{"id":"https://data.mapsnap.org/runs/v2.0/iiif/chronoscope/sanborn01761_004.main.iiif.json","type":"AnnotationPage","@context":["http://www.w3.org/ns/anno.jsonld"],"label":"Cambridge, Illinois | 1907 | 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":"7"},{"label":"placed","value":"5"},{"label":"unplaced","value":"2"},{"label":"fit sources","value":"georef 3, georef-snap 2"},{"label":"key map","value":"none"},{"label":"split sheets","value":"2 sheet(s) cut into 4 panels"},{"label":"unplaced pages","value":"p1__2 (tier 4, 41.30263,-90.19386 +/-377m); p4__1 (tier 1, 41.29543,-90.19675 +/-100m)"}],"items":[{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104cm:g017611907:01761_1907-0001__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Cambridge, Illinois | 1907 | sanborn01761_004 p1 [1]","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.91"},{"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":"2026-10-19T16:48:27Z","modified":"2026-10-19T16:48:27Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104cm:g017611907:01761_1907-0001__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104cm:g017611907:01761_1907-0001","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1531.0,1873.5 1589.4,1814.9 1610.6,1606.4 1572.6,484.7 745.7,479.0 745.0,474.2 739.1,474.2 739.4,430.3 687.3,26.1 126.5,27.1 54.8,127.9 34.9,124.2 72.6,292.4 74.0,714.0 71.1,1250.2 60.1,1874.1 778.8,1888.0 1480.2,1881.0 1480.2,1878.3 1531.0,1873.5\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104cm:g017611907:01761_1907-0001__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1496.0,1142.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-90.18920348725709,41.30406450646943]}},{"type":"Feature","properties":{"resourceCoords":[98.0,1254.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-90.19269521411383,41.30385913703116]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104cm:g017611907:01761_1907-0002/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Cambridge, Illinois | 1907 | sanborn01761_004 p2","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"13"},{"label":"confidence","value":"0.98"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-19T16:48:27Z","modified":"2026-10-19T16:48:27Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104cm:g017611907:01761_1907-0002/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104cm:g017611907:01761_1907-0002","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"71.9,891.9 41.0,346.4 105.3,33.4 811.1,67.3 1043.7,22.9 1489.5,104.9 1527.9,275.0 1530.0,701.5 1528.0,1244.0 1517.9,1875.2 805.9,1856.5 198.7,1849.7 169.5,1815.7 55.4,1365.4 26.2,1365.2 71.9,891.9\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104cm:g017611907:01761_1907-0002/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1528.0,1244.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-90.1927623,41.3038663]}},{"type":"Feature","properties":{"resourceCoords":[215.0,702.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-90.1959988,41.3048797]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104cm:g017611907:01761_1907-0003/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Cambridge, Illinois | 1907 | sanborn01761_004 p3","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.90"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-19T16:48:27Z","modified":"2026-10-19T16:48:27Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104cm:g017611907:01761_1907-0003/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104cm:g017611907:01761_1907-0003","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1.0,186.8 1.0,216.2 36.0,219.3 89.2,479.6 23.7,1168.3 80.5,1783.4 465.4,1888.2 1573.2,1855.5 1586.4,993.4 1525.2,668.1 1564.0,204.2 1612.0,197.7 1612.0,140.1 1387.4,86.7 1374.5,47.7 1393.0,39.0 1119.7,38.8 1120.2,100.7 502.1,117.4 501.7,73.5 481.2,41.3 447.6,70.6 1.0,186.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104cm:g017611907:01761_1907-0003/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1118.0,1718.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-90.20022147201385,41.30159663339701]}},{"type":"Feature","properties":{"resourceCoords":[490.0,1718.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-90.20020597792367,41.302766282992316]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104cm:g017611907:01761_1907-0004__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Cambridge, Illinois | 1907 | sanborn01761_004 p4 [2]","metadata":[{"label":"streets","value":"5"},{"label":"intersections","value":"9"},{"label":"confidence","value":"0.98"},{"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":"2026-10-19T16:48:27Z","modified":"2026-10-19T16:48:27Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104cm:g017611907:01761_1907-0004__2/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104cm:g017611907:01761_1907-0004","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"210.0,700.0 205.7,1373.1 482.0,1374.0 513.4,1812.0 1016.1,1867.2 1511.4,1843.0 1473.3,1781.3 1518.4,1780.9 1512.0,700.0 1512.6,90.8 810.0,73.2 210.9,67.1 178.8,87.3 135.3,87.4 148.7,700.1 210.0,700.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104cm:g017611907:01761_1907-0004__2/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1512.0,700.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-90.1928012,41.301551]}},{"type":"Feature","properties":{"resourceCoords":[210.0,700.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-90.1960583,41.3015623]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104cm:g017611907:01761_1907-0005/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Cambridge, Illinois | 1907 | sanborn01761_004 p5","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"14"},{"label":"confidence","value":"0.98"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-19T16:48:27Z","modified":"2026-10-19T16:48:27Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104cm:g017611907:01761_1907-0005/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104cm:g017611907:01761_1907-0005","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"57.2,711.2 53.5,99.4 774.0,106.2 1477.0,92.0 1477.0,89.4 1527.8,84.0 1514.5,97.7 1580.0,147.3 1592.4,586.9 1505.5,1157.4 1565.7,1373.0 1571.7,1877.5 547.5,1831.9 64.9,1858.9 26.3,1797.2 71.5,1796.5 57.2,711.2\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104cm:g017611907:01761_1907-0005/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[770.0,702.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-90.1910254,41.3015524]}},{"type":"Feature","properties":{"resourceCoords":[1477.0,92.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-90.1892462,41.3026783]}}]}}]}