{"id":"https://data.mapsnap.org/runs/v2.0/iiif/chronoscope/sanborn01960_001.main.iiif.json","type":"AnnotationPage","@context":["http://www.w3.org/ns/anno.jsonld"],"label":"Lacon, Illinois | 1888 | mapsnap generated fit (2026-10-22)","creator":{"type":"Software","name":"mapsnap","homepage":"https://mapsnap.org"},"rights":"https://opendatacommons.org/licenses/odbl/1-0/","metadata":[{"label":"generated","value":"2026-10-22"},{"label":"run","value":"corpus-v2.1"},{"label":"pages","value":"7"},{"label":"placed","value":"3"},{"label":"unplaced","value":"4"},{"label":"fit sources","value":"georef 2, snap:2 1"},{"label":"key map","value":"none"},{"label":"split sheets","value":"1 sheet(s) cut into 5 panels"},{"label":"unplaced pages","value":"p1__1 (tier 1, 41.02461,-89.40545 +/-213m); p1__3 (tier 4, 41.02568,-89.41115 +/-181m); p1__4 (tier 4, 41.02568,-89.41115 +/-181m); p1__5 (tier 4, 41.02568,-89.41115 +/-181m)"}],"items":[{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104lm:g019601888:01960_1888-0001__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Lacon, Illinois | 1888 | sanborn01960_001 p1 [2]","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.69"},{"label":"confidence_provisional","value":"true"},{"label":"confidence_model","value":"corpus-v2"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"3978.0"},{"label":"split_canvas_w","value":"2886.0"},{"label":"split_canvas_h","value":"3674.0"}],"created":"2026-10-22T13:03:26Z","modified":"2026-10-22T13:03:26Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104lm:g019601888:01960_1888-0001__2/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104lm:g019601888:01960_1888-0001","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"23.4,1700.4 165.4,1793.6 167.2,1726.5 671.1,1729.5 671.3,1721.4 625.8,1610.9 653.8,1023.3 68.3,1039.5 43.1,1699.8 23.4,1700.4\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104lm:g019601888:01960_1888-0001__2/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,994.5],"type":"corner"},"geometry":{"type":"Point","coordinates":[-89.41209713231504,41.02812300960977]}},{"type":"Feature","properties":{"resourceCoords":[721.5,994.5],"type":"corner"},"geometry":{"type":"Point","coordinates":[-89.41034116380756,41.02793635265031]}},{"type":"Feature","properties":{"resourceCoords":[721.5,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-89.4106538722088,41.02623819506893]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-89.41240984071628,41.02642485202839]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104lm:g019601888:01960_1888-0002/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Lacon, Illinois | 1888 | sanborn01960_001 p2","metadata":[{"label":"streets","value":"5"},{"label":"intersections","value":"8"},{"label":"confidence","value":"0.82"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-22T13:03:26Z","modified":"2026-10-22T13:03:26Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104lm:g019601888:01960_1888-0002/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104lm:g019601888:01960_1888-0002","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"958.3,122.7 958.1,54.8 1464.6,44.2 1482.0,536.0 1482.0,1030.0 1503.5,1515.2 1510.9,1892.5 1371.2,1912.0 1363.6,1912.0 1343.0,1873.3 505.1,1873.5 413.6,1814.7 90.3,1876.5 60.1,1829.7 69.3,78.0 812.9,32.3 958.3,122.7\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104lm:g019601888:01960_1888-0002/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1482.0,1030.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-89.4110722,41.0247921]}},{"type":"Feature","properties":{"resourceCoords":[1482.0,536.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-89.4108717,41.0256907]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104lm:g019601888:01960_1888-0003/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Lacon, Illinois | 1888 | sanborn01960_001 p3","metadata":[{"label":"streets","value":"5"},{"label":"intersections","value":"9"},{"label":"confidence","value":"0.94"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-22T13:03:26Z","modified":"2026-10-22T13:03:26Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104lm:g019601888:01960_1888-0003/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104lm:g019601888:01960_1888-0003","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"147.4,1513.5 131.7,1032.3 137.5,542.7 126.0,55.0 126.0,46.9 1326.9,35.2 1554.8,131.7 1592.4,1593.4 1517.0,1862.0 371.6,1857.5 150.3,1887.6 147.4,1513.5\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104lm:g019601888:01960_1888-0003/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1271.0,1018.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-89.4082904,41.0244912]}},{"type":"Feature","properties":{"resourceCoords":[126.0,55.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-89.410714,41.0265905]}}]}}]}