{"id":"https://data.mapsnap.org/runs/v1.3/iiif/chronoscope/sanborn01831_006.main.iiif.json","type":"AnnotationPage","@context":["http://www.w3.org/ns/anno.jsonld"],"label":"Dundee, Illinois | 1933 | mapsnap generated fit (2026-09-23)","creator":{"type":"Software","name":"mapsnap","homepage":"https://mapsnap.org"},"rights":"https://opendatacommons.org/licenses/odbl/1-0/","metadata":[{"label":"generated","value":"2026-09-23"},{"label":"run","value":"corpus-v1"},{"label":"pages","value":"18"},{"label":"placed","value":"10"},{"label":"unplaced","value":"8"},{"label":"fit sources","value":"georef 9, georef-snap 1"},{"label":"key map","value":"georeferenced"},{"label":"split sheets","value":"6 sheet(s) cut into 15 panels"},{"label":"unplaced pages","value":"p1 (tier 3, 42.10367,-88.28503 +/-804m); p4__2 (tier 1, 42.10345,-88.29073 +/-187m); p4__3 (tier 3, 42.10076,-88.28467 +/-1219m); p5__2 (tier 1, 42.10382,-88.27444 +/-183m); p6__2 (tier 2, 42.09752,-88.27614 +/-100m); p6__3 (tier 1, 42.09788,-88.27303 +/-253m); p7__1 (tier 1, 42.10952,-88.28905 +/-153m); p9__2 (tier 1, 42.10320,-88.28867 +/-138m)"}],"items":[{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104dm:g018311933:01831_1933-0002__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Dundee, Illinois | 1933 | sanborn01831_006 p2 [1]","metadata":[{"label":"streets","value":"7"},{"label":"intersections","value":"11"},{"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":"2026-09-23T04:02:02Z","modified":"2026-09-23T04:02:02Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104dm:g018311933:01831_1933-0002__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104dm:g018311933:01831_1933-0002","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1613.0,1913.0 1613.0,425.4 1098.5,413.7 1087.9,27.7 517.4,25.1 574.6,73.4 582.1,183.8 46.3,172.4 45.0,1823.2 1123.7,1820.2 1123.8,1913.0 1613.0,1913.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104dm:g018311933:01831_1933-0002__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[586.0,730.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-88.278592,42.0981096]}},{"type":"Feature","properties":{"resourceCoords":[586.0,1823.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-88.2785808,42.0961064]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104dm:g018311933:01831_1933-0002__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Dundee, Illinois | 1933 | sanborn01831_006 p2 [2]","metadata":[{"label":"streets","value":"3"},{"label":"intersections","value":"2"},{"label":"split_canvas_x","value":"4348.4"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"2103.6"},{"label":"split_canvas_h","value":"1701.6"}],"created":"2026-09-23T04:02:02Z","modified":"2026-09-23T04:02:02Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104dm:g018311933:01831_1933-0002__2/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104dm:g018311933:01831_1933-0002","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1104.7,0.0 1110.1,405.4 1607.6,406.6 1586.0,285.7 1104.7,0.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104dm:g018311933:01831_1933-0002__2/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1110.1,-18.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-88.2799143,42.0999634]}},{"type":"Feature","properties":{"resourceCoords":[1110.1,405.4],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-88.2799308,42.0991275]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104dm:g018311933:01831_1933-0003/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Dundee, Illinois | 1933 | sanborn01831_006 p3","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-23T04:02:02Z","modified":"2026-09-23T04:02:02Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104dm:g018311933:01831_1933-0003/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104dm:g018311933:01831_1933-0003","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"-0.0,1913.0 -0.0,-0.0 40.6,0.0 40.0,209.5 715.8,206.6 714.1,44.0 689.9,0.0 888.8,0.0 1037.5,168.9 1529.9,512.6 1533.7,1828.0 1275.3,1829.3 1276.5,1913.0 -0.0,1913.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104dm:g018311933:01831_1933-0003/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-88.2874582747132,42.101869509760874]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-88.27949711844515,42.10185294767394]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-88.27952340543091,42.094797710399455]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-88.28748456169896,42.09481427248639]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104dm:g018311933:01831_1933-0004__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Dundee, Illinois | 1933 | sanborn01831_006 p4 [1]","metadata":[{"label":"streets","value":"13"},{"label":"intersections","value":"13"},{"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":"2026-09-23T04:02:02Z","modified":"2026-09-23T04:02:02Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104dm:g018311933:01831_1933-0004__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104dm:g018311933:01831_1933-0004","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"-0.0,1913.0 1088.1,1913.0 1102.3,1345.8 1613.0,1344.7 1613.0,739.9 978.7,737.6 992.6,165.8 795.4,164.2 795.7,118.0 259.4,115.0 256.8,383.6 -0.0,381.1 -0.0,1913.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104dm:g018311933:01831_1933-0004__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1117.0,856.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-88.2756114,42.0934104]}},{"type":"Feature","properties":{"resourceCoords":[241.0,1370.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-88.279931,42.0914759]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104dm:g018311933:01831_1933-0005__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Dundee, Illinois | 1933 | sanborn01831_006 p5 [1]","metadata":[{"label":"streets","value":"5"},{"label":"intersections","value":"6"},{"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":"2026-09-23T04:02:02Z","modified":"2026-09-23T04:02:02Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104dm:g018311933:01831_1933-0005__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104dm:g018311933:01831_1933-0005","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"-0.0,1773.5 1001.4,1797.6 1002.0,1913.0 1613.0,1913.0 1613.0,401.1 944.7,398.7 949.6,0.0 949.5,0.0 -0.0,-0.0 -0.0,1773.5\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104dm:g018311933:01831_1933-0005__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[997.0,1306.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-88.2737168,42.1010942]}},{"type":"Feature","properties":{"resourceCoords":[997.0,799.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-88.2739753,42.1020078]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104dm:g018311933:01831_1933-0006__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Dundee, Illinois | 1933 | sanborn01831_006 p6 [1]","metadata":[{"label":"streets","value":"8"},{"label":"intersections","value":"12"},{"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":"2026-09-23T04:02:02Z","modified":"2026-09-23T04:02:02Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104dm:g018311933:01831_1933-0006__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104dm:g018311933:01831_1933-0006","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"446.9,1664.2 493.4,1669.8 449.9,1913.0 830.4,1913.0 830.7,1100.0 1186.2,1100.3 1185.2,814.9 1005.8,813.6 1011.8,287.5 1010.0,246.5 719.1,251.5 717.8,193.6 45.8,189.0 144.0,381.7 144.2,382.9 14.8,1072.5 426.5,1146.2 428.7,1639.6 446.9,1664.2\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104dm:g018311933:01831_1933-0006__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[427.0,1177.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-88.2739503,42.0964703]}},{"type":"Feature","properties":{"resourceCoords":[725.0,1177.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-88.2725051,42.0966761]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104dm:g018311933:01831_1933-0007__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Dundee, Illinois | 1933 | sanborn01831_006 p7 [2]","metadata":[{"label":"streets","value":"11"},{"label":"intersections","value":"17"},{"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":"2026-09-23T04:02:02Z","modified":"2026-09-23T04:02:02Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104dm:g018311933:01831_1933-0007__2/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104dm:g018311933:01831_1933-0007","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1377.6,1814.0 1551.4,1778.4 1359.8,909.1 1613.0,855.8 1613.0,0.0 9.2,0.0 141.2,204.9 -0.0,295.8 -0.0,859.6 48.5,859.9 48.0,961.8 1132.2,1913.0 1461.0,1913.0 1377.6,1814.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104dm:g018311933:01831_1933-0007__2/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1047.0,1350.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-88.2783439,42.1014604]}},{"type":"Feature","properties":{"resourceCoords":[1310.0,169.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-88.2770479,42.1057761]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104dm:g018311933:01831_1933-0008/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Dundee, Illinois | 1933 | sanborn01831_006 p8","metadata":[{"label":"streets","value":"12"},{"label":"intersections","value":"39"}],"created":"2026-09-23T04:02:02Z","modified":"2026-09-23T04:02:02Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104dm:g018311933:01831_1933-0008/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104dm:g018311933:01831_1933-0008","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"648.5,1598.9 -0.0,1839.7 -0.0,-0.0 1613.0,0.0 1613.0,1913.0 1035.3,1913.0 994.8,1823.6 984.5,1822.6 852.3,1809.5 634.8,1791.3 648.5,1598.9\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104dm:g018311933:01831_1933-0008/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[867.0,766.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-88.2868484,42.1124795]}},{"type":"Feature","properties":{"resourceCoords":[867.0,1541.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-88.286291,42.109668]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104dm:g018311933:01831_1933-0009__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Dundee, Illinois | 1933 | sanborn01831_006 p9 [1]","metadata":[{"label":"streets","value":"7"},{"label":"intersections","value":"9"},{"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":"2026-09-23T04:02:02Z","modified":"2026-09-23T04:02:02Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104dm:g018311933:01831_1933-0009__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104dm:g018311933:01831_1933-0009","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"804.7,1913.0 804.6,1234.9 1613.0,1237.4 1613.0,919.6 1298.5,741.7 1390.3,572.1 700.4,523.7 937.7,0.0 -0.0,-0.0 -0.0,1913.0 804.7,1913.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104dm:g018311933:01831_1933-0009__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1238.0,556.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-88.2879922,42.10909]}},{"type":"Feature","properties":{"resourceCoords":[484.0,510.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-88.2912524,42.1077351]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104dm:g018311933:01831_1933-0009__3/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Dundee, Illinois | 1933 | sanborn01831_006 p9 [3]","metadata":[{"label":"streets","value":"4"},{"label":"intersections","value":"2"},{"label":"split_canvas_x","value":"3218.4"},{"label":"split_canvas_y","value":"4939.6"},{"label":"split_canvas_w","value":"3233.6"},{"label":"split_canvas_h","value":"2712.4"}],"created":"2026-09-23T04:02:02Z","modified":"2026-09-23T04:02:02Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104dm:g018311933:01831_1933-0009__3/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104dm:g018311933:01831_1933-0009","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1455.1,1615.9 1613.0,1615.4 1613.0,1237.4 999.6,1235.5 1002.4,1257.6 978.9,1235.5 804.6,1234.9 804.7,1828.8 1481.5,1824.1 1469.4,1642.0 1455.1,1615.9\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104dm:g018311933:01831_1933-0009__3/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1001.5,1565.5],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-88.2862866,42.1020559]}},{"type":"Feature","properties":{"resourceCoords":[1001.5,1827.1],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-88.2862937,42.1010989]}}]}}]}