{"id":"https://data.mapsnap.org/runs/v1.3/iiif/chronoscope/sanborn01894_001.main.iiif.json","type":"AnnotationPage","@context":["http://www.w3.org/ns/anno.jsonld"],"label":"Golconda, Illinois | 1894 | 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":"4"},{"label":"placed","value":"4"},{"label":"unplaced","value":"0"},{"label":"fit sources","value":"georef 4"},{"label":"key map","value":"none"},{"label":"split sheets","value":"1 sheet(s) cut into 2 panels"}],"items":[{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104gm:g018941894:01894_1894-0001__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Golconda, Illinois | 1894 | sanborn01894_001 p1 [1]","metadata":[{"label":"streets","value":"2"},{"label":"intersections","value":"1"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"5916.4"},{"label":"split_canvas_w","value":"2232.0"},{"label":"split_canvas_h","value":"1735.6"}],"created":"2026-09-23T12:00:48Z","modified":"2026-09-23T12:00:48Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104gm:g018941894:01894_1894-0001__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104gm:g018941894:01894_1894-0001","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"0.0,1807.2 557.8,1803.5 557.3,1485.6 0.0,1479.1 0.0,1807.2\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104gm:g018941894:01894_1894-0001__1/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,1479.1],"type":"corner"},"geometry":{"type":"Point","coordinates":[-88.48971345137136,37.36602087234719]}},{"type":"Feature","properties":{"resourceCoords":[558.0,1479.1],"type":"corner"},"geometry":{"type":"Point","coordinates":[-88.48942103659213,37.36706744367565]}},{"type":"Feature","properties":{"resourceCoords":[558.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-88.48839648290091,37.36688674936001]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-88.48868889768013,37.365840178031554]}},{"type":"Feature","properties":{"resourceCoords":[519.0,1803.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-88.4886766,37.3668594]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104gm:g018941894:01894_1894-0001__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Golconda, Illinois | 1894 | sanborn01894_001 p1 [2]","metadata":[{"label":"streets","value":"5"},{"label":"intersections","value":"2"},{"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":"2026-09-23T12:00:48Z","modified":"2026-09-23T12:00:48Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104gm:g018941894:01894_1894-0001__2/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104gm:g018941894:01894_1894-0001","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"957.5,286.4 959.6,0.0 -0.0,-0.0 0.0,1479.1 557.3,1485.6 558.0,1913.0 1038.2,1913.0 1160.0,1913.0 1317.0,1913.0 1506.1,1913.0 1522.9,294.4 957.5,286.4\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104gm:g018941894:01894_1894-0001__2/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[453.0,782.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-88.4881164,37.3648342]}},{"type":"Feature","properties":{"resourceCoords":[453.0,277.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-88.4892124,37.365021]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104gm:g018941894:01894_1894-0002/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Golconda, Illinois | 1894 | sanborn01894_001 p2","metadata":[{"label":"streets","value":"8"},{"label":"intersections","value":"12"}],"created":"2026-09-23T12:00:48Z","modified":"2026-09-23T12:00:48Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104gm:g018941894:01894_1894-0002/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104gm:g018941894:01894_1894-0002","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"95.0,145.0 1528.1,127.0 1529.4,0.0 1613.0,0.0 1613.0,1913.0 0.0,1913.0 0.0,663.3 95.0,662.3 95.0,145.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104gm:g018941894:01894_1894-0002/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[95.0,625.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-88.48526,37.3662476]}},{"type":"Feature","properties":{"resourceCoords":[95.0,145.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-88.4863989,37.3664515]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104gm:g018941894:01894_1894-0003/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Golconda, Illinois | 1894 | sanborn01894_001 p3","metadata":[{"label":"streets","value":"8"},{"label":"intersections","value":"14"}],"created":"2026-09-23T12:00:48Z","modified":"2026-09-23T12:00:48Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104gm:g018941894:01894_1894-0003/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104gm:g018941894:01894_1894-0003","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"78.7,872.1 117.7,872.6 117.6,548.1 0.0,548.1 0.0,-0.0 1613.0,0.0 1603.1,1696.2 1519.0,1696.0 1517.3,1823.8 75.9,1837.7 78.7,872.1\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104gm:g018941894:01894_1894-0003/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[557.0,403.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-88.489533,37.367952]}},{"type":"Feature","properties":{"resourceCoords":[557.0,1843.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-88.4861338,37.3673516]}}]}}]}