{"id":"https://data.mapsnap.org/runs/v2.0/iiif/chronoscope/sanborn01770_005.main.iiif.json","type":"AnnotationPage","@context":["http://www.w3.org/ns/anno.jsonld"],"label":"Carrollton, Illinois | 1914 | mapsnap generated fit (2026-10-20)","creator":{"type":"Software","name":"mapsnap","homepage":"https://mapsnap.org"},"rights":"https://opendatacommons.org/licenses/odbl/1-0/","metadata":[{"label":"generated","value":"2026-10-20"},{"label":"run","value":"corpus-v2"},{"label":"pages","value":"12"},{"label":"placed","value":"6"},{"label":"unplaced","value":"6"},{"label":"fit sources","value":"georef-snap 5, georef 1"},{"label":"key map","value":"georeferenced"},{"label":"split sheets","value":"3 sheet(s) cut into 7 panels"},{"label":"unplaced pages","value":"p1__1 (tier 1, 39.30246,-90.40953 +/-210m); p2__1 (tier 1, 39.30110,-90.41279 +/-100m); p2__2 (tier 1, 39.30150,-90.41412 +/-262m); p2__3 (tier 1, 39.30233,-90.39846 +/-100m); p2__4 (tier 1, 39.30229,-90.41236 +/-100m); p8__2 (tier 1, 39.29890,-90.40652 +/-100m)"}],"items":[{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104cm:g017701914:01770_1914-0003/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Carrollton, Illinois | 1914 | sanborn01770_005 p3","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.65"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-20T01:21:15Z","modified":"2026-10-20T01:21:15Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104cm:g017701914:01770_1914-0003/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104cm:g017701914:01770_1914-0003","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1439.7,566.6 1447.7,566.6 1445.2,1206.4 1449.9,1537.3 1450.6,1856.9 1129.0,1852.8 1078.7,1854.8 802.0,1845.1 573.0,1846.8 565.7,1832.6 129.9,1807.0 99.0,1547.7 176.2,1186.6 125.0,156.1 604.2,159.7 821.5,93.2 960.3,200.4 1373.8,161.3 1473.7,176.2 1439.7,566.6\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104cm:g017701914:01770_1914-0003/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-90.41263324321181,39.303277444845264]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-90.40876027269854,39.30325528474511]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-90.40879399816222,39.299675810967344]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-90.4126669686755,39.299697971067495]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104cm:g017701914:01770_1914-0004/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Carrollton, Illinois | 1914 | sanborn01770_005 p4","metadata":[{"label":"streets","value":"4"},{"label":"intersections","value":"2"},{"label":"confidence","value":"0.89"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-20T01:21:15Z","modified":"2026-10-20T01:21:15Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104cm:g017701914:01770_1914-0004/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104cm:g017701914:01770_1914-0004","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1133.0,1814.3 808.9,1820.7 233.8,1811.8 183.5,1813.6 183.7,1500.4 180.1,1176.1 184.3,549.1 176.6,549.1 210.7,166.7 516.5,213.6 911.4,42.3 1067.0,105.2 1427.4,117.7 1448.0,103.3 1467.8,559.5 1450.0,560.0 1451.2,657.4 1445.0,876.4 1441.5,1193.8 1442.3,1505.4 1449.9,1816.9 1133.0,1814.3\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104cm:g017701914:01770_1914-0004/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1450.0,560.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-90.406044,39.302166]}},{"type":"Feature","properties":{"resourceCoords":[810.0,560.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-90.4076233,39.3021714]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104cm:g017701914:01770_1914-0005/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Carrollton, Illinois | 1914 | sanborn01770_005 p5","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.97"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-20T01:21:15Z","modified":"2026-10-20T01:21:15Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104cm:g017701914:01770_1914-0005/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104cm:g017701914:01770_1914-0005","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1503.7,1622.2 1502.1,1877.1 908.0,1864.9 908.1,1912.0 899.1,1912.0 899.6,1852.8 416.6,1846.4 357.9,1848.2 37.3,1842.8 29.9,1525.2 29.4,1207.6 33.4,884.0 40.0,660.6 38.8,561.4 56.9,560.9 37.2,95.8 109.7,45.2 757.8,14.3 1428.0,98.5 1471.0,40.7 1563.0,177.8 1548.0,572.7 1557.2,572.9 1540.1,1215.5 1496.5,1213.8 1499.8,1313.6 1503.7,1622.2\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104cm:g017701914:01770_1914-0005/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[984.0,561.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-90.40375639654297,39.302160778950224]}},{"type":"Feature","properties":{"resourceCoords":[64.0,561.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-90.4059830421088,39.30216648910925]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104cm:g017701914:01770_1914-0006/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Carrollton, Illinois | 1914 | sanborn01770_005 p6","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.87"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-20T01:21:15Z","modified":"2026-10-20T01:21:15Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104cm:g017701914:01770_1914-0006/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104cm:g017701914:01770_1914-0006","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"7.5,1695.8 18.5,1696.0 70.1,1883.2 1548.0,1866.8 1612.0,626.3 1612.0,614.7 1565.7,71.4 87.5,30.1 64.2,1.0 63.4,1.0 49.7,390.0 58.9,390.2 43.6,1033.5 1.0,1032.0 1.0,1072.2 3.6,1131.8 8.4,1440.7 7.5,1695.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104cm:g017701914:01770_1914-0006/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1078.0,392.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-90.39990515501734,39.30211981215194]}},{"type":"Feature","properties":{"resourceCoords":[47.0,1685.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-90.40241732454433,39.299712497772845]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104cm:g017701914:01770_1914-0007/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Carrollton, Illinois | 1914 | sanborn01770_005 p7","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.69"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-20T01:21:15Z","modified":"2026-10-20T01:21:15Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104cm:g017701914:01770_1914-0007/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104cm:g017701914:01770_1914-0007","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1528.1,1889.0 1530.5,1375.8 1509.4,1375.9 1511.6,1058.5 1507.5,416.2 1513.0,90.7 923.1,82.0 871.5,84.0 550.6,79.2 500.3,81.0 224.2,70.7 1.0,71.8 1.0,73.9 61.5,201.2 22.0,964.2 41.0,1849.1 1461.5,1892.2 1528.1,1889.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104cm:g017701914:01770_1914-0007/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-90.41127852434211,39.29994871526895]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-90.40739827141525,39.2999332519383]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-90.40742180386817,39.296346865495146]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-90.41130205679504,39.29636232882579]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104cm:g017701914:01770_1914-0008__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Carrollton, Illinois | 1914 | sanborn01770_005 p8 [1]","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.94"},{"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":"2026-10-20T01:21:15Z","modified":"2026-10-20T01:21:15Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104cm:g017701914:01770_1914-0008__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104cm:g017701914:01770_1914-0008","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"48.2,1884.5 474.0,1863.0 517.5,1877.1 1017.1,1866.6 1074.6,1808.7 1114.0,1441.8 1114.0,1430.0 1115.3,1430.0 1115.5,1427.4 1506.5,1417.6 1571.3,1366.8 1563.2,148.4 1554.1,149.5 1554.5,89.4 1068.8,84.6 1009.9,86.6 687.5,82.3 362.7,80.4 30.5,87.7 25.5,412.9 30.6,1054.8 28.8,1371.8 49.9,1371.8 48.2,1884.5\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104cm:g017701914:01770_1914-0008__1/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-90.40771185084245,39.29992899843754]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-90.4038286373606,39.29990891966756]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-90.40385919366103,39.296319792840016]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-90.40774240714288,39.296339871609995]}}]}}]}