{"id":"https://data.mapsnap.org/runs/v2.0/iiif/chronoscope/sanborn02090_005.main.iiif.json","type":"AnnotationPage","@context":["http://www.w3.org/ns/anno.jsonld"],"label":"Peru, Illinois | 1909 | 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":"24"},{"label":"placed","value":"14"},{"label":"unplaced","value":"10"},{"label":"fit sources","value":"georef-snap 8, georef 6"},{"label":"key map","value":"georeferenced"},{"label":"split sheets","value":"5 sheet(s) cut into 18 panels"},{"label":"unplaced pages","value":"p10__2 (tier 1, 41.32719,-89.11968 +/-100m); p10__4 (tier 1, 41.32979,-89.12304 +/-100m); p10__5 (tier 1, 41.32778,-89.11897 +/-100m); p10__6 (tier 1, 41.32716,-89.11958 +/-100m); p10__7 (tier 2, 41.32754,-89.11913 +/-100m); p4__1 (tier 1, 41.32334,-89.12692 +/-208m); p4__2 (tier 1, 41.32323,-89.12812 +/-226m); p6 (tier 3, 41.32578,-89.11499 +/-730m); p7 (tier 3, 41.32572,-89.11044 +/-730m); p8 (tier 1, 41.32920,-89.10769 +/-262m)"}],"items":[{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104pm:g020901909:02090_1909-0010__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Peru, Illinois | 1909 | sanborn02090_005 p10 [1]","metadata":[{"label":"streets","value":"2"},{"label":"intersections","value":"1"},{"label":"confidence","value":"0.76"},{"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":"1056.0"},{"label":"split_canvas_h","value":"1586.0"}],"created":"2026-10-20T03:35:53Z","modified":"2026-10-20T03:35:53Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104pm:g020901909:02090_1909-0010__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104pm:g020901909:02090_1909-0010","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"247.7,349.3 254.1,98.2 200.3,20.1 1.0,59.3 1.0,325.0 10.2,378.1 247.7,349.3\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104pm:g020901909:02090_1909-0010__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":[-89.12380302335156,41.32711367026934]}},{"type":"Feature","properties":{"resourceCoords":[264.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-89.12312205946594,41.32712655798212]}},{"type":"Feature","properties":{"resourceCoords":[264.0,396.5],"type":"corner"},"geometry":{"type":"Point","coordinates":[-89.12309630278244,41.326359916163554]}},{"type":"Feature","properties":{"resourceCoords":[0.0,396.5],"type":"corner"},"geometry":{"type":"Point","coordinates":[-89.12377726666806,41.326347028450776]}},{"type":"Feature","properties":{"resourceCoords":[70.0,350.4],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-89.1235997,41.3264395]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104pm:g020901909:02090_1909-0010__10/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Peru, Illinois | 1909 | sanborn02090_005 p10 [10]","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.95"},{"label":"confidence_provisional","value":"true"},{"label":"confidence_model","value":"corpus-v2"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"3609.2"},{"label":"split_canvas_w","value":"6452.0"},{"label":"split_canvas_h","value":"4042.8"}],"created":"2026-10-20T03:35:53Z","modified":"2026-10-20T03:35:53Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104pm:g020901909:02090_1909-0010__10/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104pm:g020901909:02090_1909-0010","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"17.9,1733.7 27.6,1733.7 26.1,1879.5 543.2,1875.0 1064.0,1877.9 1515.7,1881.9 1583.3,1822.0 1579.1,1410.3 1574.0,1410.2 1577.5,1254.8 1574.2,939.5 77.6,926.1 34.7,967.9 17.9,1733.7\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104pm:g020901909:02090_1909-0010__10/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[542.0,938.3],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-89.13052811955417,41.331228161963026]}},{"type":"Feature","properties":{"resourceCoords":[35.0,938.3],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-89.13181805542507,41.33121487997077]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104pm:g020901909:02090_1909-0010__3/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Peru, Illinois | 1909 | sanborn02090_005 p10 [3]","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":"2074.0"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"1150.0"},{"label":"split_canvas_h","value":"1586.0"}],"created":"2026-10-20T03:35:53Z","modified":"2026-10-20T03:35:53Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104pm:g020901909:02090_1909-0010__3/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104pm:g020901909:02090_1909-0010","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"553.1,54.5 555.5,333.5 785.3,309.4 789.6,44.5 553.1,54.5\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104pm:g020901909:02090_1909-0010__3/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[518.5,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-89.12668221559137,41.330035270040675]}},{"type":"Feature","properties":{"resourceCoords":[806.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-89.12593920986603,41.33004442443157]}},{"type":"Feature","properties":{"resourceCoords":[806.0,396.5],"type":"corner"},"geometry":{"type":"Point","coordinates":[-89.12592243901949,41.329277642227986]}},{"type":"Feature","properties":{"resourceCoords":[518.5,396.5],"type":"corner"},"geometry":{"type":"Point","coordinates":[-89.12666544474483,41.32926848783709]}},{"type":"Feature","properties":{"resourceCoords":[569.4,298.4],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-89.126538,41.3294589]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104pm:g020901909:02090_1909-0010__8/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Peru, Illinois | 1909 | sanborn02090_005 p10 [8]","metadata":[{"label":"streets","value":"2"},{"label":"intersections","value":"1"},{"label":"confidence","value":"0.71"},{"label":"confidence_provisional","value":"true"},{"label":"confidence_model","value":"corpus-v2"},{"label":"split_canvas_x","value":"4559.2"},{"label":"split_canvas_y","value":"1586.0"},{"label":"split_canvas_w","value":"1892.8"},{"label":"split_canvas_h","value":"2036.8"}],"created":"2026-10-20T03:35:53Z","modified":"2026-10-20T03:35:53Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104pm:g020901909:02090_1909-0010__8/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104pm:g020901909:02090_1909-0010","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1159.5,894.8 1590.4,899.5 1595.6,412.6 1157.8,407.9 1159.5,894.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104pm:g020901909:02090_1909-0010__8/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[1139.8,396.5],"type":"corner"},"geometry":{"type":"Point","coordinates":[-89.12983474727267,41.333486936448615]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,396.5],"type":"corner"},"geometry":{"type":"Point","coordinates":[-89.12861179012944,41.33349684132043]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,905.7],"type":"corner"},"geometry":{"type":"Point","coordinates":[-89.12859759094084,41.33250924323638]}},{"type":"Feature","properties":{"resourceCoords":[1139.8,905.7],"type":"corner"},"geometry":{"type":"Point","coordinates":[-89.12982054808407,41.33249933836456]}},{"type":"Feature","properties":{"resourceCoords":[1381.4,596.2],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-89.1292048,41.3331047]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104pm:g020901909:02090_1909-0010__9/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Peru, Illinois | 1909 | sanborn02090_005 p10 [9]","metadata":[{"label":"streets","value":"2"},{"label":"intersections","value":"1"},{"label":"confidence","value":"0.81"},{"label":"confidence_provisional","value":"true"},{"label":"confidence_model","value":"corpus-v2"},{"label":"split_canvas_x","value":"3676.0"},{"label":"split_canvas_y","value":"2784.8"},{"label":"split_canvas_w","value":"897.2"},{"label":"split_canvas_h","value":"845.2"}],"created":"2026-10-20T03:35:53Z","modified":"2026-10-20T03:35:53Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104pm:g020901909:02090_1909-0010__9/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104pm:g020901909:02090_1909-0010","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1135.5,900.9 1131.5,706.5 929.2,710.3 929.8,904.8 1135.5,900.9\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104pm:g020901909:02090_1909-0010__9/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[919.0,696.2],"type":"corner"},"geometry":{"type":"Point","coordinates":[-89.13456631583567,41.32588415723469]}},{"type":"Feature","properties":{"resourceCoords":[1143.3,696.2],"type":"corner"},"geometry":{"type":"Point","coordinates":[-89.13341050813155,41.325897401494885]}},{"type":"Feature","properties":{"resourceCoords":[1143.3,907.5],"type":"corner"},"geometry":{"type":"Point","coordinates":[-89.13339380728904,41.32507638743633]}},{"type":"Feature","properties":{"resourceCoords":[919.0,907.5],"type":"corner"},"geometry":{"type":"Point","coordinates":[-89.13454961499316,41.32506314317614]}},{"type":"Feature","properties":{"resourceCoords":[954.0,728.1],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-89.1343832,41.3257623]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104pm:g020901909:02090_1909-0011__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Peru, Illinois | 1909 | sanborn02090_005 p11 [1]","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.67"},{"label":"confidence_provisional","value":"true"},{"label":"confidence_model","value":"corpus-v2"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"3065.6"},{"label":"split_canvas_w","value":"6452.0"},{"label":"split_canvas_h","value":"4586.4"}],"created":"2026-10-20T03:35:53Z","modified":"2026-10-20T03:35:53Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104pm:g020901909:02090_1909-0011__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104pm:g020901909:02090_1909-0011","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1612.0,1327.8 1612.0,1299.5 1587.0,1306.1 1563.1,835.6 184.4,780.7 68.5,833.0 70.9,1843.4 1022.1,1908.2 1091.2,1910.3 1587.1,1839.8 1594.5,1843.8 1612.0,1327.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104pm:g020901909:02090_1909-0011__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1566.0,1855.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-89.11843264077437,41.32756657859032]}},{"type":"Feature","properties":{"resourceCoords":[110.0,1855.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-89.12210738698336,41.32745663893322]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104pm:g020901909:02090_1909-0011__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Peru, Illinois | 1909 | sanborn02090_005 p11 [2]","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.20"},{"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":"3065.6"}],"created":"2026-10-20T03:35:53Z","modified":"2026-10-20T03:35:53Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104pm:g020901909:02090_1909-0011__2/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104pm:g020901909:02090_1909-0011","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"72.8,81.3 55.7,664.0 212.0,749.1 1436.2,761.9 1568.2,469.8 1456.3,191.9 1035.4,47.6 792.0,46.7 537.9,136.6 386.2,123.7 267.9,28.2 72.8,81.3\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104pm:g020901909:02090_1909-0011__2/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1260.0,676.4],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-89.11551669555948,41.327643334101076]}},{"type":"Feature","properties":{"resourceCoords":[75.0,727.4],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-89.11831112007782,41.327478729890665]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104pm:g020901909:02090_1909-0012__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Peru, Illinois | 1909 | sanborn02090_005 p12 [1]","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"8"},{"label":"confidence","value":"0.58"},{"label":"confidence_provisional","value":"true"},{"label":"confidence_model","value":"corpus-v2"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"5089.6"},{"label":"split_canvas_w","value":"6452.0"},{"label":"split_canvas_h","value":"2562.4"}],"created":"2026-10-20T03:35:53Z","modified":"2026-10-20T03:35:53Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104pm:g020901909:02090_1909-0012__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104pm:g020901909:02090_1909-0012","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1095.1,1871.9 1526.1,1883.2 1520.0,1866.9 1575.8,1834.5 1587.3,1486.2 1534.5,1429.8 1545.2,1420.7 1108.0,1408.3 603.8,1395.7 133.5,1390.7 99.6,1858.1 367.1,1861.8 599.2,1868.5 1095.1,1871.7 1095.1,1871.9\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104pm:g020901909:02090_1909-0012__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1108.0,1408.3],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-89.1291672,41.3294462]}},{"type":"Feature","properties":{"resourceCoords":[95.0,1858.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-89.1317881,41.3284926]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104pm:g020901909:02090_1909-0012__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Peru, Illinois | 1909 | sanborn02090_005 p12 [2]","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.97"},{"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":"5089.6"}],"created":"2026-10-20T03:35:53Z","modified":"2026-10-20T03:35:53Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104pm:g020901909:02090_1909-0012__2/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104pm:g020901909:02090_1909-0012","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1564.9,209.1 623.2,207.2 623.2,202.5 144.2,176.7 144.4,207.8 1.0,206.3 1.0,215.9 87.2,217.9 28.5,399.0 72.3,1225.3 1512.7,1267.5 1555.0,1240.2 1549.1,218.5 1565.0,217.9 1564.9,209.1\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104pm:g020901909:02090_1909-0012__2/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1090.0,722.2],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-89.13309255449128,41.32757782099063]}},{"type":"Feature","properties":{"resourceCoords":[154.0,722.2],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-89.13312798662504,41.329382899741695]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104pm:g020901909:02090_1909-0002/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Peru, Illinois | 1909 | sanborn02090_005 p2","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.96"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-20T03:35:53Z","modified":"2026-10-20T03:35:53Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104pm:g020901909:02090_1909-0002/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104pm:g020901909:02090_1909-0002","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"36.3,950.4 77.5,1879.8 294.1,1882.0 1576.0,1880.3 1576.9,1420.0 1568.0,945.3 1564.1,472.4 1538.2,64.7 1525.5,67.4 1498.4,1.0 1006.4,1.0 553.6,9.7 317.0,9.0 39.7,12.3 45.0,950.2 36.3,950.4\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104pm:g020901909:02090_1909-0002/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[557.0,945.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-89.13043708438101,41.32669372693244]}},{"type":"Feature","properties":{"resourceCoords":[1553.0,32.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-89.1278854726612,41.32847541471965]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104pm:g020901909:02090_1909-0003/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Peru, Illinois | 1909 | sanborn02090_005 p3","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.97"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-20T03:35:53Z","modified":"2026-10-20T03:35:53Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104pm:g020901909:02090_1909-0003/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104pm:g020901909:02090_1909-0003","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"232.9,16.6 1100.5,24.6 1183.5,123.3 1547.2,140.7 1510.7,301.2 1576.0,819.6 1612.0,812.0 1612.0,1062.9 1580.7,1071.5 1581.1,1785.2 1612.0,1782.0 1612.0,1804.0 1243.8,1912.0 1042.2,1912.0 1041.4,1885.2 62.5,1884.6 64.3,1422.3 56.3,945.5 53.5,470.5 28.2,60.9 232.9,16.6\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104pm:g020901909:02090_1909-0003/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1116.0,1112.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-89.12510569313542,41.32640473377315]}},{"type":"Feature","properties":{"resourceCoords":[70.0,938.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-89.12779520812275,41.326721711363305]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104pm:g020901909:02090_1909-0005__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Peru, Illinois | 1909 | sanborn02090_005 p5 [1]","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.46"},{"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":"3182.8"},{"label":"split_canvas_h","value":"7652.0"}],"created":"2026-10-20T03:35:53Z","modified":"2026-10-20T03:35:53Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104pm:g020901909:02090_1909-0005__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104pm:g020901909:02090_1909-0005","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1.0,1526.6 1.0,1603.5 126.4,1646.0 156.3,1760.3 254.9,1790.5 685.5,1778.3 731.9,1656.4 685.1,1528.4 758.4,1336.0 750.4,84.3 770.6,67.1 634.9,49.0 268.0,40.0 260.6,59.3 158.4,115.8 94.0,304.2 65.9,609.4 131.2,707.7 50.2,1026.4 70.5,1033.9 44.4,1409.5 1.0,1526.6\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104pm:g020901909:02090_1909-0005__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[-75.0,1028.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-89.12393710918363,41.3253507417133]}},{"type":"Feature","properties":{"resourceCoords":[-196.9,1569.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-89.12537388127203,41.32519636834453]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104pm:g020901909:02090_1909-0005__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Peru, Illinois | 1909 | sanborn02090_005 p5 [2]","metadata":[{"label":"streets","value":"4"},{"label":"intersections","value":"2"},{"label":"confidence","value":"0.03"},{"label":"confidence_provisional","value":"true"},{"label":"confidence_model","value":"corpus-v2"},{"label":"split_canvas_x","value":"3119.6"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"3332.4"},{"label":"split_canvas_h","value":"7652.0"}],"created":"2026-10-20T03:35:53Z","modified":"2026-10-20T03:35:53Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104pm:g020901909:02090_1909-0005__2/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104pm:g020901909:02090_1909-0005","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"843.5,1799.5 1253.9,1846.0 1404.3,1879.7 1523.8,1795.0 1559.9,1632.1 1503.3,934.4 1589.8,649.9 1466.0,108.5 1192.1,18.4 999.0,44.9 876.2,174.2 909.0,903.4 834.6,1339.8 900.8,1681.3 843.5,1799.5\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104pm:g020901909:02090_1909-0005__2/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1287.3,1722.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-89.1205882,41.3247733]}},{"type":"Feature","properties":{"resourceCoords":[888.8,1527.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-89.1205854,41.3255483]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104pm:g020901909:02090_1909-0009/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Peru, Illinois | 1909 | sanborn02090_005 p9","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.79"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-20T03:35:53Z","modified":"2026-10-20T03:35:53Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104pm:g020901909:02090_1909-0009/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104pm:g020901909:02090_1909-0009","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1013.5,1799.2 810.3,1809.0 703.8,1884.4 46.0,1870.8 27.9,383.0 77.2,31.6 1540.0,40.8 1561.3,1711.8 1524.3,1809.8 1235.8,1881.3 1013.5,1799.2\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104pm:g020901909:02090_1909-0009/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-89.10932255755398,41.33142985655211]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-89.10923729310365,41.32832132523018]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-89.11411238422193,41.32824485335982]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-89.11419764867226,41.331353384681755]}}]}}]}