{"id":"https://data.mapsnap.org/runs/v2.0/iiif/chronoscope/sanborn01973_001.main.iiif.json","type":"AnnotationPage","@context":["http://www.w3.org/ns/anno.jsonld"],"label":"Libertyville, Illinois | 1897 | 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":"8"},{"label":"placed","value":"2"},{"label":"unplaced","value":"6"},{"label":"fit sources","value":"georef 2"},{"label":"key map","value":"none"},{"label":"split sheets","value":"2 sheet(s) cut into 8 panels"},{"label":"unplaced pages","value":"p1__2 (tier 4, 42.28746,-87.95346 +/-110m); p2__1 (tier 2, 42.28720,-87.95211 +/-100m); p2__3 (tier 2, 42.28720,-87.95211 +/-100m); p2__4 (tier 2, 42.28720,-87.95211 +/-100m); p2__5 (tier 2, 42.28720,-87.95211 +/-100m); p2__6 (tier 2, 42.28720,-87.95211 +/-100m)"}],"items":[{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104lm:g019731897:01973_1897-0001__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Libertyville, Illinois | 1897 | sanborn01973_001 p1 [1]","metadata":[{"label":"streets","value":"5"},{"label":"intersections","value":"6"},{"label":"confidence","value":"0.64"},{"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":"2026-10-18T04:33:38Z","modified":"2026-10-18T04:33:38Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104lm:g019731897:01973_1897-0001__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104lm:g019731897:01973_1897-0001","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"32.1,1007.0 90.9,1679.6 67.3,1763.6 139.9,1774.9 278.7,1796.5 395.2,1813.3 411.6,1814.0 581.7,1822.0 678.8,1826.7 1132.5,1848.1 1373.7,1912.0 1389.0,1875.3 1573.7,1865.0 1611.2,1565.5 1554.5,1030.5 1279.2,1034.8 1218.9,827.4 1239.0,441.2 1272.1,427.3 1272.1,424.5 1279.0,424.4 1573.0,300.9 1554.8,168.4 1429.1,141.8 1374.3,49.6 1107.2,100.9 818.5,42.1 90.7,62.1 32.1,1007.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104lm:g019731897:01973_1897-0001__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[346.0,686.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-87.954541,42.288804]}},{"type":"Feature","properties":{"resourceCoords":[346.0,1807.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-87.954137,42.286822]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104lm:g019731897:01973_1897-0002__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Libertyville, Illinois | 1897 | sanborn01973_001 p2 [2]","metadata":[{"label":"streets","value":"3"},{"label":"intersections","value":"3"},{"label":"confidence","value":"0.27"},{"label":"confidence_provisional","value":"true"},{"label":"confidence_model","value":"corpus-v2"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"2774.0"},{"label":"split_canvas_w","value":"6452.0"},{"label":"split_canvas_h","value":"3263.2"}],"created":"2026-10-18T04:33:38Z","modified":"2026-10-18T04:33:38Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104lm:g019731897:01973_1897-0002__2/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104lm:g019731897:01973_1897-0002","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1315.0,790.5 618.5,932.6 571.0,938.5 300.6,963.9 299.7,997.0 59.6,1079.3 52.2,1226.0 167.0,1426.3 907.4,1455.2 960.5,1033.8 1526.0,992.3 1587.6,876.7 1569.3,793.2 1315.0,790.5\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104lm:g019731897:01973_1897-0002__2/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[571.0,938.5],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-87.954137,42.286822]}},{"type":"Feature","properties":{"resourceCoords":[1315.0,790.5],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-87.9522425,42.2869591]}}]}}]}