{"id":"https://data.mapsnap.org/runs/v2.0/iiif/chronoscope/sanborn02597_001.main.iiif.json","type":"AnnotationPage","@context":["http://www.w3.org/ns/anno.jsonld"],"label":"Cedar Rapids, Iowa | 1884 | mapsnap generated fit (2026-10-20)","creator":{"type":"Software","name":"mapsnap","homepage":"https://mapsnap.org"},"rights":"https://opendatacommons.org/licenses/odbl/1-0/","metadata":[{"label":"generated","value":"2026-10-20"},{"label":"run","value":"corpus-v2"},{"label":"pages","value":"27"},{"label":"placed","value":"9"},{"label":"unplaced","value":"18"},{"label":"fit sources","value":"georef 6, georef-snap 2, snap:0 1"},{"label":"key map","value":"georeferenced"},{"label":"split sheets","value":"7 sheet(s) cut into 23 panels"},{"label":"unplaced pages","value":"p10 (tier 3, 41.96870,-91.65366 +/-569m); p12__1 (tier 1, 41.98176,-91.68009 +/-106m); p12__2 (tier 1, 41.98060,-91.68174 +/-215m); p12__3 (tier 3, 41.97928,-91.67534 +/-787m); p12__4 (tier 1, 41.97308,-91.67159 +/-101m); p12__5 (tier 1, 41.97955,-91.67593 +/-100m); p2__1 (tier 1, 41.98258,-91.66466 +/-259m); p3__1 (tier 1, 41.98016,-91.65882 +/-229m); p3__2 (tier 1, 41.98113,-91.67056 +/-100m); p3__4 (tier 1, 41.97743,-91.65937 +/-100m); p3__5 (tier 1, 41.98270,-91.66810 +/-100m); p4__1 (tier 1, 41.98197,-91.66231 +/-265m); p4__2 (tier 1, 41.98029,-91.66651 +/-164m); p5 (tier 1, 41.97980,-91.67041 +/-262m); p8__2 (tier 1, 41.97460,-91.66532 +/-102m); p8__3 (tier 1, 41.97309,-91.66141 +/-105m); p8__4 (tier 1, 41.97688,-91.66936 +/-124m); p8__5 (tier 1, 41.97215,-91.65409 +/-100m)"}],"items":[{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154cm:g025971884:02597_1884-0011/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Cedar Rapids, Iowa | 1884 | sanborn02597_001 p11","metadata":[{"label":"streets","value":"4"},{"label":"intersections","value":"8"},{"label":"confidence","value":"0.70"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-20T03:14:02Z","modified":"2026-10-20T03:14:02Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154cm:g025971884:02597_1884-0011/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154cm:g025971884:02597_1884-0011","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"185.1,67.5 1183.5,33.8 1478.3,108.9 1495.9,1074.8 1554.2,1104.2 1488.8,1412.0 1536.5,1865.8 94.2,1814.3 94.2,119.2 185.1,67.5\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154cm:g025971884:02597_1884-0011/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[658.0,1223.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-91.673188,41.9742011]}},{"type":"Feature","properties":{"resourceCoords":[108.0,656.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-91.6750557,41.9746845]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154cm:g025971884:02597_1884-0002__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Cedar Rapids, Iowa | 1884 | sanborn02597_001 p2 [2]","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.78"},{"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":"1472.0"},{"label":"split_canvas_h","value":"1412.0"}],"created":"2026-10-20T03:14:02Z","modified":"2026-10-20T03:14:02Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154cm:g025971884:02597_1884-0002__2/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154cm:g025971884:02597_1884-0002","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"79.1,342.4 335.7,298.6 342.5,138.8 178.8,100.5 138.9,22.9 15.2,62.3 1.0,310.3 1.0,324.4 26.9,291.8 53.2,340.2 79.1,342.4\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154cm:g025971884:02597_1884-0002__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":[-91.66650033425847,41.984092965621635]}},{"type":"Feature","properties":{"resourceCoords":[368.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-91.66577754285143,41.98452279660047]}},{"type":"Feature","properties":{"resourceCoords":[368.0,353.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-91.66522674956902,41.98400378647324]}},{"type":"Feature","properties":{"resourceCoords":[0.0,353.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-91.66594954097606,41.9835739554944]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154cm:g025971884:02597_1884-0003__3/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Cedar Rapids, Iowa | 1884 | sanborn02597_001 p3 [3]","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":"5258.8"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"1193.2"},{"label":"split_canvas_h","value":"1484.0"}],"created":"2026-10-20T03:14:02Z","modified":"2026-10-20T03:14:02Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154cm:g025971884:02597_1884-0003__3/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154cm:g025971884:02597_1884-0003","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1477.5,364.4 1604.4,305.3 1601.3,138.9 1515.2,46.5 1370.8,55.9 1355.0,308.2 1477.5,364.4\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154cm:g025971884:02597_1884-0003__3/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[1314.7,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-91.66060559703577,41.98038820106152]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-91.6600143715536,41.98072185824923]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,371.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-91.65946136286381,41.980172662564726]}},{"type":"Feature","properties":{"resourceCoords":[1314.7,371.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-91.66005258834599,41.97983900537701]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154cm:g025971884:02597_1884-0006/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Cedar Rapids, Iowa | 1884 | sanborn02597_001 p6","metadata":[{"label":"streets","value":"4"},{"label":"intersections","value":"9"},{"label":"confidence","value":"0.85"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-20T03:14:02Z","modified":"2026-10-20T03:14:02Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154cm:g025971884:02597_1884-0006/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154cm:g025971884:02597_1884-0006","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"931.0,1788.4 495.9,1783.7 430.9,1788.9 431.4,1765.3 52.4,1810.1 55.4,1449.3 145.1,1309.7 158.3,1092.7 56.1,895.6 102.0,213.2 242.1,67.1 1297.8,65.0 1534.3,111.6 1561.4,109.5 1561.5,327.7 1558.4,1265.2 1552.4,1817.5 1515.7,1805.5 1017.5,1839.7 1018.4,1792.4 931.0,1788.4\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154cm:g025971884:02597_1884-0006/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1002.0,1227.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-91.6669386,41.9770089]}},{"type":"Feature","properties":{"resourceCoords":[1552.0,1797.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-91.6649606,41.9767937]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154cm:g025971884:02597_1884-0007__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Cedar Rapids, Iowa | 1884 | sanborn02597_001 p7 [1]","metadata":[{"label":"streets","value":"4"},{"label":"intersections","value":"6"},{"label":"confidence","value":"0.85"},{"label":"confidence_provisional","value":"true"},{"label":"confidence_model","value":"corpus-v2"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"6452.0"},{"label":"split_canvas_h","value":"7652.0"}],"created":"2026-10-20T03:14:02Z","modified":"2026-10-20T03:14:02Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154cm:g025971884:02597_1884-0007__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154cm:g025971884:02597_1884-0007","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1212.9,1723.8 1213.1,1775.8 1442.5,1775.9 1445.2,1900.2 1567.9,1820.1 1605.3,1396.1 1546.3,897.6 1604.0,471.1 1573.1,112.1 903.1,29.6 110.2,92.0 110.4,309.6 107.8,1244.5 102.1,1795.4 310.9,1864.2 602.1,1862.5 683.0,1351.7 683.0,1347.3 683.7,1347.3 683.9,1346.0 1200.2,1346.0 1203.0,1351.2 1208.5,1351.3 1208.5,1361.4 1233.8,1408.1 1212.9,1649.5 1212.9,1723.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154cm:g025971884:02597_1884-0007__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1215.0,1207.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-91.6636086,41.9789195]}},{"type":"Feature","properties":{"resourceCoords":[108.0,1207.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-91.6658262,41.9776467]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154cm:g025971884:02597_1884-0007__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Cedar Rapids, Iowa | 1884 | sanborn02597_001 p7 [2]","metadata":[{"label":"streets","value":"2"},{"label":"intersections","value":"1"},{"label":"confidence","value":"0.83"},{"label":"confidence_provisional","value":"true"},{"label":"confidence_model","value":"corpus-v2"},{"label":"split_canvas_x","value":"2732.0"},{"label":"split_canvas_y","value":"5389.2"},{"label":"split_canvas_w","value":"2102.0"},{"label":"split_canvas_h","value":"2262.8"}],"created":"2026-10-20T03:14:02Z","modified":"2026-10-20T03:14:02Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154cm:g025971884:02597_1884-0007__2/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154cm:g025971884:02597_1884-0007","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1207.5,1557.0 1207.5,1431.5 977.3,1429.3 977.6,1377.2 967.2,1418.2 736.6,1374.1 687.8,1911.9 1204.6,1906.6 1185.2,1571.2 1207.5,1557.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154cm:g025971884:02597_1884-0007__2/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[683.0,1347.3],"type":"corner"},"geometry":{"type":"Point","coordinates":[-91.66344434642664,41.97785000610598]}},{"type":"Feature","properties":{"resourceCoords":[1208.5,1347.3],"type":"corner"},"geometry":{"type":"Point","coordinates":[-91.6624024725212,41.97845925942817]}},{"type":"Feature","properties":{"resourceCoords":[1208.5,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-91.66151829051624,41.977624837611266]}},{"type":"Feature","properties":{"resourceCoords":[683.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-91.66256016442169,41.97701558428908]}},{"type":"Feature","properties":{"resourceCoords":[977.3,1429.2],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-91.6627328,41.9780703]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154cm:g025971884:02597_1884-0008__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Cedar Rapids, Iowa | 1884 | sanborn02597_001 p8 [1]","metadata":[{"label":"streets","value":"5"},{"label":"intersections","value":"6"},{"label":"confidence","value":"0.47"},{"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":"4050.0"},{"label":"split_canvas_h","value":"4908.8"}],"created":"2026-10-20T03:14:02Z","modified":"2026-10-20T03:14:02Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154cm:g025971884:02597_1884-0008__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154cm:g025971884:02597_1884-0008","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"918.0,85.8 486.1,92.9 421.7,99.8 421.6,76.4 46.5,131.0 76.0,1076.7 92.2,1056.2 123.5,1077.6 129.4,1199.3 983.5,1204.1 985.5,136.3 1004.8,134.4 1004.5,87.4 918.0,85.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154cm:g025971884:02597_1884-0008__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[443.2,1196.2],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-91.6655239,41.9738698]}},{"type":"Feature","properties":{"resourceCoords":[985.5,87.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-91.6660738,41.9761672]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154cm:g025971884:02597_1884-0009__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Cedar Rapids, Iowa | 1884 | sanborn02597_001 p9 [1]","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":"6452.0"},{"label":"split_canvas_h","value":"7652.0"}],"created":"2026-10-20T03:14:02Z","modified":"2026-10-20T03:14:02Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154cm:g025971884:02597_1884-0009__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154cm:g025971884:02597_1884-0009","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1612.0,284.4 1604.4,278.5 1582.3,67.6 1483.4,28.2 1046.9,79.4 889.2,271.8 860.5,1219.2 62.0,1212.8 83.0,1820.0 227.0,1884.9 1484.7,1894.5 1578.8,1856.2 1608.5,1786.6 1608.2,1345.5 1611.3,1344.5 1606.7,631.1 1612.0,631.0 1612.0,284.4\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154cm:g025971884:02597_1884-0009__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1139.0,1170.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-91.6573553950888,41.969419143014456]}},{"type":"Feature","properties":{"resourceCoords":[571.0,1170.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-91.65847140819554,41.96877920440783]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154cm:g025971884:02597_1884-0009__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Cedar Rapids, Iowa | 1884 | sanborn02597_001 p9 [2]","metadata":[{"label":"streets","value":"3"},{"label":"intersections","value":"3"},{"label":"confidence","value":"0.05"},{"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":"3472.4"},{"label":"split_canvas_h","value":"4875.2"}],"created":"2026-10-20T03:14:02Z","modified":"2026-10-20T03:14:02Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154cm:g025971884:02597_1884-0009__2/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154cm:g025971884:02597_1884-0009","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"34.1,59.1 33.1,326.9 29.0,326.9 30.6,878.1 28.2,878.9 27.3,1211.0 66.5,1128.7 188.9,1173.7 485.2,1096.2 688.0,1203.7 832.1,1165.4 814.2,28.4 598.1,39.4 547.6,86.0 375.6,31.1 328.1,101.5 280.4,43.0 175.4,40.1 99.6,110.0 34.1,59.1\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154cm:g025971884:02597_1884-0009__2/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[621.1,326.9],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-91.6557519,41.9716005]}},{"type":"Feature","properties":{"resourceCoords":[90.0,326.9],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-91.6570985,41.9708227]}}]}}]}