{"id":"https://data.mapsnap.org/runs/v2.0/iiif/chronoscope/sanborn01893_001.main.iiif.json","type":"AnnotationPage","@context":["http://www.w3.org/ns/anno.jsonld"],"label":"Glen Ellyn, Illinois | 1919 | 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":"12"},{"label":"placed","value":"6"},{"label":"unplaced","value":"6"},{"label":"fit sources","value":"georef-snap 3, georef 3"},{"label":"key map","value":"none"},{"label":"split sheets","value":"3 sheet(s) cut into 11 panels"},{"label":"unplaced pages","value":"p1__1 (tier 1, 41.79119,-87.91836 +/-220m); p1__2 (tier 4, 41.87647,-88.06666 +/-374m); p1__3 (tier 1, 41.85471,-88.10490 +/-100m); p1__4 (tier 4, 41.87647,-88.06666 +/-374m); p1__5 (tier 4, 41.87647,-88.06666 +/-374m); p4__3 (tier 1, 41.87512,-88.07664 +/-100m)"}],"items":[{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104gm:g018931919:01893_1919-0001__6/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Glen Ellyn, Illinois | 1919 | sanborn01893_001 p1 [6]","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.83"},{"label":"confidence_provisional","value":"true"},{"label":"confidence_model","value":"corpus-v2"},{"label":"split_canvas_x","value":"3032.0"},{"label":"split_canvas_y","value":"5770.0"},{"label":"split_canvas_w","value":"3420.0"},{"label":"split_canvas_h","value":"1882.0"}],"created":"2026-10-19T01:22:51Z","modified":"2026-10-19T01:22:51Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104gm:g018931919:01893_1919-0001__6/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104gm:g018931919:01893_1919-0001","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1612.0,1492.8 1612.0,1475.0 798.0,1540.5 803.8,1863.2 843.5,1865.1 1565.3,1856.2 1522.1,1733.1 1527.5,1508.9 1612.0,1492.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104gm:g018931919:01893_1919-0001__6/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[802.0,1844.1],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-88.0667038190537,41.875497127506804]}},{"type":"Feature","properties":{"resourceCoords":[1563.0,1844.1],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-88.06479929904096,41.87548551178071]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104gm:g018931919:01893_1919-0002/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Glen Ellyn, Illinois | 1919 | sanborn01893_001 p2","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.95"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-19T01:22:51Z","modified":"2026-10-19T01:22:51Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104gm:g018931919:01893_1919-0002/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104gm:g018931919:01893_1919-0002","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"196.8,1328.8 200.4,1029.9 64.5,1058.4 9.4,1029.5 53.5,1038.0 57.8,47.0 1547.8,82.8 1547.8,60.0 1563.1,59.9 1567.8,738.5 1567.0,1242.9 1556.4,1289.3 1559.4,1434.0 1572.3,1511.2 1574.1,1853.2 802.6,1854.3 802.6,1870.7 108.7,1867.7 74.0,1654.2 73.9,1653.5 194.3,1674.0 193.9,1628.6 196.8,1328.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104gm:g018931919:01893_1919-0002/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[195.0,1339.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-88.07010892908937,41.87639559664334]}},{"type":"Feature","properties":{"resourceCoords":[1549.0,70.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-88.06678063990213,41.87873830647605]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104gm:g018931919:01893_1919-0003__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Glen Ellyn, Illinois | 1919 | sanborn01893_001 p3 [1]","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.96"},{"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":"2026-10-19T01:22:51Z","modified":"2026-10-19T01:22:51Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104gm:g018931919:01893_1919-0003__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104gm:g018931919:01893_1919-0003","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"910.6,1854.8 911.1,1872.5 1505.0,1777.0 1579.8,1683.8 1579.1,1377.5 1612.0,1357.9 1608.8,1330.8 1569.5,1342.0 1569.0,1020.9 1550.9,990.5 1468.8,733.6 1533.4,443.3 1490.7,391.4 1337.1,417.2 1279.2,51.5 98.5,33.6 89.8,440.9 104.9,441.1 98.2,1115.0 88.8,1615.8 77.5,1661.7 78.0,1805.4 89.6,1882.3 89.4,1896.6 910.6,1854.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104gm:g018931919:01893_1919-0003__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[748.0,992.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-88.0651188202581,41.87776309054271]}},{"type":"Feature","properties":{"resourceCoords":[101.0,1105.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-88.0667205328564,41.87752850395201]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104gm:g018931919:01893_1919-0003__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Glen Ellyn, Illinois | 1919 | sanborn01893_001 p3 [2]","metadata":[{"label":"streets","value":"2"},{"label":"intersections","value":"1"},{"label":"confidence","value":"0.45"},{"label":"confidence_provisional","value":"true"},{"label":"confidence_model","value":"corpus-v2"},{"label":"split_canvas_x","value":"5333.2"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"1118.8"},{"label":"split_canvas_h","value":"1416.0"}],"created":"2026-10-19T01:22:51Z","modified":"2026-10-19T01:22:51Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104gm:g018931919:01893_1919-0003__2/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104gm:g018931919:01893_1919-0003","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1409.7,334.2 1410.8,333.9 1418.2,307.4 1392.0,282.1 1584.3,242.9 1603.2,180.9 1598.1,74.0 1467.3,34.2 1458.8,2.3 1373.5,307.7 1413.9,307.6 1417.2,307.4 1409.7,334.2\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104gm:g018931919:01893_1919-0003__2/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[1333.3,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-88.06338137015823,41.87767763803248]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-88.06270737754392,41.87783048215801]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,354.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-88.06244801057707,41.87719561964015]}},{"type":"Feature","properties":{"resourceCoords":[1333.3,354.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-88.06312200319138,41.87704277551462]}},{"type":"Feature","properties":{"resourceCoords":[1363.3,308.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-88.0630838,41.8771424]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104gm:g018931919:01893_1919-0004__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Glen Ellyn, Illinois | 1919 | sanborn01893_001 p4 [1]","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"9"},{"label":"confidence","value":"0.98"},{"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":"5902.4"}],"created":"2026-10-19T01:22:51Z","modified":"2026-10-19T01:22:51Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104gm:g018931919:01893_1919-0004__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104gm:g018931919:01893_1919-0004","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"53.8,57.8 70.0,1310.4 991.6,1314.3 991.9,1315.1 993.6,1315.0 994.3,1320.9 1055.7,1473.0 1569.3,1466.8 1574.2,1466.7 1572.4,215.5 1514.2,43.0 796.3,42.9 756.8,40.5 1.0,41.5 1.0,57.6 53.8,57.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104gm:g018931919:01893_1919-0004__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[761.0,791.8],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-88.066681,41.8740535]}},{"type":"Feature","properties":{"resourceCoords":[79.0,791.8],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-88.068397,41.874048]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104gm:g018931919:01893_1919-0004__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Glen Ellyn, Illinois | 1919 | sanborn01893_001 p4 [2]","metadata":[{"label":"streets","value":"3"},{"label":"intersections","value":"2"},{"label":"confidence","value":"0.60"},{"label":"confidence_provisional","value":"true"},{"label":"confidence_model","value":"corpus-v2"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"5261.6"},{"label":"split_canvas_w","value":"4222.4"},{"label":"split_canvas_h","value":"2390.4"}],"created":"2026-10-19T01:22:51Z","modified":"2026-10-19T01:22:51Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104gm:g018931919:01893_1919-0004__2/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104gm:g018931919:01893_1919-0004","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"946.2,1586.5 903.6,1316.8 869.0,1317.3 778.2,1353.0 721.6,1334.7 307.9,1326.0 68.0,1380.0 29.6,1834.3 104.5,1900.0 880.6,1906.4 882.6,1912.0 957.8,1912.0 999.3,1912.0 991.6,1869.3 946.2,1586.5\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104gm:g018931919:01893_1919-0004__2/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[72.0,1624.2],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-88.072348,41.876618]}},{"type":"Feature","properties":{"resourceCoords":[901.6,1304.4],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-88.0700988,41.8769637]}}]}}]}