{"id":"https://data.mapsnap.org/runs/v2.0/iiif/chronoscope/sanborn02737_001.main.iiif.json","type":"AnnotationPage","@context":["http://www.w3.org/ns/anno.jsonld"],"label":"Maquoketa, Iowa | 1886 | 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":"10"},{"label":"placed","value":"6"},{"label":"unplaced","value":"4"},{"label":"fit sources","value":"georef 3, georef-snap 3"},{"label":"key map","value":"none"},{"label":"split sheets","value":"3 sheet(s) cut into 9 panels"},{"label":"unplaced pages","value":"p1__1 (tier 4, 42.06825,-90.66497 +/-547m); p1__2 (tier 1, 42.07402,-90.66948 +/-100m); p1__4 (tier 4, 42.06825,-90.66497 +/-547m); p4__3 (tier 1, 42.07430,-90.66143 +/-103m)"}],"items":[{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154mm:g027371886:02737_1886-0001__3/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Maquoketa, Iowa | 1886 | sanborn02737_001 p1 [3]","metadata":[{"label":"streets","value":"3"},{"label":"intersections","value":"3"},{"label":"confidence","value":"0.79"},{"label":"confidence_provisional","value":"true"},{"label":"confidence_model","value":"corpus-v2"},{"label":"split_canvas_x","value":"2034.8"},{"label":"split_canvas_y","value":"5374.4"},{"label":"split_canvas_w","value":"2181.2"},{"label":"split_canvas_h","value":"2277.6"}],"created":"2026-10-18T17:21:57Z","modified":"2026-10-18T17:21:57Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154mm:g027371886:02737_1886-0001__3/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154mm:g027371886:02737_1886-0001","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1053.0,1659.9 1050.2,1659.8 1013.4,1396.5 923.2,1396.3 915.5,1448.9 817.9,1426.0 810.6,1358.3 607.6,1365.2 512.6,1668.9 718.5,1787.4 718.4,1815.7 1053.0,1695.1 1053.0,1659.9\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154mm:g027371886:02737_1886-0001__3/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[718.4,1809.1],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-90.6655169,42.0703025]}},{"type":"Feature","properties":{"resourceCoords":[718.4,1436.5],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-90.6655197,42.0709711]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154mm:g027371886:02737_1886-0002/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Maquoketa, Iowa | 1886 | sanborn02737_001 p2","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.97"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T17:21:57Z","modified":"2026-10-18T17:21:57Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154mm:g027371886:02737_1886-0002/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154mm:g027371886:02737_1886-0002","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"55.8,1646.5 62.9,998.5 51.4,995.0 166.8,792.9 194.5,792.8 75.2,465.4 40.8,465.2 62.6,55.9 1425.0,26.0 1575.4,40.2 1577.6,309.7 1578.3,788.1 1581.2,1323.3 1585.4,1797.3 1572.9,1793.3 1536.1,1881.7 843.9,1881.9 793.8,1912.0 788.3,1729.7 740.5,1728.9 196.2,1737.9 89.5,1738.0 55.8,1646.5\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154mm:g027371886:02737_1886-0002/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[764.0,790.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-90.66551045761595,42.06924744086096]}},{"type":"Feature","properties":{"resourceCoords":[764.0,307.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-90.66431859112548,42.069247118782044]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154mm:g027371886:02737_1886-0003__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Maquoketa, Iowa | 1886 | sanborn02737_001 p3 [1]","metadata":[{"label":"streets","value":"4"},{"label":"intersections","value":"4"},{"label":"confidence","value":"0.62"},{"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":"3109.2"},{"label":"split_canvas_h","value":"7652.0"}],"created":"2026-10-18T17:21:57Z","modified":"2026-10-18T17:21:57Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154mm:g027371886:02737_1886-0003__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154mm:g027371886:02737_1886-0003","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"95.2,36.7 97.0,311.0 97.0,798.0 99.1,1342.8 102.6,1825.4 277.2,1881.5 719.7,1837.0 757.9,1327.3 691.9,135.3 392.0,45.0 107.0,89.6 95.2,36.7\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154mm:g027371886:02737_1886-0003__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[97.0,798.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-90.6655065,42.0677557]}},{"type":"Feature","properties":{"resourceCoords":[97.0,311.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-90.664326,42.0677568]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154mm:g027371886:02737_1886-0003__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Maquoketa, Iowa | 1886 | sanborn02737_001 p3 [2]","metadata":[{"label":"streets","value":"5"},{"label":"intersections","value":"8"},{"label":"confidence","value":"0.90"},{"label":"confidence_provisional","value":"true"},{"label":"confidence_model","value":"corpus-v2"},{"label":"split_canvas_x","value":"3108.8"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"3343.2"},{"label":"split_canvas_h","value":"7652.0"}],"created":"2026-10-18T17:21:57Z","modified":"2026-10-18T17:21:57Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154mm:g027371886:02737_1886-0003__2/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154mm:g027371886:02737_1886-0003","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1574.7,1842.5 1612.0,1239.5 1531.9,652.5 1581.0,446.2 1518.8,138.2 1429.3,29.0 901.2,108.5 857.8,160.4 852.4,1637.5 898.3,1798.7 1023.8,1856.0 1362.2,1889.0 1574.7,1842.5\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154mm:g027371886:02737_1886-0003__2/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1243.1,1691.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-90.6617699,42.069222]}},{"type":"Feature","properties":{"resourceCoords":[1243.1,261.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-90.6582338,42.0691924]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154mm:g027371886:02737_1886-0004__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Maquoketa, Iowa | 1886 | sanborn02737_001 p4 [1]","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.77"},{"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":"5080.0"}],"created":"2026-10-18T17:21:57Z","modified":"2026-10-18T17:21:57Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154mm:g027371886:02737_1886-0004__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154mm:g027371886:02737_1886-0004","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1569.9,1197.9 1592.6,337.0 1579.4,183.6 1507.2,102.7 1332.7,42.6 887.0,96.8 245.5,32.5 84.5,89.3 30.7,1154.2 81.2,1213.1 1510.9,1263.0 1569.9,1197.9\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154mm:g027371886:02737_1886-0004__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1555.0,1146.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-90.665459408388,42.0619807584226]}},{"type":"Feature","properties":{"resourceCoords":[110.0,115.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-90.66292581983211,42.06467004591873]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154mm:g027371886:02737_1886-0004__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Maquoketa, Iowa | 1886 | sanborn02737_001 p4 [2]","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":"5025.6"},{"label":"split_canvas_w","value":"3357.2"},{"label":"split_canvas_h","value":"2626.4"}],"created":"2026-10-18T17:21:57Z","modified":"2026-10-18T17:21:57Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154mm:g027371886:02737_1886-0004__2/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154mm:g027371886:02737_1886-0004","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"359.1,1912.0 360.5,1912.0 515.8,1824.0 768.1,1862.5 818.7,1676.1 761.3,1507.9 762.8,1328.6 715.9,1326.0 180.3,1314.3 75.4,1310.4 91.2,1358.7 46.9,1378.8 36.7,1646.4 145.7,1831.6 108.1,1866.4 359.1,1912.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154mm:g027371886:02737_1886-0004__2/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[754.3,1787.1],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-90.66898022266302,42.069186949081654]}},{"type":"Feature","properties":{"resourceCoords":[181.1,1787.1],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-90.66903483170384,42.07025332915094]}}]}}]}