{"id":"https://data.mapsnap.org/runs/v2.0/iiif/chronoscope/sanborn01770_002.main.iiif.json","type":"AnnotationPage","@context":["http://www.w3.org/ns/anno.jsonld"],"label":"Carrollton, Illinois | 1893 | mapsnap generated fit (2026-10-19)","creator":{"type":"Software","name":"mapsnap","homepage":"https://mapsnap.org"},"rights":"https://opendatacommons.org/licenses/odbl/1-0/","metadata":[{"label":"generated","value":"2026-10-19"},{"label":"run","value":"corpus-v2"},{"label":"pages","value":"10"},{"label":"placed","value":"5"},{"label":"unplaced","value":"5"},{"label":"fit sources","value":"georef 3, georef-snap 2"},{"label":"key map","value":"none"},{"label":"split sheets","value":"1 sheet(s) cut into 8 panels"},{"label":"unplaced pages","value":"p1__1 (tier 4, 39.30125,-90.40714 +/-352m); p1__3 (tier 4, 39.30125,-90.40714 +/-352m); p1__6 (tier 4, 39.30125,-90.40714 +/-352m); p1__7 (tier 1, 39.30321,-90.39795 +/-103m); p1__8 (tier 4, 39.30125,-90.40714 +/-352m)"}],"items":[{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104cm:g017701893:01770_1893-0001__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Carrollton, Illinois | 1893 | sanborn01770_002 p1 [2]","metadata":[{"label":"streets","value":"2"},{"label":"intersections","value":"1"},{"label":"confidence","value":"0.69"},{"label":"confidence_provisional","value":"true"},{"label":"confidence_model","value":"corpus-v2"},{"label":"split_canvas_x","value":"1083.6"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"2619.6"},{"label":"split_canvas_h","value":"2428.8"}],"created":"2026-10-19T00:10:57Z","modified":"2026-10-19T00:10:57Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104cm:g017701893:01770_1893-0001__2/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104cm:g017701893:01770_1893-0001","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"300.3,592.5 924.5,571.1 924.0,513.2 923.3,420.5 906.8,18.5 530.2,53.1 319.2,5.2 293.2,491.5 300.3,592.5\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104cm:g017701893:01770_1893-0001__2/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[270.9,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-90.40920287193978,39.30390040828737]}},{"type":"Feature","properties":{"resourceCoords":[925.8,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-90.40762855267242,39.303882526493354]}},{"type":"Feature","properties":{"resourceCoords":[925.8,607.2],"type":"corner"},"geometry":{"type":"Point","coordinates":[-90.40764995310491,39.30275623435773]}},{"type":"Feature","properties":{"resourceCoords":[270.9,607.2],"type":"corner"},"geometry":{"type":"Point","coordinates":[-90.40922427237227,39.302774116151745]}},{"type":"Feature","properties":{"resourceCoords":[293.9,264.1],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-90.409157,39.303409]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104cm:g017701893:01770_1893-0001__4/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Carrollton, Illinois | 1893 | sanborn01770_002 p1 [4]","metadata":[{"label":"streets","value":"2"},{"label":"intersections","value":"1"},{"label":"confidence","value":"0.85"},{"label":"confidence_provisional","value":"true"},{"label":"confidence_model","value":"corpus-v2"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"2422.0"},{"label":"split_canvas_w","value":"2054.0"},{"label":"split_canvas_h","value":"1534.8"}],"created":"2026-10-19T00:10:57Z","modified":"2026-10-19T00:10:57Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104cm:g017701893:01770_1893-0001__4/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104cm:g017701893:01770_1893-0001","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"72.8,907.6 470.1,934.9 494.8,929.3 487.5,631.8 21.6,624.6 21.8,958.5 72.8,907.6\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104cm:g017701893:01770_1893-0001__4/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,605.5],"type":"corner"},"geometry":{"type":"Point","coordinates":[-90.40843545234071,39.29768405710596]}},{"type":"Feature","properties":{"resourceCoords":[513.5,605.5],"type":"corner"},"geometry":{"type":"Point","coordinates":[-90.40843522471246,39.29863603437309]}},{"type":"Feature","properties":{"resourceCoords":[513.5,989.2],"type":"corner"},"geometry":{"type":"Point","coordinates":[-90.40751357254739,39.29863590263438]}},{"type":"Feature","properties":{"resourceCoords":[0.0,989.2],"type":"corner"},"geometry":{"type":"Point","coordinates":[-90.40751380017564,39.29768392536725]}},{"type":"Feature","properties":{"resourceCoords":[470.4,929.2],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-90.4076576,39.2985552]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104cm:g017701893:01770_1893-0001__5/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Carrollton, Illinois | 1893 | sanborn01770_002 p1 [5]","metadata":[{"label":"streets","value":"2"},{"label":"intersections","value":"1"},{"label":"confidence","value":"0.80"},{"label":"confidence_provisional","value":"true"},{"label":"confidence_model","value":"corpus-v2"},{"label":"split_canvas_x","value":"2040.8"},{"label":"split_canvas_y","value":"2409.2"},{"label":"split_canvas_w","value":"1675.2"},{"label":"split_canvas_h","value":"1534.0"}],"created":"2026-10-19T00:10:57Z","modified":"2026-10-19T00:10:57Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104cm:g017701893:01770_1893-0001__5/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104cm:g017701893:01770_1893-0001","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"541.1,869.7 541.2,910.5 521.6,911.7 528.1,984.3 912.8,960.9 902.9,602.5 859.7,602.8 541.1,853.6 541.1,869.7\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104cm:g017701893:01770_1893-0001__5/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[510.2,602.3],"type":"corner"},"geometry":{"type":"Point","coordinates":[-90.4045841484645,39.3021050290967]}},{"type":"Feature","properties":{"resourceCoords":[929.0,602.3],"type":"corner"},"geometry":{"type":"Point","coordinates":[-90.40456090376901,39.30288236226676]}},{"type":"Feature","properties":{"resourceCoords":[929.0,985.8],"type":"corner"},"geometry":{"type":"Point","coordinates":[-90.4036394978194,39.30286589147593]}},{"type":"Feature","properties":{"resourceCoords":[510.2,985.8],"type":"corner"},"geometry":{"type":"Point","coordinates":[-90.40366274251488,39.302088558305876]}},{"type":"Feature","properties":{"resourceCoords":[541.2,940.9],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-90.403769,39.302148]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104cm:g017701893:01770_1893-0002/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Carrollton, Illinois | 1893 | sanborn01770_002 p2","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.88"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-19T00:10:57Z","modified":"2026-10-19T00:10:57Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104cm:g017701893:01770_1893-0002/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104cm:g017701893:01770_1893-0002","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1308.2,41.1 1308.0,84.2 1555.2,405.6 1571.2,405.7 1612.0,406.2 1612.0,425.8 1577.0,428.6 1563.9,1880.5 42.9,1897.2 45.5,1378.8 41.2,1055.5 34.5,60.8 1308.2,41.1\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104cm:g017701893:01770_1893-0002/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1566.0,1049.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-90.4039694921561,39.30095561910264]}},{"type":"Feature","properties":{"resourceCoords":[1566.0,1695.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-90.40398656742721,39.29975509470819]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104cm:g017701893:01770_1893-0003/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Carrollton, Illinois | 1893 | sanborn01770_002 p3","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.82"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-19T00:10:57Z","modified":"2026-10-19T00:10:57Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104cm:g017701893:01770_1893-0003/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104cm:g017701893:01770_1893-0003","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"895.9,43.6 402.0,25.9 119.1,115.6 64.0,1865.2 1499.4,1875.7 1511.2,1371.8 1512.8,1057.6 1524.0,90.5 904.0,98.2 905.6,1.0 899.1,1.0 895.9,43.6\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104cm:g017701893:01770_1893-0003/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[254.0,1035.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-90.4107417428234,39.30100016850801]}},{"type":"Feature","properties":{"resourceCoords":[254.0,1677.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-90.41073011843689,39.299772832734035]}}]}}]}