{"id":"https://data.mapsnap.org/runs/v2.0/iiif/chronoscope/sanborn01662_005.main.iiif.json","type":"AnnotationPage","@context":["http://www.w3.org/ns/anno.jsonld"],"label":"Rexburg, Idaho | 1921 | mapsnap generated fit (2026-10-19)","creator":{"type":"Software","name":"mapsnap","homepage":"https://mapsnap.org"},"rights":"https://opendatacommons.org/licenses/odbl/1-0/","metadata":[{"label":"generated","value":"2026-10-19"},{"label":"run","value":"corpus-v2"},{"label":"pages","value":"20"},{"label":"placed","value":"15"},{"label":"unplaced","value":"5"},{"label":"fit sources","value":"georef-snap 8, georef 6, snap:0 1"},{"label":"key map","value":"georeferenced"},{"label":"split sheets","value":"3 sheet(s) cut into 7 panels"},{"label":"unplaced pages","value":"p10 (tier 1, 43.83013,-111.78595 +/-253m); p14__1 (tier 1, 43.83058,-111.78937 +/-100m); p14__2 (tier 1, 43.83021,-111.79137 +/-127m); p16__2 (tier 1, 43.82423,-111.78705 +/-100m); p16__3 (tier 1, 43.82424,-111.78915 +/-100m)"}],"items":[{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd427m:g4274m:g4274rm:g016621921:01662_1921-0011/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Rexburg, Idaho | 1921 | sanborn01662_005 p11","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.90"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-19T17:31:05Z","modified":"2026-10-19T17:31:05Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd427m:g4274m:g4274rm:g016621921:01662_1921-0011/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd427m:g4274m:g4274rm:g016621921:01662_1921-0011","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1583.3,50.2 1203.9,44.6 385.0,51.3 1.0,51.1 1.0,85.3 49.2,86.2 37.3,1813.5 453.6,1819.8 451.6,1799.8 1588.0,1821.1 1588.0,1803.0 1586.4,1203.7 1586.3,1148.3 1583.3,50.2\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd427m:g4274m:g4274rm:g016621921:01662_1921-0011/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[462.0,1144.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-111.78668268046432,43.82818151191237]}},{"type":"Feature","properties":{"resourceCoords":[1563.0,1144.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-111.78668649775673,43.82610421932539]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd427m:g4274m:g4274rm:g016621921:01662_1921-0012/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Rexburg, Idaho | 1921 | sanborn01662_005 p12","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.93"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-19T17:31:05Z","modified":"2026-10-19T17:31:05Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd427m:g4274m:g4274rm:g016621921:01662_1921-0012/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd427m:g4274m:g4274rm:g016621921:01662_1921-0012","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1586.0,132.7 1580.8,684.1 1583.0,684.1 1593.0,1813.5 1505.8,1814.2 1196.0,1809.1 1196.0,1844.5 47.6,1848.9 47.5,1815.4 41.7,693.5 38.9,136.8 655.7,131.3 1245.7,132.3 1586.0,132.7\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd427m:g4274m:g4274rm:g016621921:01662_1921-0012/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[69.0,114.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-111.78234270893869,43.82600877223635]}},{"type":"Feature","properties":{"resourceCoords":[73.0,1816.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-111.78669981953033,43.826013166110606]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd427m:g4274m:g4274rm:g016621921:01662_1921-0013/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Rexburg, Idaho | 1921 | sanborn01662_005 p13","metadata":[{"label":"streets","value":"3"},{"label":"intersections","value":"3"},{"label":"confidence","value":"0.81"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-19T17:31:05Z","modified":"2026-10-19T17:31:05Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd427m:g4274m:g4274rm:g016621921:01662_1921-0013/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd427m:g4274m:g4274rm:g016621921:01662_1921-0013","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1591.2,1311.0 1608.0,1887.7 761.9,1873.0 424.2,1878.8 32.6,1882.0 23.0,736.4 20.7,736.4 26.2,177.0 569.0,177.7 760.0,178.5 1599.0,114.5 1591.2,1311.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd427m:g4274m:g4274rm:g016621921:01662_1921-0013/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[760.0,738.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-111.783827,43.8218746]}},{"type":"Feature","properties":{"resourceCoords":[760.0,178.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-111.7824138,43.8218712]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd427m:g4274m:g4274rm:g016621921:01662_1921-0015/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Rexburg, Idaho | 1921 | sanborn01662_005 p15","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.90"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-19T17:31:05Z","modified":"2026-10-19T17:31:05Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd427m:g4274m:g4274rm:g016621921:01662_1921-0015/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd427m:g4274m:g4274rm:g016621921:01662_1921-0015","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1612.0,1274.6 1612.0,1408.1 1608.7,1884.8 228.0,1898.7 43.1,1851.9 31.1,121.3 443.5,121.8 441.2,102.1 1566.8,107.5 1570.4,321.0 1584.5,1274.2 1612.0,1274.6\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd427m:g4274m:g4274rm:g016621921:01662_1921-0015/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[463.0,538.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-111.78954972252416,43.828173833457505]}},{"type":"Feature","properties":{"resourceCoords":[1574.0,538.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-111.78959433223396,43.826057476336715]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd427m:g4274m:g4274rm:g016621921:01662_1921-0016__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Rexburg, Idaho | 1921 | sanborn01662_005 p16 [1]","metadata":[{"label":"streets","value":"2"},{"label":"intersections","value":"2"},{"label":"confidence","value":"0.88"},{"label":"confidence_provisional","value":"true"},{"label":"confidence_model","value":"corpus-v2"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"6452.0"},{"label":"split_canvas_h","value":"7652.0"}],"created":"2026-10-19T17:31:05Z","modified":"2026-10-19T17:31:05Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd427m:g4274m:g4274rm:g016621921:01662_1921-0016__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd427m:g4274m:g4274rm:g016621921:01662_1921-0016","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1531.0,30.9 1221.9,24.0 1221.7,59.4 75.6,57.3 75.5,80.2 75.2,691.6 75.1,930.1 72.9,1912.0 98.4,1912.0 102.2,1912.0 102.8,1884.9 438.1,1892.8 642.4,1820.3 809.9,1886.2 1159.8,1879.6 1213.8,1225.8 1214.4,1161.0 1219.2,1161.0 1219.5,1157.6 1612.0,1158.4 1589.7,1149.5 1588.2,30.7 1531.0,30.9\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd427m:g4274m:g4274rm:g016621921:01662_1921-0016__1/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-111.78663720539069,43.82620026062101]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-111.78662950352708,43.823215277316216]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-111.7915337519736,43.823208683657384]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-111.79154145383721,43.826193666962176]}},{"type":"Feature","properties":{"resourceCoords":[75.0,1151.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-111.7895876,43.8260575]}},{"type":"Feature","properties":{"resourceCoords":[75.0,1151.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-111.7895876,43.8260575]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd427m:g4274m:g4274rm:g016621921:01662_1921-0017__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Rexburg, Idaho | 1921 | sanborn01662_005 p17 [1]","metadata":[{"label":"streets","value":"3"},{"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":"4588.0"},{"label":"split_canvas_w","value":"6452.0"},{"label":"split_canvas_h","value":"3064.0"}],"created":"2026-10-19T17:31:05Z","modified":"2026-10-19T17:31:05Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd427m:g4274m:g4274rm:g016621921:01662_1921-0017__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd427m:g4274m:g4274rm:g016621921:01662_1921-0017","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"61.1,1231.1 61.3,1272.9 92.4,1293.4 96.6,1370.2 27.4,1468.0 63.1,1500.3 20.8,1537.7 35.9,1781.4 67.2,1822.2 50.1,1837.0 85.2,1892.5 1554.7,1906.3 1580.7,1516.2 1558.3,1476.0 1587.4,1460.5 1549.4,1245.0 1336.8,1209.4 1336.8,1201.5 802.6,1217.7 802.5,1209.7 268.1,1203.8 268.5,1230.0 1.0,1227.2 1.0,1230.8 61.1,1231.1\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd427m:g4274m:g4274rm:g016621921:01662_1921-0017__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[804.0,1514.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-111.779512,43.8197828]}},{"type":"Feature","properties":{"resourceCoords":[1337.0,1514.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-111.778081,43.8197778]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd427m:g4274m:g4274rm:g016621921:01662_1921-0017__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Rexburg, Idaho | 1921 | sanborn01662_005 p17 [2]","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.80"},{"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":"4588.0"}],"created":"2026-10-19T17:31:05Z","modified":"2026-10-19T17:31:05Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd427m:g4274m:g4274rm:g016621921:01662_1921-0017__2/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd427m:g4274m:g4274rm:g016621921:01662_1921-0017","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"63.5,1132.2 1590.5,1135.7 1565.0,51.0 762.0,32.5 441.4,36.1 41.0,37.2 41.9,1123.5 63.5,1132.2\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd427m:g4274m:g4274rm:g016621921:01662_1921-0017__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":[-111.78661039342371,43.82333999760533]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-111.78660045290474,43.82024575021544]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,1147.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-111.7896287517004,43.820240614233725]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1147.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-111.78963869221938,43.823334861623614]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd427m:g4274m:g4274rm:g016621921:01662_1921-0002/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Rexburg, Idaho | 1921 | sanborn01662_005 p2","metadata":[{"label":"streets","value":"2"},{"label":"intersections","value":"1"},{"label":"confidence","value":"0.62"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-19T17:31:05Z","modified":"2026-10-19T17:31:05Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd427m:g4274m:g4274rm:g016621921:01662_1921-0002/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd427m:g4274m:g4274rm:g016621921:01662_1921-0002","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1549.6,233.8 1575.1,234.4 1561.3,1363.1 1580.8,1363.6 1533.0,1869.4 801.1,1841.7 800.9,1848.6 84.5,1832.4 82.3,1912.0 80.9,1912.0 37.1,1880.7 89.8,1539.1 14.4,1354.8 19.3,56.2 625.8,6.4 1529.0,44.7 1544.8,1.3 1581.4,20.9 1549.6,233.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd427m:g4274m:g4274rm:g016621921:01662_1921-0002/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-111.7746850527288,43.831842514603125]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-111.77457663751052,43.82885855220405]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-111.779479208636,43.82876573662103]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-111.77958762385428,43.8317496990201]}},{"type":"Feature","properties":{"resourceCoords":[811.0,1344.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-111.7780749,43.830277]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd427m:g4274m:g4274rm:g016621921:01662_1921-0003/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Rexburg, Idaho | 1921 | sanborn01662_005 p3","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.82"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-19T17:31:05Z","modified":"2026-10-19T17:31:05Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd427m:g4274m:g4274rm:g016621921:01662_1921-0003/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd427m:g4274m:g4274rm:g016621921:01662_1921-0003","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1580.1,1814.2 1578.1,1322.5 1612.0,1263.8 1612.0,300.9 1612.0,223.2 1592.0,223.3 1581.3,1.0 1572.2,1.0 1502.3,58.5 1060.4,16.9 782.7,81.8 583.0,25.4 105.7,33.8 70.7,16.4 45.6,225.2 70.6,225.1 89.0,1327.7 108.1,1327.6 75.7,1822.8 452.1,1826.1 452.2,1849.6 1580.2,1840.7 1580.1,1814.2\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd427m:g4274m:g4274rm:g016621921:01662_1921-0003/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[430.0,1303.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-111.77801118583952,43.82824228919513]}},{"type":"Feature","properties":{"resourceCoords":[1556.0,239.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-111.77522695715804,43.826105113203866]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd427m:g4274m:g4274rm:g016621921:01662_1921-0004/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Rexburg, Idaho | 1921 | sanborn01662_005 p4","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.70"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-19T17:31:05Z","modified":"2026-10-19T17:31:05Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd427m:g4274m:g4274rm:g016621921:01662_1921-0004/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd427m:g4274m:g4274rm:g016621921:01662_1921-0004","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"90.7,1820.1 94.7,778.0 74.7,778.0 64.8,554.3 57.0,554.2 57.5,77.4 193.2,20.5 1099.5,28.7 1142.3,71.5 1492.0,14.8 1607.5,88.9 1582.8,783.8 1580.7,783.8 1584.0,1328.8 1571.1,1328.8 1587.9,1876.4 1225.4,1876.6 687.6,1877.2 133.6,1881.0 56.6,1878.8 90.7,1820.1\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd427m:g4274m:g4274rm:g016621921:01662_1921-0004/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[81.0,757.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-111.77513099653257,43.826025015624744]}},{"type":"Feature","properties":{"resourceCoords":[1178.0,1863.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-111.7780254107855,43.82394904599282]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd427m:g4274m:g4274rm:g016621921:01662_1921-0005/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Rexburg, Idaho | 1921 | sanborn01662_005 p5","metadata":[{"label":"streets","value":"4"},{"label":"intersections","value":"3"},{"label":"confidence","value":"0.82"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-19T17:31:05Z","modified":"2026-10-19T17:31:05Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd427m:g4274m:g4274rm:g016621921:01662_1921-0005/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd427m:g4274m:g4274rm:g016621921:01662_1921-0005","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1037.0,1847.7 129.4,1842.2 47.1,1842.3 29.4,1278.8 42.7,1278.8 38.9,718.0 41.1,718.0 65.9,3.1 130.6,44.5 1606.5,23.1 1583.8,1631.2 1612.0,1633.9 1574.7,1850.2 1037.0,1847.7\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd427m:g4274m:g4274rm:g016621921:01662_1921-0005/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[762.0,718.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-111.7751957,43.8218617]}},{"type":"Feature","properties":{"resourceCoords":[762.0,1846.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-111.778068,43.8218608]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd427m:g4274m:g4274rm:g016621921:01662_1921-0006/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Rexburg, Idaho | 1921 | sanborn01662_005 p6","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.81"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-19T17:31:05Z","modified":"2026-10-19T17:31:05Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd427m:g4274m:g4274rm:g016621921:01662_1921-0006/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd427m:g4274m:g4274rm:g016621921:01662_1921-0006","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1407.9,1885.3 1407.9,1849.8 1569.6,1850.0 1556.8,707.3 1567.3,707.3 1542.3,77.1 732.5,68.3 732.5,75.3 1.0,78.4 1.0,165.9 49.8,203.4 20.4,792.0 95.2,1276.3 28.5,1857.5 1407.9,1885.3\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd427m:g4274m:g4274rm:g016621921:01662_1921-0006/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[744.0,716.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-111.78097664304404,43.83025111989454]}},{"type":"Feature","properties":{"resourceCoords":[744.0,1844.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-111.78380745176825,43.8302524171344]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd427m:g4274m:g4274rm:g016621921:01662_1921-0007/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Rexburg, Idaho | 1921 | sanborn01662_005 p7","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.91"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-19T17:31:05Z","modified":"2026-10-19T17:31:05Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd427m:g4274m:g4274rm:g016621921:01662_1921-0007/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd427m:g4274m:g4274rm:g016621921:01662_1921-0007","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1532.9,1836.2 1144.5,1824.4 306.0,1818.2 70.7,1814.5 74.8,683.8 85.2,683.9 69.9,60.0 396.5,68.5 396.3,92.8 1555.2,103.2 1548.5,629.6 1540.1,1274.3 1532.9,1836.2\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd427m:g4274m:g4274rm:g016621921:01662_1921-0007/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-111.77922481789398,43.82893551548352]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-111.77916658951982,43.82596375165687]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-111.78401777019624,43.82591357950692]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-111.7840759985704,43.82888534333357]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd427m:g4274m:g4274rm:g016621921:01662_1921-0008/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Rexburg, Idaho | 1921 | sanborn01662_005 p8","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.96"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-19T17:31:05Z","modified":"2026-10-19T17:31:05Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd427m:g4274m:g4274rm:g016621921:01662_1921-0008/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd427m:g4274m:g4274rm:g016621921:01662_1921-0008","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"667.5,1803.5 52.5,1811.2 47.0,1174.3 42.2,627.3 37.9,124.7 116.5,126.1 681.7,117.4 1230.5,112.2 1562.5,109.2 1590.6,1238.9 1594.0,1239.0 1585.6,1801.5 1255.7,1802.4 667.5,1803.5\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd427m:g4274m:g4274rm:g016621921:01662_1921-0008/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1176.0,1810.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-111.78241891080081,43.82398350906737]}},{"type":"Feature","properties":{"resourceCoords":[1175.0,98.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-111.77802339514585,43.82396201599317]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd427m:g4274m:g4274rm:g016621921:01662_1921-0009/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Rexburg, Idaho | 1921 | sanborn01662_005 p9","metadata":[{"label":"streets","value":"5"},{"label":"intersections","value":"4"},{"label":"confidence","value":"0.91"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-19T17:31:05Z","modified":"2026-10-19T17:31:05Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd427m:g4274m:g4274rm:g016621921:01662_1921-0009/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd427m:g4274m:g4274rm:g016621921:01662_1921-0009","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1609.5,1772.7 1604.5,1773.0 773.0,1836.5 582.6,1835.7 31.8,1835.0 42.7,1264.3 39.2,1264.2 15.3,118.2 136.6,117.5 1049.7,119.7 1582.1,120.1 1598.5,686.8 1590.0,686.8 1582.9,1253.7 1610.7,1253.3 1607.3,1538.1 1611.1,1538.2 1609.5,1772.7\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd427m:g4274m:g4274rm:g016621921:01662_1921-0009/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[773.0,1836.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-111.7824138,43.8218712]}},{"type":"Feature","properties":{"resourceCoords":[773.0,119.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-111.778068,43.8218608]}}]}}]}