{"id":"https://data.mapsnap.org/runs/v2.0/iiif/chronoscope/sanborn02865_006.main.iiif.json","type":"AnnotationPage","@context":["http://www.w3.org/ns/anno.jsonld"],"label":"Webster City, Iowa | 1915 | 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":"23"},{"label":"placed","value":"16"},{"label":"unplaced","value":"7"},{"label":"fit sources","value":"georef-snap 9, georef 7"},{"label":"key map","value":"georeferenced"},{"label":"split sheets","value":"2 sheet(s) cut into 13 panels"},{"label":"unplaced pages","value":"p13__1 (tier 1, 42.46149,-93.82058 +/-120m); p13__10 (tier 2, 42.46676,-93.81934 +/-546m); p13__11 (tier 1, 42.46820,-93.83527 +/-178m); p13__3 (tier 1, 42.46791,-93.83540 +/-100m); p13__4 (tier 1, 42.46864,-93.84072 +/-100m); p13__5 (tier 1, 42.46742,-93.83579 +/-100m); p2 (tier 1, 42.47045,-93.82155 +/-259m)"}],"items":[{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154wm:g028651915:02865_1915-0010/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Webster City, Iowa | 1915 | sanborn02865_006 p10","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.95"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T22:53:12Z","modified":"2026-10-18T22:53:12Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154wm:g028651915:02865_1915-0010/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154wm:g028651915:02865_1915-0010","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1375.7,1906.6 1375.5,1887.1 1542.8,1882.6 1540.7,1005.8 1538.4,1.0 50.2,1.0 51.2,579.5 53.1,1610.5 53.7,1912.0 71.8,1912.0 135.2,1911.8 1375.7,1906.6\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154wm:g028651915:02865_1915-0010/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1038.0,1008.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-93.82637380510832,42.467598392888775]}},{"type":"Feature","properties":{"resourceCoords":[1038.0,1866.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-93.82858768421788,42.46762140880095]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154wm:g028651915:02865_1915-0011/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Webster City, Iowa | 1915 | sanborn02865_006 p11","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.95"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T22:53:12Z","modified":"2026-10-18T22:53:12Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154wm:g028651915:02865_1915-0011/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154wm:g028651915:02865_1915-0011","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"53.7,1888.1 1564.7,1859.7 1590.8,421.2 1539.2,21.7 1612.0,18.4 1612.0,1.0 64.1,1.0 58.5,1020.0 53.7,1888.1\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154wm:g028651915:02865_1915-0011/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[944.0,1016.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-93.82639041423629,42.464938707082204]}},{"type":"Feature","properties":{"resourceCoords":[944.0,1872.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-93.82862151866787,42.464948962440275]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154wm:g028651915:02865_1915-0012/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Webster City, Iowa | 1915 | sanborn02865_006 p12","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"8"},{"label":"confidence","value":"0.99"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T22:53:12Z","modified":"2026-10-18T22:53:12Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154wm:g028651915:02865_1915-0012/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154wm:g028651915:02865_1915-0012","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1544.5,526.8 1544.8,610.0 1550.8,1875.9 131.7,1889.5 29.5,1825.9 46.6,24.8 1442.4,26.1 1537.2,75.3 1544.5,526.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154wm:g028651915:02865_1915-0012/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[642.0,1535.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-93.83099,42.4676403]}},{"type":"Feature","properties":{"resourceCoords":[642.0,35.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-93.8309346,42.470438]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154wm:g028651915:02865_1915-0013__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Webster City, Iowa | 1915 | sanborn02865_006 p13 [2]","metadata":[{"label":"streets","value":"2"},{"label":"intersections","value":"1"},{"label":"confidence","value":"0.73"},{"label":"confidence_provisional","value":"true"},{"label":"confidence_model","value":"corpus-v2"},{"label":"split_canvas_x","value":"3236.8"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"1325.2"},{"label":"split_canvas_h","value":"1486.0"}],"created":"2026-10-18T22:53:12Z","modified":"2026-10-18T22:53:12Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154wm:g028651915:02865_1915-0013__2/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154wm:g028651915:02865_1915-0013","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1023.1,362.8 1072.7,312.6 1123.0,354.9 1120.2,27.9 1013.1,21.6 1013.6,78.5 928.5,136.1 828.5,129.8 823.1,336.0 1023.1,362.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154wm:g028651915:02865_1915-0013__2/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[809.2,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-93.8361256496852,42.4686965279188]}},{"type":"Feature","properties":{"resourceCoords":[1140.5,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-93.83527645516767,42.46869126894637]}},{"type":"Feature","properties":{"resourceCoords":[1140.5,371.5],"type":"corner"},"geometry":{"type":"Point","coordinates":[-93.83528445711279,42.46798634478087]}},{"type":"Feature","properties":{"resourceCoords":[809.2,371.5],"type":"corner"},"geometry":{"type":"Point","coordinates":[-93.83613365163032,42.4679916037533]}},{"type":"Feature","properties":{"resourceCoords":[1107.5,41.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-93.835362,42.4686141]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154wm:g028651915:02865_1915-0013__6/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Webster City, Iowa | 1915 | sanborn02865_006 p13 [6]","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"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":"2972.0"},{"label":"split_canvas_w","value":"2093.6"},{"label":"split_canvas_h","value":"1358.0"}],"created":"2026-10-18T22:53:12Z","modified":"2026-10-18T22:53:12Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154wm:g028651915:02865_1915-0013__6/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154wm:g028651915:02865_1915-0013","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"465.4,1058.1 472.4,1042.2 372.3,1005.0 360.6,826.8 303.8,783.1 145.4,787.9 84.3,1022.0 5.0,1035.1 40.7,1046.6 465.4,1058.1\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154wm:g028651915:02865_1915-0013__6/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,743.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-93.82257081831389,42.46040978086072]}},{"type":"Feature","properties":{"resourceCoords":[523.4,743.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-93.82123988486391,42.46042484826238]}},{"type":"Feature","properties":{"resourceCoords":[523.4,1082.5],"type":"corner"},"geometry":{"type":"Point","coordinates":[-93.82122670031728,42.45978203628324]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1082.5],"type":"corner"},"geometry":{"type":"Point","coordinates":[-93.82255763376726,42.45976696888158]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154wm:g028651915:02865_1915-0013__7/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Webster City, Iowa | 1915 | sanborn02865_006 p13 [7]","metadata":[{"label":"streets","value":"2"},{"label":"intersections","value":"1"},{"label":"confidence","value":"0.61"},{"label":"confidence_provisional","value":"true"},{"label":"confidence_model","value":"corpus-v2"},{"label":"split_canvas_x","value":"2076.4"},{"label":"split_canvas_y","value":"2972.0"},{"label":"split_canvas_w","value":"1913.6"},{"label":"split_canvas_h","value":"2008.0"}],"created":"2026-10-18T22:53:12Z","modified":"2026-10-18T22:53:12Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154wm:g028651915:02865_1915-0013__7/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154wm:g028651915:02865_1915-0013","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"996.5,776.9 575.9,778.7 633.2,795.2 591.9,881.4 541.8,867.9 580.8,1073.8 547.0,1188.2 916.8,1160.8 904.2,826.5 968.6,846.8 996.5,776.9\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154wm:g028651915:02865_1915-0013__7/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[519.1,743.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-93.82259980717629,42.45990542720169]}},{"type":"Feature","properties":{"resourceCoords":[997.5,743.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-93.82137103077359,42.45989070830981]}},{"type":"Feature","properties":{"resourceCoords":[997.5,1245.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-93.82139191522386,42.45893953131593]}},{"type":"Feature","properties":{"resourceCoords":[519.1,1245.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-93.82262069162655,42.45895425020781]}},{"type":"Feature","properties":{"resourceCoords":[964.5,777.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-93.8214571,42.4598273]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154wm:g028651915:02865_1915-0013__8/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Webster City, Iowa | 1915 | sanborn02865_006 p13 [8]","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":"3990.0"},{"label":"split_canvas_y","value":"2972.0"},{"label":"split_canvas_w","value":"2462.0"},{"label":"split_canvas_h","value":"1406.0"}],"created":"2026-10-18T22:53:12Z","modified":"2026-10-18T22:53:12Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154wm:g028651915:02865_1915-0013__8/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154wm:g028651915:02865_1915-0013","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1038.3,745.1 1021.2,796.0 1036.5,1088.2 1549.3,1093.3 1584.2,900.8 1540.7,781.2 1078.1,777.4 1078.0,745.8 1038.3,745.1\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154wm:g028651915:02865_1915-0013__8/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[997.5,743.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-93.82156456092945,42.46198072362136]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,743.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-93.81998414255244,42.46197631752377]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,1094.5],"type":"corner"},"geometry":{"type":"Point","coordinates":[-93.8199875416235,42.4613111688241]}},{"type":"Feature","properties":{"resourceCoords":[997.5,1094.5],"type":"corner"},"geometry":{"type":"Point","coordinates":[-93.82156796000051,42.46131557492169]}},{"type":"Feature","properties":{"resourceCoords":[1038.5,777.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-93.8214597,42.461916]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154wm:g028651915:02865_1915-0013__9/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Webster City, Iowa | 1915 | sanborn02865_006 p13 [9]","metadata":[{"label":"streets","value":"2"},{"label":"intersections","value":"1"},{"label":"confidence","value":"0.68"},{"label":"confidence_provisional","value":"true"},{"label":"confidence_model","value":"corpus-v2"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"4317.6"},{"label":"split_canvas_w","value":"2082.0"},{"label":"split_canvas_h","value":"1500.4"}],"created":"2026-10-18T22:53:12Z","modified":"2026-10-18T22:53:12Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154wm:g028651915:02865_1915-0013__9/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154wm:g028651915:02865_1915-0013","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"60.9,1119.2 61.2,1181.2 86.8,1343.0 272.1,1428.1 492.9,1441.8 449.9,1306.7 499.4,1135.7 271.6,1200.2 60.9,1119.2\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154wm:g028651915:02865_1915-0013__9/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,1079.4],"type":"corner"},"geometry":{"type":"Point","coordinates":[-93.81475851345834,42.46495668238216]}},{"type":"Feature","properties":{"resourceCoords":[520.5,1079.4],"type":"corner"},"geometry":{"type":"Point","coordinates":[-93.81342182194817,42.464954578429406]}},{"type":"Feature","properties":{"resourceCoords":[520.5,1454.5],"type":"corner"},"geometry":{"type":"Point","coordinates":[-93.81342387220967,42.464243946028176]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1454.5],"type":"corner"},"geometry":{"type":"Point","coordinates":[-93.81476056371984,42.46424604998093]}},{"type":"Feature","properties":{"resourceCoords":[61.0,1132.4],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-93.8146023,42.464856]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154wm:g028651915:02865_1915-0003/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Webster City, Iowa | 1915 | sanborn02865_006 p3","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.80"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T22:53:12Z","modified":"2026-10-18T22:53:12Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154wm:g028651915:02865_1915-0003/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154wm:g028651915:02865_1915-0003","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1515.2,469.9 1496.2,469.6 1474.9,976.7 1491.8,977.0 1488.8,1842.0 1467.0,1841.6 1207.9,1837.7 1208.2,1824.6 804.8,1871.7 110.5,1880.4 38.4,1828.5 107.5,1552.9 114.9,992.6 51.5,839.0 43.6,329.4 148.5,105.2 331.6,20.3 695.0,54.2 759.8,113.3 1350.3,33.8 1512.3,90.2 1515.2,469.9\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154wm:g028651915:02865_1915-0003/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[729.0,458.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-93.81582474618945,42.47033303986851]}},{"type":"Feature","properties":{"resourceCoords":[1229.0,961.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-93.81707204867106,42.469393919568226]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154wm:g028651915:02865_1915-0004/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Webster City, Iowa | 1915 | sanborn02865_006 p4","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.98"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T22:53:12Z","modified":"2026-10-18T22:53:12Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154wm:g028651915:02865_1915-0004/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154wm:g028651915:02865_1915-0004","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"456.2,1872.7 456.2,1879.2 134.4,1879.6 204.2,1236.0 145.5,510.7 206.8,139.8 458.4,88.7 458.3,101.8 716.8,99.4 958.9,97.2 1222.6,97.0 1477.3,92.5 1471.6,1875.8 798.7,1873.8 456.2,1872.7\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154wm:g028651915:02865_1915-0004/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[966.0,976.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-93.8214921091938,42.46848593963027]}},{"type":"Feature","properties":{"resourceCoords":[966.0,1856.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-93.82370897521916,42.46850385153572]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154wm:g028651915:02865_1915-0005/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Webster City, Iowa | 1915 | sanborn02865_006 p5","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.98"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T22:53:12Z","modified":"2026-10-18T22:53:12Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154wm:g028651915:02865_1915-0005/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154wm:g028651915:02865_1915-0005","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1612.0,957.8 1612.0,958.9 1452.1,961.5 1454.8,1825.0 951.9,1831.7 698.0,1837.2 435.2,1838.5 215.5,1841.5 194.2,981.6 177.3,981.9 184.2,477.2 203.2,476.9 189.6,99.7 201.5,103.5 309.0,36.7 1177.4,38.1 1351.6,71.6 1490.7,178.1 1562.0,589.5 1516.8,944.8 1612.0,943.3 1612.0,957.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154wm:g028651915:02865_1915-0005/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1446.0,963.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-93.81710406613178,42.46657230476404]}},{"type":"Feature","properties":{"resourceCoords":[451.0,463.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-93.81580261599312,42.468413056970746]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154wm:g028651915:02865_1915-0006/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Webster City, Iowa | 1915 | sanborn02865_006 p6","metadata":[{"label":"streets","value":"7"},{"label":"intersections","value":"8"},{"label":"confidence","value":"0.99"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T22:53:12Z","modified":"2026-10-18T22:53:12Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154wm:g028651915:02865_1915-0006/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154wm:g028651915:02865_1915-0006","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"846.2,1862.4 608.0,1863.7 608.0,1888.8 97.5,1887.4 102.5,98.9 608.5,94.0 1518.3,85.3 1518.7,905.7 1517.0,950.0 1519.0,1858.9 846.2,1862.4\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154wm:g028651915:02865_1915-0006/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1517.0,950.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-93.821459,42.4649146]}},{"type":"Feature","properties":{"resourceCoords":[608.0,1853.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-93.8237012,42.4666181]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154wm:g028651915:02865_1915-0007/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Webster City, Iowa | 1915 | sanborn02865_006 p7","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.96"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T22:53:12Z","modified":"2026-10-18T22:53:12Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154wm:g028651915:02865_1915-0007/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154wm:g028651915:02865_1915-0007","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1561.7,1839.7 696.3,1880.3 695.2,1861.5 257.4,1862.6 9.2,1863.2 9.6,965.9 11.3,922.2 13.1,112.3 516.0,108.8 1609.5,101.3 1609.4,150.5 1568.5,150.8 1547.5,222.9 1549.7,467.2 1608.5,445.5 1607.0,912.2 1575.1,912.5 1574.6,952.5 1561.7,1839.7\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154wm:g028651915:02865_1915-0007/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[525.0,968.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-93.82147571248754,42.46394703166271]}},{"type":"Feature","properties":{"resourceCoords":[1048.0,968.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-93.82148738511707,42.46296524191067]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154wm:g028651915:02865_1915-0008__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Webster City, Iowa | 1915 | sanborn02865_006 p8 [1]","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.91"},{"label":"confidence_provisional","value":"true"},{"label":"confidence_model","value":"corpus-v2"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"3802.0"},{"label":"split_canvas_w","value":"6452.0"},{"label":"split_canvas_h","value":"3850.0"}],"created":"2026-10-18T22:53:12Z","modified":"2026-10-18T22:53:12Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154wm:g028651915:02865_1915-0008__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154wm:g028651915:02865_1915-0008","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1184.7,1907.3 1526.3,1906.3 1569.5,1855.7 1559.5,982.3 165.8,979.3 92.0,1013.6 86.1,1859.2 1185.1,1857.9 1184.7,1907.3\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154wm:g028651915:02865_1915-0008__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1171.0,996.5],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-93.81711184175596,42.461918269352914]}},{"type":"Feature","properties":{"resourceCoords":[103.0,996.5],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-93.81710359691188,42.463913290113716]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154wm:g028651915:02865_1915-0008__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Webster City, Iowa | 1915 | sanborn02865_006 p8 [2]","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"5"},{"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":"6452.0"},{"label":"split_canvas_h","value":"3802.0"}],"created":"2026-10-18T22:53:12Z","modified":"2026-10-18T22:53:12Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154wm:g028651915:02865_1915-0008__2/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154wm:g028651915:02865_1915-0008","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1509.1,910.4 1518.5,63.8 1498.5,73.0 1469.6,29.6 271.9,28.3 271.6,43.9 112.0,43.8 100.8,906.2 1003.6,908.9 1509.1,910.4\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154wm:g028651915:02865_1915-0008__2/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[726.0,44.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-93.8170992,42.4654141]}},{"type":"Feature","properties":{"resourceCoords":[1014.0,44.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-93.8170984,42.4648762]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154wm:g028651915:02865_1915-0009/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Webster City, Iowa | 1915 | sanborn02865_006 p9","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.73"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T22:53:12Z","modified":"2026-10-18T22:53:12Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154wm:g028651915:02865_1915-0009/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154wm:g028651915:02865_1915-0009","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1193.2,24.4 40.8,35.5 29.9,1845.6 101.1,1894.4 468.3,1841.4 1022.9,1901.2 1504.3,1901.4 1505.1,1600.5 1507.8,571.9 1509.3,1.0 1195.8,1.0 1193.2,24.4\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154wm:g028651915:02865_1915-0009/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1517.0,1012.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-93.82637079603971,42.46945561020055]}},{"type":"Feature","properties":{"resourceCoords":[1517.0,1872.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-93.82859505913132,42.46947140056534]}}]}}]}