{"id":"https://data.mapsnap.org/runs/v2.0/iiif/chronoscope/sanborn02804_003.main.iiif.json","type":"AnnotationPage","@context":["http://www.w3.org/ns/anno.jsonld"],"label":"Remsen, Iowa | 1941 | 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":"6"},{"label":"placed","value":"4"},{"label":"unplaced","value":"2"},{"label":"fit sources","value":"georef 3, georef-snap 1"},{"label":"key map","value":"none"},{"label":"split sheets","value":"1 sheet(s) cut into 4 panels"},{"label":"unplaced pages","value":"p1__1 (tier 4, 42.81391,-95.97224 +/-327m); p1__3 (tier 4, 42.81391,-95.97224 +/-327m)"}],"items":[{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154rm:g028041941:02804_1941-0001__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Remsen, Iowa | 1941 | sanborn02804_003 p1 [2]","metadata":[{"label":"streets","value":"12"},{"label":"intersections","value":"25"},{"label":"confidence","value":"0.87"},{"label":"confidence_provisional","value":"true"},{"label":"confidence_model","value":"corpus-v2"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"1548.0"},{"label":"split_canvas_w","value":"6452.0"},{"label":"split_canvas_h","value":"6104.0"}],"created":"2026-10-19T17:12:53Z","modified":"2026-10-19T17:12:53Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154rm:g028041941:02804_1941-0001__2/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154rm:g028041941:02804_1941-0001","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"29.2,1677.2 89.0,1714.4 89.0,1709.0 400.5,1709.1 405.9,1709.1 425.7,1422.5 382.4,1422.5 523.5,1224.0 870.6,1102.5 961.3,1207.0 998.9,1207.0 999.5,1207.0 999.5,1251.0 1064.2,1325.5 1060.5,1710.2 1489.8,1712.0 1502.3,1712.1 1491.6,1426.7 1494.9,1426.7 1524.0,1139.9 1527.1,1146.6 1560.5,1103.2 1541.8,1105.5 1554.8,551.5 1384.2,525.3 1030.0,530.8 999.0,522.3 999.0,518.8 999.1,510.3 878.0,430.6 694.8,433.6 628.0,619.4 628.0,626.5 625.5,626.5 624.6,629.0 383.5,684.3 372.2,889.9 347.0,928.0 347.0,937.5 340.7,937.5 325.6,960.3 105.9,978.5 48.3,1265.5 61.9,1426.7 29.2,1677.2\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154rm:g028041941:02804_1941-0001__2/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1348.0,1426.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-95.9705967,42.8146404]}},{"type":"Feature","properties":{"resourceCoords":[89.0,1709.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-95.9769335,42.813675]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154rm:g028041941:02804_1941-0001__4/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Remsen, Iowa | 1941 | sanborn02804_003 p1 [4]","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.59"},{"label":"confidence_provisional","value":"true"},{"label":"confidence_model","value":"corpus-v2"},{"label":"split_canvas_x","value":"2050.0"},{"label":"split_canvas_y","value":"4828.0"},{"label":"split_canvas_w","value":"1948.0"},{"label":"split_canvas_h","value":"2824.0"}],"created":"2026-10-19T17:12:53Z","modified":"2026-10-19T17:12:53Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154rm:g028041941:02804_1941-0001__4/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154rm:g028041941:02804_1941-0001","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"934.2,1912.0 913.6,1834.0 969.8,1817.1 972.1,1271.4 944.4,1230.6 864.7,1221.7 661.8,1248.6 628.0,1293.9 624.6,1287.0 598.8,1583.7 595.5,1583.8 610.7,1878.3 738.7,1877.1 860.5,1873.3 883.0,1877.8 916.8,1908.3 934.2,1912.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154rm:g028041941:02804_1941-0001__4/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[737.0,1862.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-95.96922918678989,42.81362311949067]}},{"type":"Feature","properties":{"resourceCoords":[737.0,1313.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-95.96914792780187,42.815577672692356]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154rm:g028041941:02804_1941-0002/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Remsen, Iowa | 1941 | sanborn02804_003 p2","metadata":[{"label":"streets","value":"8"},{"label":"intersections","value":"22"},{"label":"confidence","value":"0.92"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-19T17:12:53Z","modified":"2026-10-19T17:12:53Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154rm:g028041941:02804_1941-0002/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154rm:g028041941:02804_1941-0002","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1457.3,1447.7 934.9,1631.2 934.0,1691.2 419.5,1519.7 420.0,1291.0 151.1,1291.0 190.5,719.1 104.2,719.0 385.6,322.8 1078.2,80.3 1259.2,288.7 1335.5,288.7 1335.5,376.5 1464.7,525.1 1457.5,1293.0 1457.3,1447.7\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154rm:g028041941:02804_1941-0002/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[420.0,1291.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-95.9746686,42.8136474]}},{"type":"Feature","properties":{"resourceCoords":[940.0,1291.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-95.9733619,42.8136315]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154rm:g028041941:02804_1941-0003/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Remsen, Iowa | 1941 | sanborn02804_003 p3","metadata":[{"label":"streets","value":"15"},{"label":"intersections","value":"34"},{"label":"confidence","value":"0.98"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-19T17:12:53Z","modified":"2026-10-19T17:12:53Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154rm:g028041941:02804_1941-0003/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154rm:g028041941:02804_1941-0003","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"101.1,1781.0 95.6,1781.0 94.4,1467.4 93.9,1326.3 209.3,1326.2 294.8,1066.3 264.6,1066.0 171.0,802.9 92.9,803.0 93.0,370.9 93.0,233.3 90.6,114.3 95.2,92.4 125.2,59.6 129.0,42.7 210.7,21.9 421.0,17.7 872.0,45.4 1200.2,31.4 1289.9,84.9 1499.9,65.8 1509.1,154.2 1549.8,157.1 1575.6,518.4 1575.0,1762.4 1551.3,1866.2 1005.1,1873.7 964.0,1845.0 702.6,1879.8 439.3,1822.5 189.0,1857.1 63.9,1841.2 101.1,1781.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154rm:g028041941:02804_1941-0003/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[665.0,1778.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-95.9769764,42.811594]}},{"type":"Feature","properties":{"resourceCoords":[93.0,517.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-95.9706367,42.8135905]}}]}}]}