191896:02619_1896-0032/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1572.0,1903.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-95.86904,41.26801]}},{"type":"Feature","properties":{"resourceCoords":[1572.0,609.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-95.8659481,41.2679959]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154cm:g026191896:02619_1896-0033/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Council Bluffs, Iowa | 1896 | sanborn02619_003 p33","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.86"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T21:21:10Z","modified":"2026-10-18T21:21:10Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154cm:g026191896:02619_1896-0033/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154cm:g026191896:02619_1896-0033","type":"ImageService3","width":1688,"height":1979},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1592.4,1951.0 38.5,1931.2 28.8,192.0 41.2,192.0 42.1,101.2 1185.7,75.1 1185.7,85.0 1628.3,105.1 1626.5,140.5 1656.6,697.5 1666.9,697.1 1670.0,1771.0 1664.6,1898.3 1664.3,1898.5 1662.3,1919.0 1647.0,1911.2 1592.4,1951.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154cm:g026191896:02619_1896-0033/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1647.0,623.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-95.86595499046956,41.258836795184735]}},{"type":"Feature","properties":{"resourceCoords":[1647.0,1923.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-95.86913762759688,41.258840193286964]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154cm:g026191896:02619_1896-0034/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Council Bluffs, Iowa | 1896 | sanborn02619_003 p34","metadata":[{"label":"streets","value":"8"},{"label":"intersections","value":"15"},{"label":"confidence","value":"0.99"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T21:21:10Z","modified":"2026-10-18T21:21:10Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154cm:g026191896:02619_1896-0034/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154cm:g026191896:02619_1896-0034","type":"ImageService3","width":1688,"height":1979},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"57.6,63.4 1495.6,31.8 1581.5,31.8 1611.4,501.3 1593.8,501.2 1603.0,935.1 1595.0,1432.2 1615.7,1432.2 1591.7,1931.3 1519.7,1939.8 112.5,1944.8 54.0,1901.0 74.5,1728.6 111.3,1706.2 107.2,1429.7 106.4,1181.6 110.8,104.0 59.9,104.3 58.8,84.8 57.6,63.4\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154cm:g026191896:02619_1896-0034/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[639.0,1430.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-95.8721672,41.2562239]}},{"type":"Feature","properties":{"resourceCoords":[639.0,500.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-95.8721535,41.2579306]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154cm:g026191896:02619_1896-0035/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Council Bluffs, Iowa | 1896 | sanborn02619_003 p35","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.99"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T21:21:10Z","modified":"2026-10-18T21:21:10Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154cm:g026191896:02619_1896-0035/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154cm:g026191896:02619_1896-0035","type":"ImageService3","width":1688,"height":1979},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"342.4,26.9 359.5,17.2 361.4,17.2 383.2,17.3 383.4,17.6 511.1,22.9 1052.4,20.8 1588.3,23.6 1589.0,39.4 1649.8,1419.5 1629.0,1904.6 1577.6,1941.5 13.1,1941.5 13.1,1940.0 72.0,1933.2 97.8,1434.3 77.2,1434.2 85.9,937.1 86.9,937.1 79.3,503.3 96.9,503.4 68.7,33.8 342.4,26.9\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154cm:g026191896:02619_1896-0035/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[366.0,502.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-95.86912278287318,41.25791880936286]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,1913.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-95.86608679982018,41.25532357256932]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154cm:g026191896:02619_1896-0037__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Council Bluffs, Iowa | 1896 | sanborn02619_003 p37 [1]","metadata":[{"label":"streets","value":"5"},{"label":"intersections","value":"6"},{"label":"confidence","value":"0.92"},{"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":"6752.0"},{"label":"split_canvas_h","value":"7916.0"}],"created":"2026-10-18T21:21:10Z","modified":"2026-10-18T21:21:10Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154cm:g026191896:02619_1896-0037__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154cm:g026191896:02619_1896-0037","type":"ImageService3","width":1688,"height":1979},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"20.0,81.3 20.0,99.2 20.0,133.6 128.9,128.2 196.7,234.0 355.2,234.1 356.1,237.9 358.0,237.9 358.0,246.8 468.0,747.5 845.3,846.0 935.7,1087.5 1094.2,1148.1 1161.9,1374.6 1139.0,1706.7 1206.7,1880.3 1561.5,1918.4 1614.3,1865.6 1623.2,348.4 1563.0,114.4 1665.3,127.2 1665.2,92.2 1381.3,94.4 1126.5,93.5 20.0,81.3\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154cm:g026191896:02619_1896-0037__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1378.0,872.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-95.875314,41.256235]}},{"type":"Feature","properties":{"resourceCoords":[425.0,86.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-95.8734474,41.2579394]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154cm:g026191896:02619_1896-0037__3/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Council Bluffs, Iowa | 1896 | sanborn02619_003 p37 [3]","metadata":[{"label":"streets","value":"3"},{"label":"intersections","value":"2"},{"label":"confidence","value":"0.66"},{"label":"confidence_provisional","value":"true"},{"label":"confidence_model","value":"corpus-v2"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"2900.0"},{"label":"split_canvas_w","value":"3310.4"},{"label":"split_canvas_h","value":"5016.0"}],"created":"2026-10-18T21:21:10Z","modified":"2026-10-18T21:21:10Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154cm:g026191896:02619_1896-0037__3/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154cm:g026191896:02619_1896-0037","type":"ImageService3","width":1688,"height":1979},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"823.6,1184.3 822.4,940.4 761.1,872.0 128.0,753.2 37.4,936.7 56.9,1775.3 217.6,1904.1 354.3,1895.8 313.0,1179.3 823.6,1184.3\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154cm:g026191896:02619_1896-0037__3/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[300.9,1051.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-95.8708598,41.254388]}},{"type":"Feature","properties":{"resourceCoords":[300.9,1609.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-95.872173,41.254393]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154cm:g026191896:02619_1896-0037__4/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Council Bluffs, Iowa | 1896 | sanborn02619_003 p37 [4]","metadata":[{"label":"streets","value":"4"},{"label":"intersections","value":"4"},{"label":"confidence","value":"0.96"},{"label":"confidence_provisional","value":"true"},{"label":"confidence_model","value":"corpus-v2"},{"label":"split_canvas_x","value":"1418.0"},{"label":"split_canvas_y","value":"4740.0"},{"label":"split_canvas_w","value":"2976.0"},{"label":"split_canvas_h","value":"3176.0"}],"created":"2026-10-18T21:21:10Z","modified":"2026-10-18T21:21:10Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154cm:g026191896:02619_1896-0037__4/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154cm:g026191896:02619_1896-0037","type":"ImageService3","width":1688,"height":1979},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1067.5,1957.0 1068.8,1196.3 367.6,1187.2 373.6,1955.2 1067.5,1957.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154cm:g026191896:02619_1896-0037__4/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1023.6,1897.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-95.8676044,41.2534632]}},{"type":"Feature","properties":{"resourceCoords":[1023.6,1265.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-95.866054,41.253454]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154cm:g026191896:02619_1896-0038__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Council Bluffs, Iowa | 1896 | sanborn02619_003 p38 [2]","metadata":[{"label":"streets","value":"3"},{"label":"intersections","value":"3"},{"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":"0.0"},{"label":"split_canvas_w","value":"6724.0"},{"label":"split_canvas_h","value":"4289.6"}],"created":"2026-10-18T21:21:10Z","modified":"2026-10-18T21:21:10Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154cm:g026191896:02619_1896-0038__2/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154cm:g026191896:02619_1896-0038","type":"ImageService3","width":1681,"height":1979},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"42.9,844.7 65.2,927.6 780.6,907.2 825.7,937.4 802.7,1065.4 1615.9,1060.3 1587.9,352.2 1659.8,341.8 1659.7,332.1 1659.6,327.7 1003.5,281.1 1023.3,312.8 1045.1,569.0 1006.5,667.4 1006.8,697.7 1006.8,698.0 994.5,698.2 992.0,704.4 103.4,739.4 42.9,844.7\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154cm:g026191896:02619_1896-0038__2/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1073.0,89.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-95.8890544,41.2619668]}},{"type":"Feature","properties":{"resourceCoords":[364.0,89.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-95.8907442,41.261963]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154cm:g026191896:02619_1896-0038__3/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Council Bluffs, Iowa | 1896 | sanborn02619_003 p38 [3]","metadata":[{"label":"streets","value":"2"},{"label":"intersections","value":"1"},{"label":"confidence","value":"0.72"},{"label":"confidence_provisional","value":"true"},{"label":"confidence_model","value":"corpus-v2"},{"label":"split_canvas_x","value":"2184.0"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"1830.4"},{"label":"split_canvas_h","value":"1186.0"}],"created":"2026-10-18T21:21:10Z","modified":"2026-10-18T21:21:10Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154cm:g026191896:02619_1896-0038__3/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154cm:g026191896:02619_1896-0038","type":"ImageService3","width":1681,"height":1979},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"981.9,270.3 976.1,35.9 566.7,28.2 593.8,150.8 567.7,143.6 568.8,277.6 981.9,270.3\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154cm:g026191896:02619_1896-0038__3/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[546.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-95.89303828133477,41.26292321718641]}},{"type":"Feature","properties":{"resourceCoords":[1003.6,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-95.89083198734146,41.26290885250813]}},{"type":"Feature","properties":{"resourceCoords":[1003.6,296.5],"type":"corner"},"geometry":{"type":"Point","coordinates":[-95.89084438944845,41.26183425518322]}},{"type":"Feature","properties":{"resourceCoords":[546.0,296.5],"type":"corner"},"geometry":{"type":"Point","coordinates":[-95.89305068344176,41.261848619861496]}},{"type":"Feature","properties":{"resourceCoords":[672.9,265.6],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-95.8924376,41.2619568]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154cm:g026191896:02619_1896-0038__4/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Council Bluffs, Iowa | 1896 | sanborn02619_003 p38 [4]","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.84"},{"label":"confidence_provisional","value":"true"},{"label":"confidence_model","value":"corpus-v2"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"3698.0"},{"label":"split_canvas_w","value":"3238.0"},{"label":"split_canvas_h","value":"4218.0"}],"created":"2026-10-18T21:21:10Z","modified":"2026-10-18T21:21:10Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154cm:g026191896:02619_1896-0038__4/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154cm:g026191896:02619_1896-0038","type":"ImageService3","width":1681,"height":1979},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"767.8,1889.0 751.5,1029.1 690.0,955.0 42.3,1019.9 79.4,1788.8 270.9,1943.6 767.8,1889.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154cm:g026191896:02619_1896-0038__4/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[218.9,1452.2],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-95.87960767609964,41.261952354522066]}},{"type":"Feature","properties":{"resourceCoords":[731.5,1452.2],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-95.87838815445603,41.261935078927394]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154cm:g026191896:02619_1896-0039__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Council Bluffs, Iowa | 1896 | sanborn02619_003 p39 [2]","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.81"},{"label":"confidence_provisional","value":"true"},{"label":"confidence_model","value":"corpus-v2"},{"label":"split_canvas_x","value":"1702.0"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"5022.0"},{"label":"split_canvas_h","value":"7916.0"}],"created":"2026-10-18T21:21:10Z","modified":"2026-10-18T21:21:10Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154cm:g026191896:02619_1896-0039__2/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154cm:g026191896:02619_1896-0039","type":"ImageService3","width":1681,"height":1979},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"492.4,765.5 493.6,929.6 552.8,940.1 709.2,1081.8 1349.9,1089.2 1350.8,1094.0 1356.7,1094.0 1356.7,1124.8 1416.9,1439.5 1379.7,1879.2 1484.0,1938.8 1625.5,1909.0 1610.7,68.2 776.3,30.9 552.8,98.0 485.8,418.4 517.8,713.6 492.4,744.2 492.4,765.5\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154cm:g026191896:02619_1896-0039__2/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1493.1,1276.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-95.88435784489268,41.26194265761413]}},{"type":"Feature","properties":{"resourceCoords":[492.5,1276.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-95.88676819484782,41.26194257995842]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154cm:g026191896:02619_1896-0039__4/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Council Bluffs, Iowa | 1896 | sanborn02619_003 p39 [4]","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.65"},{"label":"confidence_provisional","value":"true"},{"label":"confidence_model","value":"corpus-v2"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"3522.0"},{"label":"split_canvas_w","value":"5426.8"},{"label":"split_canvas_h","value":"4394.0"}],"created":"2026-10-18T21:21:10Z","modified":"2026-10-18T21:21:10Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154cm:g026191896:02619_1896-0039__4/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154cm:g026191896:02619_1896-0039","type":"ImageService3","width":1681,"height":1979},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1338.5,1176.4 1338.5,1155.3 1235.7,1098.3 820.3,1126.6 649.9,1074.6 479.6,919.5 71.8,925.8 47.1,1824.0 117.9,1838.2 1034.5,1902.5 1300.4,1864.2 1309.2,1356.2 1339.2,1353.7 1338.5,1176.4\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154cm:g026191896:02619_1896-0039__4/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,880.5],"type":"corner"},"geometry":{"type":"Point","coordinates":[-95.89000916828397,41.26340207315021]}},{"type":"Feature","properties":{"resourceCoords":[1356.7,880.5],"type":"corner"},"geometry":{"type":"Point","coordinates":[-95.8867262804933,41.26340872290631]}},{"type":"Feature","properties":{"resourceCoords":[1356.7,1979.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-95.88671916622393,41.261396078086875]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1979.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-95.89000205401459,41.26138942833077]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154cm:g026191896:02619_1896-0040__5/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Council Bluffs, Iowa | 1896 | sanborn02619_003 p40 [5]","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.39"},{"label":"confidence_provisional","value":"true"},{"label":"confidence_model","value":"corpus-v2"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"4004.0"},{"label":"split_canvas_w","value":"3282.0"},{"label":"split_canvas_h","value":"1176.8"}],"created":"2026-10-18T21:21:10Z","modified":"2026-10-18T21:21:10Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154cm:g026191896:02619_1896-0040__5/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154cm:g026191896:02619_1896-0040","type":"ImageService3","width":1681,"height":1979},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"634.8,1167.6 607.0,1136.4 525.9,1099.3 377.3,1138.3 348.1,1059.1 230.2,1120.5 296.8,1144.0 284.4,1173.0 245.9,1193.5 443.2,1191.5 463.4,1231.0 425.3,1283.9 618.6,1290.0 520.3,1236.8 704.2,1156.2 634.8,1167.6\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154cm:g026191896:02619_1896-0040__5/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,1001.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-95.85788801420019,41.27418672388518]}},{"type":"Feature","properties":{"resourceCoords":[820.5,1001.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-95.85706975666166,41.27283225455862]}},{"type":"Feature","properties":{"resourceCoords":[820.5,1295.2],"type":"corner"},"geometry":{"type":"Point","coordinates":[-95.85771060371495,41.272610479274455]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1295.2],"type":"corner"},"geometry":{"type":"Point","coordinates":[-95.85852886125348,41.27396494860101]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154cm:g026191896:02619_1896-0041__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Council Bluffs, Iowa | 1896 | sanborn02619_003 p41 [1]","metadata":[{"label":"streets","value":"3"},{"label":"intersections","value":"3"},{"label":"confidence","value":"0.48"},{"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":"4038.8"},{"label":"split_canvas_h","value":"7916.0"}],"created":"2026-10-18T21:21:10Z","modified":"2026-10-18T21:21:10Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154cm:g026191896:02619_1896-0041__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154cm:g026191896:02619_1896-0041","type":"ImageService3","width":1681,"height":1979},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"628.2,1196.3 863.0,963.5 843.4,857.5 706.7,829.4 673.8,556.5 903.4,186.3 871.1,128.5 616.4,85.8 204.2,263.0 143.9,342.0 100.2,822.0 136.0,1766.0 147.6,1784.2 149.9,1884.5 180.9,1885.0 181.6,1856.2 580.8,1424.8 624.4,1424.9 626.4,1307.4 628.2,1196.3\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154cm:g026191896:02619_1896-0041__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[614.8,1885.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-95.838523,41.265911]}},{"type":"Feature","properties":{"resourceCoords":[180.9,1885.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-95.8393906,41.266376]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154cm:g026191896:02619_1896-0041__4/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Council Bluffs, Iowa | 1896 | sanborn02619_003 p41 [4]","metadata":[{"label":"streets","value":"2"},{"label":"intersections","value":"1"},{"label":"confidence","value":"0.81"},{"label":"confidence_provisional","value":"true"},{"label":"confidence_model","value":"corpus-v2"},{"label":"split_canvas_x","value":"5032.0"},{"label":"split_canvas_y","value":"3630.8"},{"label":"split_canvas_w","value":"1692.0"},{"label":"split_canvas_h","value":"2741.2"}],"created":"2026-10-18T21:21:10Z","modified":"2026-10-18T21:21:10Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154cm:g026191896:02619_1896-0041__4/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154cm:g026191896:02619_1896-0041","type":"ImageService3","width":1681,"height":1979},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1656.9,1458.9 1603.6,1316.6 1657.5,1248.1 1622.6,980.4 1361.2,940.8 1272.5,1066.0 1293.3,1254.8 1355.0,1375.3 1367.0,1379.8 1381.0,1385.0 1381.0,1426.1 1415.9,1494.4 1567.5,1540.7 1656.9,1458.9\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154cm:g026191896:02619_1896-0041__4/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[1258.0,907.7],"type":"corner"},"geometry":{"type":"Point","coordinates":[-95.8363910008414,41.25741482201387]}},{"type":"Feature","properties":{"resourceCoords":[1681.0,907.7],"type":"corner"},"geometry":{"type":"Point","coordinates":[-95.83552539106391,41.257011155450236]}},{"type":"Feature","properties":{"resourceCoords":[1681.0,1593.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-95.83639698685569,41.25595677510195]}},{"type":"Feature","properties":{"resourceCoords":[1258.0,1593.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-95.83726259663318,41.256360441665585]}},{"type":"Feature","properties":{"resourceCoords":[1430.0,1355.2],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-95.836608,41.256562]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154cm:g026191896:02619_1896-0042__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Council Bluffs, Iowa | 1896 | sanborn02619_003 p42 [1]","metadata":[{"label":"streets","value":"3"},{"label":"intersections","value":"3"},{"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":"5011.6"},{"label":"split_canvas_w","value":"2638.8"},{"label":"split_canvas_h","value":"2904.4"}],"created":"2026-10-18T21:21:10Z","modified":"2026-10-18T21:21:10Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154cm:g026191896:02619_1896-0042__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154cm:g026191896:02619_1896-0042","type":"ImageService3","width":1681,"height":1979},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"598.6,1770.2 551.1,1714.2 530.5,1276.5 50.5,1333.1 32.8,1573.6 14.0,1573.9 14.0,1778.2 15.1,1818.8 386.8,1816.2 387.3,1904.4 610.4,1810.2 598.6,1770.2\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154cm:g026191896:02619_1896-0042__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[386.8,1290.8],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-95.846728,41.247586]}},{"type":"Feature","properties":{"resourceCoords":[386.8,1833.2],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-95.8467485,41.2465505]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154cm:g026191896:02619_1896-0042__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Council Bluffs, Iowa | 1896 | sanborn02619_003 p42 [2]","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.73"},{"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":"6724.0"},{"label":"split_canvas_h","value":"7916.0"}],"created":"2026-10-18T21:21:10Z","modified":"2026-10-18T21:21:10Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154cm:g026191896:02619_1896-0042__2/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154cm:g026191896:02619_1896-0042","type":"ImageService3","width":1681,"height":1979},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"42.2,457.4 116.8,778.5 86.9,930.2 186.2,1164.9 558.0,1252.9 563.0,1252.9 563.0,1254.1 565.5,1254.7 711.1,1822.8 984.0,1822.0 1143.5,1935.2 1552.8,1911.2 1570.7,228.6 1509.8,145.4 1264.2,138.7 1276.2,181.7 1035.8,279.9 1036.4,185.2 638.0,183.3 637.3,139.8 638.7,20.0 506.0,19.8 505.1,172.7 504.9,182.6 253.0,181.3 289.4,265.2 42.2,457.4\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154cm:g026191896:02619_1896-0042__2/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1539.0,505.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-95.8455605456942,41.24601128344488]}},{"type":"Feature","properties":{"resourceCoords":[1037.0,171.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-95.84674654857287,41.24660833866862]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154cm:g026191896:02619_1896-0043__3/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Council Bluffs, Iowa | 1896 | sanborn02619_003 p43 [3]","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.57"},{"label":"confidence_provisional","value":"true"},{"label":"confidence_model","value":"corpus-v2"},{"label":"split_canvas_x","value":"3519.6"},{"label":"split_canvas_y","value":"5572.0"},{"label":"split_canvas_w","value":"3204.4"},{"label":"split_canvas_h","value":"2344.0"}],"created":"2026-10-18T21:21:10Z","modified":"2026-10-18T21:21:10Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154cm:g026191896:02619_1896-0043__3/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154cm:g026191896:02619_1896-0043","type":"ImageService3","width":1681,"height":1979},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1631.1,1911.2 1568.5,1800.5 1613.1,1526.0 1467.5,1433.9 1132.8,1418.1 1090.7,1480.5 916.3,1422.9 925.2,1644.7 1057.6,1706.2 1100.0,1887.7 1437.6,1876.6 1426.0,1925.5 1631.1,1911.2\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154cm:g026191896:02619_1896-0043__3/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[879.9,1393.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-95.84386944394515,41.24210997365932]}},{"type":"Feature","properties":{"resourceCoords":[1681.0,1393.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-95.84264037344902,41.24099135093258]}},{"type":"Feature","properties":{"resourceCoords":[1681.0,1979.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-95.84371973555804,41.24031130263236]}},{"type":"Feature","properties":{"resourceCoords":[879.9,1979.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-95.84494880605418,41.24142992535909]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154cm:g026191896:02619_1896-0044__5/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Council Bluffs, Iowa | 1896 | sanborn02619_003 p44 [5]","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.92"},{"label":"confidence_provisional","value":"true"},{"label":"confidence_model","value":"corpus-v2"},{"label":"split_canvas_x","value":"2392.0"},{"label":"split_canvas_y","value":"5087.2"},{"label":"split_canvas_w","value":"4332.0"},{"label":"split_canvas_h","value":"2828.8"}],"created":"2026-10-18T21:21:10Z","modified":"2026-10-18T21:21:10Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154cm:g026191896:02619_1896-0044__5/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154cm:g026191896:02619_1896-0044","type":"ImageService3","width":1681,"height":1979},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1290.5,1966.7 1390.0,1959.0 1596.9,1957.3 1634.7,1929.1 1642.5,1570.9 1587.6,1295.0 978.1,1298.5 847.8,1293.5 857.6,1315.3 641.3,1360.9 648.1,1950.5 1290.5,1966.7\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154cm:g026191896:02619_1896-0044__5/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[933.0,1387.7],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-95.85903089051865,41.242529680596135]}},{"type":"Feature","properties":{"resourceCoords":[1533.0,1387.7],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-95.85759026271185,41.242530771450134]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154cm:g026191896:02619_1896-0045__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Council Bluffs, Iowa | 1896 | sanborn02619_003 p45 [2]","metadata":[{"label":"streets","value":"3"},{"label":"intersections","value":"2"},{"label":"confidence","value":"0.75"},{"label":"confidence_provisional","value":"true"},{"label":"confidence_model","value":"corpus-v2"},{"label":"split_canvas_x","value":"2736.0"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"2588.0"},{"label":"split_canvas_h","value":"1942.0"}],"created":"2026-10-18T21:21:10Z","modified":"2026-10-18T21:21:10Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154cm:g026191896:02619_1896-0045__2/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154cm:g026191896:02619_1896-0045","type":"ImageService3","width":1681,"height":1979},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1308.0,469.0 1298.2,60.0 724.5,26.4 719.0,449.8 1308.0,469.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154cm:g026191896:02619_1896-0045__2/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[757.0,235.8],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-95.878386,41.259761]}},{"type":"Feature","properties":{"resourceCoords":[1301.0,235.8],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-95.877027,41.259757]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154cm:g026191896:02619_1896-0045__3/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Council Bluffs, Iowa | 1896 | sanborn02619_003 p45 [3]","metadata":[{"label":"streets","value":"5"},{"label":"intersections","value":"7"},{"label":"confidence","value":"0.74"},{"label":"confidence_provisional","value":"true"},{"label":"confidence_model","value":"corpus-v2"},{"label":"split_canvas_x","value":"5224.0"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"1500.0"},{"label":"split_canvas_h","value":"7916.0"}],"created":"2026-10-18T21:21:10Z","modified":"2026-10-18T21:21:10Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154cm:g026191896:02619_1896-0045__3/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154cm:g026191896:02619_1896-0045","type":"ImageService3","width":1681,"height":1979},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1452.5,1921.8 1581.4,1902.0 1632.1,1661.2 1609.4,292.7 1596.5,194.2 1477.5,108.4 1393.0,167.0 1334.6,1443.0 1378.3,1859.7 1452.5,1921.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154cm:g026191896:02619_1896-0045__3/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1405.0,695.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-95.8963651,41.2619458]}},{"type":"Feature","properties":{"resourceCoords":[1601.0,1866.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-95.8958383,41.2598635]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154cm:g026191896:02619_1896-0045__5/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Council Bluffs, Iowa | 1896 | sanborn02619_003 p45 [5]","metadata":[{"label":"streets","value":"4"},{"label":"intersections","value":"4"},{"label":"confidence","value":"0.92"},{"label":"confidence_provisional","value":"true"},{"label":"confidence_model","value":"corpus-v2"},{"label":"split_canvas_x","value":"2484.0"},{"label":"split_canvas_y","value":"4025.6"},{"label":"split_canvas_w","value":"2740.0"},{"label":"split_canvas_h","value":"3890.4"}],"created":"2026-10-18T21:21:10Z","modified":"2026-10-18T21:21:10Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154cm:g026191896:02619_1896-0045__5/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154cm:g026191896:02619_1896-0045","type":"ImageService3","width":1681,"height":1979},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1281.6,1855.8 1271.2,1092.4 1218.1,1040.7 791.0,1024.1 673.0,1160.4 674.9,1849.1 773.6,1952.5 795.5,1907.3 1230.2,1931.3 1281.6,1855.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154cm:g026191896:02619_1896-0045__5/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[709.0,1616.2],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-95.8618133,41.2524933]}},{"type":"Feature","properties":{"resourceCoords":[709.0,1094.4],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-95.8617963,41.2534336]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154cm:g026191896:02619_1896-0004__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Council Bluffs, Iowa | 1896 | sanborn02619_003 p4 [1]","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.92"},{"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":"5535.6"},{"label":"split_canvas_h","value":"7916.0"}],"created":"2026-10-18T21:21:10Z","modified":"2026-10-18T21:21:10Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154cm:g026191896:02619_1896-0004__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154cm:g026191896:02619_1896-0004","type":"ImageService3","width":1675,"height":1979},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"57.2,603.2 66.5,604.5 119.6,721.2 89.8,826.4 86.9,980.0 323.2,1019.5 514.4,1044.9 506.8,1103.5 156.2,1047.7 76.0,1416.3 93.1,1449.8 185.7,1563.7 108.0,1671.8 85.0,1765.2 79.4,1885.8 716.5,1882.9 803.4,1617.5 865.0,1411.8 946.1,1163.2 645.6,1125.7 653.2,1062.6 965.9,1101.2 1205.2,354.5 1249.8,353.3 1233.7,340.3 1281.3,137.6 1230.0,57.6 828.7,100.8 401.9,55.8 178.1,309.6 144.6,494.8 57.2,603.2\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154cm:g026191896:02619_1896-0004__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1130.9,565.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-95.84375892551894,41.26638879237843]}},{"type":"Feature","properties":{"resourceCoords":[81.0,1873.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-95.84375107289645,41.26337659837309]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154cm:g026191896:02619_1896-0005/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Council Bluffs, Iowa | 1896 | sanborn02619_003 p5","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.98"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T21:21:10Z","modified":"2026-10-18T21:21:10Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154cm:g026191896:02619_1896-0005/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154cm:g026191896:02619_1896-0005","type":"ImageService3","width":1675,"height":1979},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"107.2,1125.8 116.8,159.6 113.3,85.6 789.4,80.2 922.4,78.8 1004.3,58.6 1004.3,48.7 1045.0,41.4 1181.0,20.1 1422.3,19.6 1604.8,177.8 1619.5,1902.8 836.6,1848.4 822.7,1847.5 830.9,1789.9 683.9,1770.7 493.5,1764.3 305.5,1767.5 104.3,1763.9 107.2,1125.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154cm:g026191896:02619_1896-0005/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[943.0,1261.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-95.84153810568569,41.26276680469995]}},{"type":"Feature","properties":{"resourceCoords":[116.0,870.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-95.84206904395919,41.26435780732735]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154cm:g026191896:02619_1896-0006/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Council Bluffs, Iowa | 1896 | sanborn02619_003 p6","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.90"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T21:21:10Z","modified":"2026-10-18T21:21:10Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154cm:g026191896:02619_1896-0006/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154cm:g026191896:02619_1896-0006","type":"ImageService3","width":1675,"height":1979},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"99.9,1771.9 78.3,1300.5 171.6,1299.9 349.2,1299.7 422.7,234.4 809.7,272.2 822.1,106.2 1008.5,38.7 1311.3,73.8 1308.3,133.4 1428.9,61.3 1416.8,265.4 1389.7,460.4 1339.2,1019.1 1313.5,1213.2 1272.5,1394.8 1252.7,1634.8 1247.6,1861.2 1198.2,1917.0 304.6,1926.8 47.6,1825.6 99.9,1771.9\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154cm:g026191896:02619_1896-0006/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[776.0,1644.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-95.8466121174764,41.26110470237705]}},{"type":"Feature","properties":{"resourceCoords":[1347.0,745.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-95.84661746308413,41.26304427614734]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154cm:g026191896:02619_1896-0007/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Council Bluffs, Iowa | 1896 | sanborn02619_003 p7","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.94"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T21:21:10Z","modified":"2026-10-18T21:21:10Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154cm:g026191896:02619_1896-0007/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154cm:g026191896:02619_1896-0007","type":"ImageService3","width":1680,"height":1979},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1358.0,1934.2 835.2,1888.2 295.1,1926.3 216.8,1843.7 173.0,1894.8 174.3,1670.5 190.0,1432.5 227.7,1251.9 249.9,1059.4 290.9,505.4 314.5,311.7 323.1,109.4 414.0,53.0 1152.6,42.3 1165.9,20.7 1175.0,20.7 1240.9,127.2 1225.0,232.8 1241.2,381.9 1475.1,391.0 1663.4,392.1 1663.3,449.7 1316.8,438.9 1284.6,806.0 1305.3,836.3 1409.0,935.2 1347.2,1049.5 1336.4,1142.9 1346.0,1260.3 1369.0,1455.2 1397.0,1636.4 1416.0,1821.2 1416.9,1965.8 1394.2,1965.6 1360.2,1965.5 1358.0,1934.2\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154cm:g026191896:02619_1896-0007/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[177.0,1679.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-95.84563398077427,41.26157496783413]}},{"type":"Feature","properties":{"resourceCoords":[1318.0,767.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-95.84442542692277,41.26410278347465]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154cm:g026191896:02619_1896-0008__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Council Bluffs, Iowa | 1896 | sanborn02619_003 p8 [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":"6720.0"},{"label":"split_canvas_h","value":"7916.0"}],"created":"2026-10-18T21:21:10Z","modified":"2026-10-18T21:21:10Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154cm:g026191896:02619_1896-0008__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154cm:g026191896:02619_1896-0008","type":"ImageService3","width":1680,"height":1979},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1550.6,1833.2 1547.9,894.6 1549.9,404.4 1543.9,53.3 755.4,22.5 468.7,99.2 126.9,63.5 59.5,147.8 51.7,693.4 381.8,747.2 383.9,752.0 390.5,752.1 390.5,766.7 426.3,846.5 390.6,1079.4 52.2,1423.6 90.8,1749.5 377.4,1781.5 416.9,1966.2 753.0,1969.0 870.8,1938.2 1152.8,1839.5 1221.0,1833.1 1550.6,1833.2\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154cm:g026191896:02619_1896-0008__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1549.0,702.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-95.85196655764663,41.26404723188368]}},{"type":"Feature","properties":{"resourceCoords":[1549.0,1803.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-95.85450930033929,41.264455557225205]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154cm:g026191896:02619_1896-0009__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Council Bluffs, Iowa | 1896 | sanborn02619_003 p9 [1]","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.86"},{"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":"6720.0"},{"label":"split_canvas_h","value":"7916.0"}],"created":"2026-10-18T21:21:10Z","modified":"2026-10-18T21:21:10Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154cm:g026191896:02619_1896-0009__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154cm:g026191896:02619_1896-0009","type":"ImageService3","width":1680,"height":1979},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"50.1,1878.8 407.4,1865.0 1354.1,1850.4 1550.7,1844.2 1544.8,1371.2 1544.7,1186.0 1537.5,714.3 1520.2,601.3 1504.5,551.6 1460.5,476.0 1425.3,437.6 1324.1,338.2 1198.8,213.8 400.3,913.5 153.9,615.5 28.8,723.9 69.1,742.6 51.3,1538.9 40.8,1538.6 50.1,1878.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154cm:g026191896:02619_1896-0009__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1547.0,1378.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-95.85088632781537,41.26105894654423]}},{"type":"Feature","properties":{"resourceCoords":[68.0,1861.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-95.851246958191,41.2638961127235]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154cm:g026191896:02619_1896-0009__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Council Bluffs, Iowa | 1896 | sanborn02619_003 p9 [2]","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.39"},{"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":"4723.6"},{"label":"split_canvas_h","value":"3071.6"}],"created":"2026-10-18T21:21:10Z","modified":"2026-10-18T21:21:10Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154cm:g026191896:02619_1896-0009__2/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154cm:g026191896:02619_1896-0009","type":"ImageService3","width":1680,"height":1979},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"602.7,251.7 602.5,289.7 632.8,289.9 663.1,282.4 951.0,207.5 966.2,192.3 966.2,184.7 958.8,161.8 686.5,137.7 618.4,137.4 610.8,152.6 602.7,251.7\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154cm:g026191896:02619_1896-0009__2/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-95.85191966302075,41.261452512785134]}},{"type":"Feature","properties":{"resourceCoords":[1180.9,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-95.85193226940437,41.263557672113876]}},{"type":"Feature","properties":{"resourceCoords":[1180.9,767.9],"type":"corner"},"geometry":{"type":"Point","coordinates":[-95.8501238388557,41.2635638778928]}},{"type":"Feature","properties":{"resourceCoords":[0.0,767.9],"type":"corner"},"geometry":{"type":"Point","coordinates":[-95.85011123247207,41.26145871856406]}}]}}]}