{"id":"https://data.mapsnap.org/runs/v2.0/iiif/chronoscope/sanborn01907_001.main.iiif.json","type":"AnnotationPage","@context":["http://www.w3.org/ns/anno.jsonld"],"label":"Griggsville, Illinois | 1885 | 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":"5"},{"label":"placed","value":"3"},{"label":"unplaced","value":"2"},{"label":"fit sources","value":"georef 3"},{"label":"key map","value":"none"},{"label":"split sheets","value":"1 sheet(s) cut into 5 panels"},{"label":"unplaced pages","value":"p1__2 (tier 4, 39.70884,-90.72674 +/-182m); p1__5 (tier 4, 39.70884,-90.72674 +/-182m)"}],"items":[{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104gm:g019071885:01907_1885-0001__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Griggsville, Illinois | 1885 | sanborn01907_001 p1 [1]","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"15"},{"label":"confidence","value":"0.65"},{"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":"4834.0"}],"created":"2026-10-18T04:32:48Z","modified":"2026-10-18T04:32:48Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104gm:g019071885:01907_1885-0001__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104gm:g019071885:01907_1885-0001","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"118.7,421.5 102.9,795.1 37.0,793.2 68.5,1045.7 507.4,1096.2 690.7,1171.8 795.6,1127.3 1116.7,1201.1 1502.6,1194.5 1567.5,1114.2 1582.5,515.2 1534.3,327.4 1574.2,177.3 1530.3,58.5 271.0,26.3 132.7,41.9 125.8,78.5 118.7,421.5\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104gm:g019071885:01907_1885-0001__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1079.0,415.2],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-90.7252435,39.7085365]}},{"type":"Feature","properties":{"resourceCoords":[100.0,1073.5],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-90.7276746,39.7071778]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104gm:g019071885:01907_1885-0001__3/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Griggsville, Illinois | 1885 | sanborn01907_001 p1 [3]","metadata":[{"label":"streets","value":"2"},{"label":"intersections","value":"2"},{"label":"confidence","value":"0.74"},{"label":"confidence_provisional","value":"true"},{"label":"confidence_model","value":"corpus-v2"},{"label":"split_canvas_x","value":"1244.0"},{"label":"split_canvas_y","value":"4488.0"},{"label":"split_canvas_w","value":"1030.0"},{"label":"split_canvas_h","value":"1212.0"}],"created":"2026-10-18T04:32:48Z","modified":"2026-10-18T04:32:48Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104gm:g019071885:01907_1885-0001__3/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104gm:g019071885:01907_1885-0001","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"355.6,1352.3 533.6,1415.3 549.2,1169.2 330.0,1126.4 355.6,1352.3\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104gm:g019071885:01907_1885-0001__3/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[311.0,1122.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-90.7258420877134,39.71025999262138]}},{"type":"Feature","properties":{"resourceCoords":[568.5,1122.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-90.72518422039421,39.71026402171387]}},{"type":"Feature","properties":{"resourceCoords":[568.5,1425.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-90.7251780533383,39.70966659220084]}},{"type":"Feature","properties":{"resourceCoords":[311.0,1425.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-90.72583592065749,39.70966256310835]}},{"type":"Feature","properties":{"resourceCoords":[535.4,1387.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-90.7252633,39.709741]}},{"type":"Feature","properties":{"resourceCoords":[535.4,1387.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-90.7252633,39.709741]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104gm:g019071885:01907_1885-0001__4/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Griggsville, Illinois | 1885 | sanborn01907_001 p1 [4]","metadata":[{"label":"streets","value":"3"},{"label":"intersections","value":"4"},{"label":"confidence","value":"0.56"},{"label":"confidence_provisional","value":"true"},{"label":"confidence_model","value":"corpus-v2"},{"label":"split_canvas_x","value":"2245.6"},{"label":"split_canvas_y","value":"4834.0"},{"label":"split_canvas_w","value":"4206.4"},{"label":"split_canvas_h","value":"2818.0"}],"created":"2026-10-18T04:32:48Z","modified":"2026-10-18T04:32:48Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104gm:g019071885:01907_1885-0001__4/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104gm:g019071885:01907_1885-0001","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1448.7,1912.0 1514.0,1912.0 1519.0,1542.3 1516.5,1208.5 1501.2,1227.9 595.3,1227.5 596.9,1888.0 1448.1,1908.3 1448.7,1912.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104gm:g019071885:01907_1885-0001__4/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[592.4,1542.3],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-90.7300732,39.7084409]}},{"type":"Feature","properties":{"resourceCoords":[1519.0,1542.3],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-90.7276876,39.7084555]}}]}}]}