{"id":"https://data.mapsnap.org/runs/v1.3/iiif/loc/sanborn01816_005.main.iiif.json","type":"AnnotationPage","@context":["http://www.w3.org/ns/anno.jsonld"],"label":"Danville, Illinois | 1909 | mapsnap generated fit (2026-09-22)","creator":{"type":"Software","name":"mapsnap","homepage":"https://mapsnap.org"},"rights":"https://opendatacommons.org/licenses/odbl/1-0/","metadata":[{"label":"generated","value":"2026-09-22"},{"label":"run","value":"corpus-v1"},{"label":"pages","value":"78"},{"label":"placed","value":"40"},{"label":"unplaced","value":"38"},{"label":"fit sources","value":"georef 27, georef-snap 13"},{"label":"key map","value":"georeferenced"},{"label":"split sheets","value":"16 sheet(s) cut into 58 panels"},{"label":"unplaced pages","value":"p1 (tier 3, 40.12396,-87.59017 +/-647m); p26__1 (tier 1, 40.13380,-87.61939 +/-100m); p28__1 (tier 1, 40.13782,-87.61085 +/-103m); p2__1 (tier 1, 40.12165,-87.62729 +/-267m); p2__2 (tier 1, 40.12338,-87.62731 +/-100m); p2__3 (tier 1, 40.12344,-87.62974 +/-100m); p30__1 (tier 4, 40.13107,-87.62522 +/-3048m); p30__2 (tier 4, 40.13107,-87.62522 +/-3048m); p32__1 (tier 1, 40.13502,-87.59173 +/-115m); p32__2 (tier 1, 40.13504,-87.59415 +/-100m); p32__3 (tier 1, 40.13508,-87.59453 +/-100m); p32__4 (tier 1, 40.13523,-87.59494 +/-100m); p32__5 (tier 1, 40.13530,-87.59435 +/-100m); p33__11 (tier 3, 40.13081,-87.61545 +/-2898m); p33__12 (tier 1, 40.12744,-87.61142 +/-100m); p33__3 (tier 1, 40.12832,-87.61196 +/-100m); p33__4 (tier 3, 40.13081,-87.61545 +/-2898m); p33__5 (tier 1, 40.12747,-87.59627 +/-100m); p33__7 (tier 1, 40.12839,-87.61201 +/-100m); p33__8 (tier 1, 40.12687,-87.61127 +/-100m); p34__2 (tier 1, 40.13463,-87.61034 +/-100m); p34__5 (tier 1, 40.10950,-87.63784 +/-130m); p34__6 (tier 1, 40.13029,-87.61613 +/-100m); p35__1 (tier 1, 40.12541,-87.64617 +/-223m); p35__2 (tier 1, 40.12678,-87.64612 +/-100m); p35__3 (tier 1, 40.12958,-87.60147 +/-100m); p35__4 (tier 1, 40.13015,-87.60269 +/-108m); p36__1 (tier 4, 40.13107,-87.62522 +/-3048m); p36__2 (tier 4, 40.13107,-87.62522 +/-3048m); p36__3 (tier 4, 40.13107,-87.62522 +/-3048m); p4__2 (tier 2, 40.12264,-87.61943 +/-100m); p5__1 (tier 1, 40.12414,-87.64850 +/-114m); p5__2 (tier 1, 40.12470,-87.63671 +/-232m); p5__4 (tier 1, 40.12577,-87.64823 +/-100m); p5__5 (tier 1, 40.12469,-87.64827 +/-107m); p6__2 (tier 3, 40.12419,-87.63325 +/-647m); p8__1 (tier 1, 40.12601,-87.62816 +/-100m); p8__3 (tier 1, 40.12514,-87.62790 +/-100m)"}],"items":[{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd410m:g4104m:g4104dm:g018161909:01816_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":"Danville, Illinois | 1909 | sanborn01816_005 p10 [1]","metadata":[{"label":"streets","value":"7"},{"label":"intersections","value":"8"},{"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":"2026-09-22T15:00:36Z","modified":"2026-09-22T15:00:36Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd410m:g4104m:g4104dm:g018161909:01816_1909-0010__1/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd410m:g4104m:g4104dm:g018161909:01816_1909-0010/info.json","type":"ImageService2","height":7652,"width":6452},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"6452.0,3467.1 6452.0,-0.0 4076.4,0.0 4078.8,1482.0 2695.2,1481.2 2349.6,0.0 -0.0,0.0 -0.0,598.2 -0.0,7253.6 5638.6,7228.4 5640.6,7652.0 6297.5,7652.0 6273.6,3468.2 6452.0,3467.1\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd410m:g4104m:g4104dm:g018161909:01816_1909-0010__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[4240.0,4448.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-87.6188062,40.1235822]}},{"type":"Feature","properties":{"resourceCoords":[4240.0,604.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-87.6164735,40.1235917]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd410m:g4104m:g4104dm:g018161909:01816_1909-0010__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Danville, Illinois | 1909 | sanborn01816_005 p10 [2]","metadata":[{"label":"streets","value":"2"},{"label":"intersections","value":"1"},{"label":"split_canvas_x","value":"2349.6"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"1729.2"},{"label":"split_canvas_h","value":"1482.0"}],"created":"2026-09-22T15:00:36Z","modified":"2026-09-22T15:00:36Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd410m:g4104m:g4104dm:g018161909:01816_1909-0010__2/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd410m:g4104m:g4104dm:g018161909:01816_1909-0010/info.json","type":"ImageService2","height":7652,"width":6452},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"2349.6,-0.0 2629.1,1197.7 4078.2,1097.7 4076.4,0.0 2349.6,-0.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd410m:g4104m:g4104dm:g018161909:01816_1909-0010__2/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[2349.6,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-87.61721569957464,40.12421547300967]}},{"type":"Feature","properties":{"resourceCoords":[4078.8,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-87.61713931436604,40.12501719248515]}},{"type":"Feature","properties":{"resourceCoords":[4078.8,1482.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-87.61624287685038,40.12496731100469]}},{"type":"Feature","properties":{"resourceCoords":[2349.6,1482.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-87.61631926205898,40.124165591529206]}},{"type":"Feature","properties":{"resourceCoords":[3811.2,1113.5],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-87.6164776,40.1248556]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd410m:g4104m:g4104dm:g018161909:01816_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":"Danville, Illinois | 1909 | sanborn01816_005 p11 [1]","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"9"},{"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":"2026-09-22T15:00:36Z","modified":"2026-09-22T15:00:36Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd410m:g4104m:g4104dm:g018161909:01816_1909-0011__1/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd410m:g4104m:g4104dm:g018161909:01816_1909-0011/info.json","type":"ImageService2","height":7652,"width":6452},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"6452.0,90.1 361.9,154.6 277.9,7169.7 66.2,7652.0 4560.4,7652.0 4571.6,5598.4 6452.0,5548.4 6452.0,90.1\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd410m:g4104m:g4104dm:g018161909:01816_1909-0011__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[2160.0,6160.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-87.6392921,40.1282219]}},{"type":"Feature","properties":{"resourceCoords":[6220.0,2072.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-87.6367834,40.1263074]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd410m:g4104m:g4104dm:g018161909:01816_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":"Danville, Illinois | 1909 | sanborn01816_005 p11 [2]","metadata":[{"label":"streets","value":"2"},{"label":"intersections","value":"1"},{"label":"split_canvas_x","value":"4560.4"},{"label":"split_canvas_y","value":"5548.4"},{"label":"split_canvas_w","value":"1891.6"},{"label":"split_canvas_h","value":"2103.6"}],"created":"2026-09-22T15:00:36Z","modified":"2026-09-22T15:00:36Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd410m:g4104m:g4104dm:g018161909:01816_1909-0011__2/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd410m:g4104m:g4104dm:g018161909:01816_1909-0011/info.json","type":"ImageService2","height":7652,"width":6452},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"6452.0,5548.4 4571.6,5598.4 4560.4,7652.0 6452.0,7652.0 6452.0,5548.4\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd410m:g4104m:g4104dm:g018161909:01816_1909-0011__2/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[4560.4,5548.4],"type":"corner"},"geometry":{"type":"Point","coordinates":[-87.63570856028763,40.13882789092776]}},{"type":"Feature","properties":{"resourceCoords":[6452.0,5548.4],"type":"corner"},"geometry":{"type":"Point","coordinates":[-87.63565816309487,40.13707211376066]}},{"type":"Feature","properties":{"resourceCoords":[6452.0,7652.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-87.63821308577955,40.13702928384815]}},{"type":"Feature","properties":{"resourceCoords":[4560.4,7652.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-87.6382634829723,40.13878506101525]}},{"type":"Feature","properties":{"resourceCoords":[5024.3,6444.2],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-87.6367818,40.1383791]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd410m:g4104m:g4104dm:g018161909:01816_1909-0012/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Danville, Illinois | 1909 | sanborn01816_005 p12","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-22T15:00:36Z","modified":"2026-09-22T15:00:36Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd410m:g4104m:g4104dm:g018161909:01816_1909-0012/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd410m:g4104m:g4104dm:g018161909:01816_1909-0012/info.json","type":"ImageService2","height":7652,"width":6452},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"6110.7,301.2 6121.9,7248.1 206.6,7249.6 326.7,287.6 6110.7,301.2\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd410m:g4104m:g4104dm:g018161909:01816_1909-0012/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-87.6312149076109,40.12918501364149]}},{"type":"Feature","properties":{"resourceCoords":[6452.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-87.63118258818395,40.126182730455454]}},{"type":"Feature","properties":{"resourceCoords":[6452.0,7652.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-87.63580680669638,40.12615321576973]}},{"type":"Feature","properties":{"resourceCoords":[0.0,7652.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-87.63583912612333,40.12915549895577]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd410m:g4104m:g4104dm:g018161909:01816_1909-0013/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Danville, Illinois | 1909 | sanborn01816_005 p13","metadata":[{"label":"streets","value":"9"},{"label":"intersections","value":"13"}],"created":"2026-09-22T15:00:36Z","modified":"2026-09-22T15:00:36Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd410m:g4104m:g4104dm:g018161909:01816_1909-0013/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd410m:g4104m:g4104dm:g018161909:01816_1909-0013/info.json","type":"ImageService2","height":7652,"width":6452},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"6132.6,302.0 6161.8,7130.9 352.0,7172.0 339.7,4979.9 734.1,4913.8 340.0,4830.4 345.8,377.6 6132.6,302.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd410m:g4104m:g4104dm:g018161909:01816_1909-0013/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[2008.0,4904.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-87.6300141,40.1282635]}},{"type":"Feature","properties":{"resourceCoords":[352.0,7172.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-87.6313871,40.1290319]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd410m:g4104m:g4104dm:g018161909:01816_1909-0014/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Danville, Illinois | 1909 | sanborn01816_005 p14","metadata":[{"label":"streets","value":"5"},{"label":"intersections","value":"6"}],"created":"2026-09-22T15:00:36Z","modified":"2026-09-22T15:00:36Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd410m:g4104m:g4104dm:g018161909:01816_1909-0014/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd410m:g4104m:g4104dm:g018161909:01816_1909-0014/info.json","type":"ImageService2","height":7652,"width":6452},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"420.6,7404.3 460.0,5480.0 -0.0,5484.2 -0.0,0.0 6182.4,-0.0 6132.7,7401.5 420.6,7404.3\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd410m:g4104m:g4104dm:g018161909:01816_1909-0014/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[460.0,5480.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-87.6260889,40.1290229]}},{"type":"Feature","properties":{"resourceCoords":[6148.0,5480.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-87.6260491,40.1263533]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd410m:g4104m:g4104dm:g018161909:01816_1909-0015/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Danville, Illinois | 1909 | sanborn01816_005 p15","metadata":[{"label":"streets","value":"8"},{"label":"intersections","value":"14"}],"created":"2026-09-22T15:00:36Z","modified":"2026-09-22T15:00:36Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd410m:g4104m:g4104dm:g018161909:01816_1909-0015/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd410m:g4104m:g4104dm:g018161909:01816_1909-0015/info.json","type":"ImageService2","height":7652,"width":6452},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"-0.0,398.2 3869.1,382.5 4736.3,98.8 4730.2,441.8 6064.7,465.3 6084.6,7250.8 2522.8,7234.2 2031.3,7018.1 2030.9,7652.0 -0.0,7652.0 -0.0,398.2\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd410m:g4104m:g4104dm:g018161909:01816_1909-0015/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[4884.0,2360.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-87.6384806,40.1313557]}},{"type":"Feature","properties":{"resourceCoords":[856.0,5996.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-87.6409158,40.129682]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd410m:g4104m:g4104dm:g018161909:01816_1909-0016/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Danville, Illinois | 1909 | sanborn01816_005 p16","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-22T15:00:36Z","modified":"2026-09-22T15:00:36Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd410m:g4104m:g4104dm:g018161909:01816_1909-0016/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd410m:g4104m:g4104dm:g018161909:01816_1909-0016/info.json","type":"ImageService2","height":7652,"width":6452},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"-0.0,7301.2 -0.0,486.3 6197.3,612.9 6329.2,7459.7 -0.0,7301.2\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd410m:g4104m:g4104dm:g018161909:01816_1909-0016/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-87.63776622599227,40.13245247226721]}},{"type":"Feature","properties":{"resourceCoords":[6452.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-87.63391605123135,40.1324558088968]}},{"type":"Feature","properties":{"resourceCoords":[6452.0,7652.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-87.63391091181215,40.128939916279904]}},{"type":"Feature","properties":{"resourceCoords":[0.0,7652.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-87.63776108657306,40.128936579650315]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd410m:g4104m:g4104dm:g018161909:01816_1909-0017/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Danville, Illinois | 1909 | sanborn01816_005 p17","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-22T15:00:36Z","modified":"2026-09-22T15:00:36Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd410m:g4104m:g4104dm:g018161909:01816_1909-0017/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd410m:g4104m:g4104dm:g018161909:01816_1909-0017/info.json","type":"ImageService2","height":7652,"width":6452},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"94.1,7278.1 -0.0,-0.0 6371.3,0.0 6408.5,7652.0 6345.9,7273.9 94.1,7278.1\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd410m:g4104m:g4104dm:g018161909:01816_1909-0017/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-87.63405265809322,40.13254670850105]}},{"type":"Feature","properties":{"resourceCoords":[6452.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-87.63000158374477,40.13255304927805]}},{"type":"Feature","properties":{"resourceCoords":[6452.0,7652.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-87.62999181701497,40.12885370521108]}},{"type":"Feature","properties":{"resourceCoords":[0.0,7652.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-87.63404289136342,40.12884736443408]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd410m:g4104m:g4104dm:g018161909:01816_1909-0018/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Danville, Illinois | 1909 | sanborn01816_005 p18","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-22T15:00:36Z","modified":"2026-09-22T15:00:36Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd410m:g4104m:g4104dm:g018161909:01816_1909-0018/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd410m:g4104m:g4104dm:g018161909:01816_1909-0018/info.json","type":"ImageService2","height":7652,"width":6452},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"-0.0,-0.0 2224.7,0.0 2225.9,410.0 6452.0,457.4 6452.0,6828.3 6358.2,6828.7 6351.5,7281.8 84.7,7212.0 -0.0,7652.0 -0.0,-0.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd410m:g4104m:g4104dm:g018161909:01816_1909-0018/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-87.63005049392336,40.132473228807704]}},{"type":"Feature","properties":{"resourceCoords":[6452.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-87.62605676986716,40.13249374034868]}},{"type":"Feature","properties":{"resourceCoords":[6452.0,7652.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-87.62602517590338,40.12884675992226]}},{"type":"Feature","properties":{"resourceCoords":[0.0,7652.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-87.63001889995958,40.12882624838129]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd410m:g4104m:g4104dm:g018161909:01816_1909-0019/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Danville, Illinois | 1909 | sanborn01816_005 p19","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-22T15:00:36Z","modified":"2026-09-22T15:00:36Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd410m:g4104m:g4104dm:g018161909:01816_1909-0019/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd410m:g4104m:g4104dm:g018161909:01816_1909-0019/info.json","type":"ImageService2","height":7652,"width":6452},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"-0.0,7652.0 -0.0,-0.0 6452.0,0.0 6452.0,1042.5 6270.5,1039.1 6244.9,7015.8 5984.4,7203.5 5224.0,7346.3 1357.4,7358.1 1357.1,7652.0 -0.0,7652.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd410m:g4104m:g4104dm:g018161909:01816_1909-0019/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-87.642242434245,40.135687152772434]}},{"type":"Feature","properties":{"resourceCoords":[6452.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-87.63834572369252,40.13568468937318]}},{"type":"Feature","properties":{"resourceCoords":[6452.0,7652.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-87.63834951825238,40.13212646974147]}},{"type":"Feature","properties":{"resourceCoords":[0.0,7652.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-87.64224622880486,40.13212893314073]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd410m:g4104m:g4104dm:g018161909:01816_1909-0020/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Danville, Illinois | 1909 | sanborn01816_005 p20","metadata":[{"label":"streets","value":"7"},{"label":"intersections","value":"9"}],"created":"2026-09-22T15:00:36Z","modified":"2026-09-22T15:00:36Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd410m:g4104m:g4104dm:g018161909:01816_1909-0020/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd410m:g4104m:g4104dm:g018161909:01816_1909-0020/info.json","type":"ImageService2","height":7652,"width":6452},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"6452.0,7652.0 6107.1,7652.0 6054.0,7498.7 -0.0,7585.1 -0.0,349.5 6452.0,112.8 6452.0,7652.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd410m:g4104m:g4104dm:g018161909:01816_1909-0020/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1120.0,2728.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-87.6355531,40.1346442]}},{"type":"Feature","properties":{"resourceCoords":[3920.0,248.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-87.634097,40.133337]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd410m:g4104m:g4104dm:g018161909:01816_1909-0021/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Danville, Illinois | 1909 | sanborn01816_005 p21","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-22T15:00:36Z","modified":"2026-09-22T15:00:36Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd410m:g4104m:g4104dm:g018161909:01816_1909-0021/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd410m:g4104m:g4104dm:g018161909:01816_1909-0021/info.json","type":"ImageService2","height":7652,"width":6452},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"132.6,6658.4 50.0,0.0 4880.4,0.0 4885.4,929.9 6363.1,922.1 6432.1,6678.9 132.6,6658.4\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd410m:g4104m:g4104dm:g018161909:01816_1909-0021/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-87.63415921066749,40.13580185930869]}},{"type":"Feature","properties":{"resourceCoords":[6452.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-87.63006201046234,40.13581851230813]}},{"type":"Feature","properties":{"resourceCoords":[6452.0,7652.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-87.63003635855308,40.13207722411482]}},{"type":"Feature","properties":{"resourceCoords":[0.0,7652.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-87.63413355875824,40.13206057111539]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd410m:g4104m:g4104dm:g018161909:01816_1909-0022/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Danville, Illinois | 1909 | sanborn01816_005 p22","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-22T15:00:36Z","modified":"2026-09-22T15:00:36Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd410m:g4104m:g4104dm:g018161909:01816_1909-0022/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd410m:g4104m:g4104dm:g018161909:01816_1909-0022/info.json","type":"ImageService2","height":7652,"width":6452},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"6452.0,7320.4 2208.2,7233.5 2210.8,6827.8 9.5,6807.6 -0.0,-0.0 6452.0,0.0 6452.0,7320.4\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd410m:g4104m:g4104dm:g018161909:01816_1909-0022/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-87.63012399816972,40.13575155892789]}},{"type":"Feature","properties":{"resourceCoords":[6452.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-87.62608836875728,40.1358008801566]}},{"type":"Feature","properties":{"resourceCoords":[6452.0,7652.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-87.62601239550489,40.13211581091668]}},{"type":"Feature","properties":{"resourceCoords":[0.0,7652.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-87.63004802491733,40.13206648968797]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd410m:g4104m:g4104dm:g018161909:01816_1909-0023/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Danville, Illinois | 1909 | sanborn01816_005 p23","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"10"}],"created":"2026-09-22T15:00:36Z","modified":"2026-09-22T15:00:36Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd410m:g4104m:g4104dm:g018161909:01816_1909-0023/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd410m:g4104m:g4104dm:g018161909:01816_1909-0023/info.json","type":"ImageService2","height":7652,"width":6452},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"-0.0,731.0 5655.4,782.3 5654.8,6702.1 597.3,6675.3 604.0,7652.0 -0.0,7652.0 -0.0,731.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd410m:g4104m:g4104dm:g018161909:01816_1909-0023/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[2792.0,6520.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-87.6327974,40.1358848]}},{"type":"Feature","properties":{"resourceCoords":[4940.0,808.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-87.6315315,40.1385437]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd410m:g4104m:g4104dm:g018161909:01816_1909-0024/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Danville, Illinois | 1909 | sanborn01816_005 p24","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-22T15:00:36Z","modified":"2026-09-22T15:00:36Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd410m:g4104m:g4104dm:g018161909:01816_1909-0024/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd410m:g4104m:g4104dm:g018161909:01816_1909-0024/info.json","type":"ImageService2","height":7652,"width":6452},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"-0.0,7652.0 -0.0,761.9 732.0,735.3 736.2,0.0 6452.0,0.0 6452.0,6798.9 1550.3,6824.8 1555.8,7652.0 -0.0,7652.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd410m:g4104m:g4104dm:g018161909:01816_1909-0024/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-87.631102679768,40.138912930786496]}},{"type":"Feature","properties":{"resourceCoords":[6452.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-87.62721135719383,40.13894471023598]}},{"type":"Feature","properties":{"resourceCoords":[6452.0,7652.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-87.62716240256934,40.13539158033989]}},{"type":"Feature","properties":{"resourceCoords":[0.0,7652.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-87.63105372514352,40.135359800890406]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd410m:g4104m:g4104dm:g018161909:01816_1909-0025/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Danville, Illinois | 1909 | sanborn01816_005 p25","metadata":[{"label":"streets","value":"5"},{"label":"intersections","value":"6"}],"created":"2026-09-22T15:00:36Z","modified":"2026-09-22T15:00:36Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd410m:g4104m:g4104dm:g018161909:01816_1909-0025/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd410m:g4104m:g4104dm:g018161909:01816_1909-0025/info.json","type":"ImageService2","height":7652,"width":6452},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"-0.0,7652.0 -0.0,47.2 6452.0,0.0 6452.0,7640.1 -0.0,7652.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd410m:g4104m:g4104dm:g018161909:01816_1909-0025/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[2860.0,3780.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-87.6328447,40.1403552]}},{"type":"Feature","properties":{"resourceCoords":[660.0,3780.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-87.6341779,40.1403502]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd410m:g4104m:g4104dm:g018161909:01816_1909-0026__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Danville, Illinois | 1909 | sanborn01816_005 p26 [2]","metadata":[{"label":"streets","value":"3"},{"label":"intersections","value":"2"},{"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":"2026-09-22T15:00:36Z","modified":"2026-09-22T15:00:36Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd410m:g4104m:g4104dm:g018161909:01816_1909-0026__2/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd410m:g4104m:g4104dm:g018161909:01816_1909-0026/info.json","type":"ImageService2","height":7652,"width":6452},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"6452.0,-0.0 324.0,-0.0 279.2,2844.4 -0.0,2840.0 0.0,5641.2 1704.4,5628.8 1704.4,7652.0 6452.0,7652.0 6452.0,-0.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd410m:g4104m:g4104dm:g018161909:01816_1909-0026__2/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[5556.0,3452.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-87.6212529,40.1333472]}},{"type":"Feature","properties":{"resourceCoords":[5556.0,1244.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-87.6199377,40.1334022]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd410m:g4104m:g4104dm:g018161909:01816_1909-0027/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Danville, Illinois | 1909 | sanborn01816_005 p27","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"5"}],"created":"2026-09-22T15:00:36Z","modified":"2026-09-22T15:00:36Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd410m:g4104m:g4104dm:g018161909:01816_1909-0027/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd410m:g4104m:g4104dm:g018161909:01816_1909-0027/info.json","type":"ImageService2","height":7652,"width":6452},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"6452.0,-0.0 6452.0,7423.2 2306.9,7617.6 2192.8,3954.4 -0.0,4022.7 -0.0,0.0 6452.0,-0.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd410m:g4104m:g4104dm:g018161909:01816_1909-0027/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[3840.0,2956.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-87.6165255,40.1351206]}},{"type":"Feature","properties":{"resourceCoords":[248.0,984.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-87.6153436,40.1367973]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd410m:g4104m:g4104dm:g018161909:01816_1909-0028__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Danville, Illinois | 1909 | sanborn01816_005 p28 [2]","metadata":[{"label":"streets","value":"4"},{"label":"intersections","value":"2"},{"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":"2026-09-22T15:00:36Z","modified":"2026-09-22T15:00:36Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd410m:g4104m:g4104dm:g018161909:01816_1909-0028__2/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd410m:g4104m:g4104dm:g018161909:01816_1909-0028/info.json","type":"ImageService2","height":7652,"width":6452},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"5461.3,1023.8 5476.4,0.0 -0.0,-0.0 0.0,5819.2 4247.2,5863.6 4253.6,7652.0 6452.0,7652.0 6452.0,1039.6 5461.3,1023.8\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd410m:g4104m:g4104dm:g018161909:01816_1909-0028__2/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[2272.0,984.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-87.6198394,40.1389062]}},{"type":"Feature","properties":{"resourceCoords":[476.0,984.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-87.6209313,40.1388737]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd410m:g4104m:g4104dm:g018161909:01816_1909-0029__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Danville, Illinois | 1909 | sanborn01816_005 p29 [1]","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"3256.8"},{"label":"split_canvas_h","value":"7652.0"}],"created":"2026-09-22T15:00:36Z","modified":"2026-09-22T15:00:36Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd410m:g4104m:g4104dm:g018161909:01816_1909-0029__1/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd410m:g4104m:g4104dm:g018161909:01816_1909-0029/info.json","type":"ImageService2","height":7652,"width":6452},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"2167.1,-0.0 2150.8,612.4 345.6,538.7 367.5,-0.0 -0.0,0.0 -0.0,7652.0 2091.0,7652.0 2092.5,6665.8 3256.1,6648.6 3253.6,3080.8 3251.2,0.0 2167.1,-0.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd410m:g4104m:g4104dm:g018161909:01816_1909-0029__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":[-87.61325424082722,40.14001665006169]}},{"type":"Feature","properties":{"resourceCoords":[3256.8,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-87.61320577532938,40.13848471974406]}},{"type":"Feature","properties":{"resourceCoords":[3256.8,7652.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-87.6178821423758,40.13839703092361]}},{"type":"Feature","properties":{"resourceCoords":[0.0,7652.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-87.61793060787365,40.13992896124124]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd410m:g4104m:g4104dm:g018161909:01816_1909-0029__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Danville, Illinois | 1909 | sanborn01816_005 p29 [2]","metadata":[{"label":"streets","value":"2"},{"label":"intersections","value":"1"},{"label":"split_canvas_x","value":"3251.2"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"3200.8"},{"label":"split_canvas_h","value":"3080.8"}],"created":"2026-09-22T15:00:36Z","modified":"2026-09-22T15:00:36Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd410m:g4104m:g4104dm:g018161909:01816_1909-0029__2/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd410m:g4104m:g4104dm:g018161909:01816_1909-0029/info.json","type":"ImageService2","height":7652,"width":6452},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"6452.0,-0.0 3251.2,-0.0 3253.6,3080.8 6452.0,3061.6 6452.0,-0.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd410m:g4104m:g4104dm:g018161909:01816_1909-0029__2/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[3251.2,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-87.5995429654201,40.14077901287107]}},{"type":"Feature","properties":{"resourceCoords":[6452.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-87.59949892299791,40.13780517409733]}},{"type":"Feature","properties":{"resourceCoords":[6452.0,3080.8],"type":"corner"},"geometry":{"type":"Point","coordinates":[-87.60323967907942,40.13777281878154]}},{"type":"Feature","properties":{"resourceCoords":[3251.2,3080.8],"type":"corner"},"geometry":{"type":"Point","coordinates":[-87.60328372150161,40.14074665755528]}},{"type":"Feature","properties":{"resourceCoords":[4925.5,2276.6],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-87.6022842,40.1391995]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd410m:g4104m:g4104dm:g018161909:01816_1909-0029__3/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Danville, Illinois | 1909 | sanborn01816_005 p29 [3]","metadata":[{"label":"streets","value":"3"},{"label":"intersections","value":"2"},{"label":"split_canvas_x","value":"3253.6"},{"label":"split_canvas_y","value":"3061.6"},{"label":"split_canvas_w","value":"3198.4"},{"label":"split_canvas_h","value":"4590.4"}],"created":"2026-09-22T15:00:36Z","modified":"2026-09-22T15:00:36Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd410m:g4104m:g4104dm:g018161909:01816_1909-0029__3/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd410m:g4104m:g4104dm:g018161909:01816_1909-0029/info.json","type":"ImageService2","height":7652,"width":6452},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"6384.5,6944.2 6452.0,3061.6 3253.6,3080.8 3256.8,7652.0 5213.0,7652.0 5203.7,6992.0 6384.5,6944.2\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd410m:g4104m:g4104dm:g018161909:01816_1909-0029__3/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[5200.6,4561.1],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-87.6118428,40.1389814]}},{"type":"Feature","properties":{"resourceCoords":[5200.6,6480.4],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-87.6129317,40.138995]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd410m:g4104m:g4104dm:g018161909:01816_1909-0003/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Danville, Illinois | 1909 | sanborn01816_005 p3","metadata":[{"label":"streets","value":"4"},{"label":"intersections","value":"5"}],"created":"2026-09-22T15:00:36Z","modified":"2026-09-22T15:00:36Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd410m:g4104m:g4104dm:g018161909:01816_1909-0003/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd410m:g4104m:g4104dm:g018161909:01816_1909-0003/info.json","type":"ImageService2","height":7652,"width":6452},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"334.0,7652.0 493.5,320.3 6452.0,326.6 6452.0,7652.0 334.0,7652.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd410m:g4104m:g4104dm:g018161909:01816_1909-0003/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[5068.0,3844.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-87.6249019,40.1207746]}},{"type":"Feature","properties":{"resourceCoords":[5068.0,320.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-87.6227723,40.1207952]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd410m:g4104m:g4104dm:g018161909:01816_1909-0031/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Danville, Illinois | 1909 | sanborn01816_005 p31","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-22T15:00:36Z","modified":"2026-09-22T15:00:36Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd410m:g4104m:g4104dm:g018161909:01816_1909-0031/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd410m:g4104m:g4104dm:g018161909:01816_1909-0031/info.json","type":"ImageService2","height":7652,"width":6452},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"6452.0,-0.0 6452.0,7652.0 -0.0,7652.0 -0.0,0.0 6452.0,-0.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd410m:g4104m:g4104dm:g018161909:01816_1909-0031/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-87.5871493380584,40.13490468156961]}},{"type":"Feature","properties":{"resourceCoords":[6452.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-87.58715690636113,40.13181722903631]}},{"type":"Feature","properties":{"resourceCoords":[6452.0,7652.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-87.59191270365854,40.13182413996886]}},{"type":"Feature","properties":{"resourceCoords":[0.0,7652.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-87.5919051353558,40.134911592502164]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd410m:g4104m:g4104dm:g018161909:01816_1909-0033__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Danville, Illinois | 1909 | sanborn01816_005 p33 [1]","metadata":[{"label":"streets","value":"2"},{"label":"intersections","value":"1"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"2506.8"},{"label":"split_canvas_h","value":"3658.4"}],"created":"2026-09-22T15:00:36Z","modified":"2026-09-22T15:00:36Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd410m:g4104m:g4104dm:g018161909:01816_1909-0033__1/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd410m:g4104m:g4104dm:g018161909:01816_1909-0033/info.json","type":"ImageService2","height":7652,"width":6452},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"0.0,0.0 -0.0,3658.4 2506.0,3650.8 2506.4,2032.4 2506.8,0.0 0.0,0.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd410m:g4104m:g4104dm:g018161909:01816_1909-0033__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":[-87.64511821830764,40.146233575944805]}},{"type":"Feature","properties":{"resourceCoords":[2506.8,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-87.64359525983872,40.14625051002857]}},{"type":"Feature","properties":{"resourceCoords":[2506.8,3658.4],"type":"corner"},"geometry":{"type":"Point","coordinates":[-87.64356292289142,40.14455204014117]}},{"type":"Feature","properties":{"resourceCoords":[0.0,3658.4],"type":"corner"},"geometry":{"type":"Point","coordinates":[-87.64508588136034,40.144535106057404]}},{"type":"Feature","properties":{"resourceCoords":[247.9,1439.4],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-87.6449549,40.145567]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd410m:g4104m:g4104dm:g018161909:01816_1909-0033__10/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Danville, Illinois | 1909 | sanborn01816_005 p33 [10]","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"5407.2"},{"label":"split_canvas_w","value":"2022.0"},{"label":"split_canvas_h","value":"2244.8"}],"created":"2026-09-22T15:00:36Z","modified":"2026-09-22T15:00:36Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd410m:g4104m:g4104dm:g018161909:01816_1909-0033__10/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd410m:g4104m:g4104dm:g018161909:01816_1909-0033/info.json","type":"ImageService2","height":7652,"width":6452},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"2022.0,7652.0 2021.4,6054.9 896.8,6074.4 915.1,5410.8 0.0,5407.2 -0.0,7652.0 2022.0,7652.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd410m:g4104m:g4104dm:g018161909:01816_1909-0033__10/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,5407.2],"type":"corner"},"geometry":{"type":"Point","coordinates":[-87.5968770725196,40.12765584804745]}},{"type":"Feature","properties":{"resourceCoords":[2022.0,5407.2],"type":"corner"},"geometry":{"type":"Point","coordinates":[-87.59565662568885,40.12769320969929]}},{"type":"Feature","properties":{"resourceCoords":[2022.0,7652.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-87.5956026277496,40.126647388063965]}},{"type":"Feature","properties":{"resourceCoords":[0.0,7652.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-87.59682307458036,40.12661002641213]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd410m:g4104m:g4104dm:g018161909:01816_1909-0033__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Danville, Illinois | 1909 | sanborn01816_005 p33 [2]","metadata":[{"label":"streets","value":"3"},{"label":"intersections","value":"2"},{"label":"split_canvas_x","value":"2506.4"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"2570.4"},{"label":"split_canvas_h","value":"2052.4"}],"created":"2026-09-22T15:00:36Z","modified":"2026-09-22T15:00:36Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd410m:g4104m:g4104dm:g018161909:01816_1909-0033__2/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd410m:g4104m:g4104dm:g018161909:01816_1909-0033/info.json","type":"ImageService2","height":7652,"width":6452},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"4912.9,1720.3 5074.8,1720.9 5075.2,1327.2 5076.8,0.0 2506.8,0.0 2506.4,2032.4 4236.3,2045.9 4241.6,1722.7 4912.9,1720.3\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd410m:g4104m:g4104dm:g018161909:01816_1909-0033__2/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[4912.9,1720.3],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-87.6341838,40.1420857]}},{"type":"Feature","properties":{"resourceCoords":[2690.3,1720.3],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-87.6355254,40.1420637]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd410m:g4104m:g4104dm:g018161909:01816_1909-0033__6/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Danville, Illinois | 1909 | sanborn01816_005 p33 [6]","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"3650.8"},{"label":"split_canvas_w","value":"2506.0"},{"label":"split_canvas_h","value":"1766.4"}],"created":"2026-09-22T15:00:36Z","modified":"2026-09-22T15:00:36Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd410m:g4104m:g4104dm:g018161909:01816_1909-0033__6/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd410m:g4104m:g4104dm:g018161909:01816_1909-0033/info.json","type":"ImageService2","height":7652,"width":6452},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1505.5,5413.2 2021.2,5415.2 2505.6,5417.2 2506.0,4081.2 2506.0,3650.8 0.0,3658.4 0.0,4470.6 400.0,4475.3 373.5,5148.7 1508.8,5142.6 1505.5,5413.2\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd410m:g4104m:g4104dm:g018161909:01816_1909-0033__6/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,3650.8],"type":"corner"},"geometry":{"type":"Point","coordinates":[-87.59658941102839,40.12804349098225]}},{"type":"Feature","properties":{"resourceCoords":[2506.0,3650.8],"type":"corner"},"geometry":{"type":"Point","coordinates":[-87.59509104966445,40.12810317332159]}},{"type":"Feature","properties":{"resourceCoords":[2506.0,5417.2],"type":"corner"},"geometry":{"type":"Point","coordinates":[-87.59503632287723,40.12728854721729]}},{"type":"Feature","properties":{"resourceCoords":[0.0,5417.2],"type":"corner"},"geometry":{"type":"Point","coordinates":[-87.59653468424118,40.12722886487795]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd410m:g4104m:g4104dm:g018161909:01816_1909-0033__9/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Danville, Illinois | 1909 | sanborn01816_005 p33 [9]","metadata":[{"label":"streets","value":"2"},{"label":"intersections","value":"2"},{"label":"split_canvas_x","value":"4605.6"},{"label":"split_canvas_y","value":"4302.8"},{"label":"split_canvas_w","value":"1846.4"},{"label":"split_canvas_h","value":"3349.2"}],"created":"2026-09-22T15:00:36Z","modified":"2026-09-22T15:00:36Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd410m:g4104m:g4104dm:g018161909:01816_1909-0033__9/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd410m:g4104m:g4104dm:g018161909:01816_1909-0033/info.json","type":"ImageService2","height":7652,"width":6452},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"6452.0,7652.0 6452.0,4331.2 5539.6,4318.8 4629.6,4302.8 4616.4,6004.0 4605.6,7652.0 6452.0,7652.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd410m:g4104m:g4104dm:g018161909:01816_1909-0033__9/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[4605.6,4302.8],"type":"corner"},"geometry":{"type":"Point","coordinates":[-87.61218709080293,40.127823099654464]}},{"type":"Feature","properties":{"resourceCoords":[6452.0,4302.8],"type":"corner"},"geometry":{"type":"Point","coordinates":[-87.61106527293613,40.12779799606438]}},{"type":"Feature","properties":{"resourceCoords":[6452.0,7652.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-87.61112485583647,40.12624295939822]}},{"type":"Feature","properties":{"resourceCoords":[4605.6,7652.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-87.61224667370327,40.1262680629883]}},{"type":"Feature","properties":{"resourceCoords":[5440.9,7372.2],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-87.6117342,40.1263868]}},{"type":"Feature","properties":{"resourceCoords":[5440.9,7372.2],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-87.6117342,40.1263868]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd410m:g4104m:g4104dm:g018161909:01816_1909-0034__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Danville, Illinois | 1909 | sanborn01816_005 p34 [1]","metadata":[{"label":"streets","value":"2"},{"label":"intersections","value":"1"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"5052.8"},{"label":"split_canvas_h","value":"5832.4"}],"created":"2026-09-22T15:00:36Z","modified":"2026-09-22T15:00:36Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd410m:g4104m:g4104dm:g018161909:01816_1909-0034__1/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd410m:g4104m:g4104dm:g018161909:01816_1909-0034/info.json","type":"ImageService2","height":7652,"width":6452},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"-0.0,0.0 0.0,4953.2 2943.2,4955.6 2949.6,5807.6 4164.0,5822.0 5004.8,5832.4 5006.4,5226.0 5010.8,3663.2 5013.6,2584.8 5027.6,2584.8 5052.8,0.0 -0.0,0.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd410m:g4104m:g4104dm:g018161909:01816_1909-0034__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":[-87.64052706591701,40.11715313216687]}},{"type":"Feature","properties":{"resourceCoords":[5052.8,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-87.63829862220364,40.11554150723957]}},{"type":"Feature","properties":{"resourceCoords":[5052.8,5832.4],"type":"corner"},"geometry":{"type":"Point","coordinates":[-87.64073307810213,40.113575558994725]}},{"type":"Feature","properties":{"resourceCoords":[0.0,5832.4],"type":"corner"},"geometry":{"type":"Point","coordinates":[-87.64296152181551,40.115187183922025]}},{"type":"Feature","properties":{"resourceCoords":[4864.8,1288.1],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-87.6389192,40.1151673]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd410m:g4104m:g4104dm:g018161909:01816_1909-0034__3/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Danville, Illinois | 1909 | sanborn01816_005 p34 [3]","metadata":[{"label":"streets","value":"2"},{"label":"intersections","value":"1"},{"label":"split_canvas_x","value":"5010.8"},{"label":"split_canvas_y","value":"2584.8"},{"label":"split_canvas_w","value":"1441.2"},{"label":"split_canvas_h","value":"1078.4"}],"created":"2026-09-22T15:00:36Z","modified":"2026-09-22T15:00:36Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd410m:g4104m:g4104dm:g018161909:01816_1909-0034__3/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd410m:g4104m:g4104dm:g018161909:01816_1909-0034/info.json","type":"ImageService2","height":7652,"width":6452},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"5013.6,2584.8 5010.8,3663.2 5016.4,3663.2 6452.0,3661.2 6452.0,2602.8 5027.6,2584.8 5013.6,2584.8\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd410m:g4104m:g4104dm:g018161909:01816_1909-0034__3/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[5010.8,2584.8],"type":"corner"},"geometry":{"type":"Point","coordinates":[-87.61753855749511,40.13075289278625]}},{"type":"Feature","properties":{"resourceCoords":[6452.0,2584.8],"type":"corner"},"geometry":{"type":"Point","coordinates":[-87.61578521118082,40.130786428475396]}},{"type":"Feature","properties":{"resourceCoords":[6452.0,3663.2],"type":"corner"},"geometry":{"type":"Point","coordinates":[-87.61575239050197,40.1297842605359]}},{"type":"Feature","properties":{"resourceCoords":[5010.8,3663.2],"type":"corner"},"geometry":{"type":"Point","coordinates":[-87.61750573681626,40.12975072484675]}},{"type":"Feature","properties":{"resourceCoords":[5837.2,2728.6],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-87.6165288,40.1306385]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd410m:g4104m:g4104dm:g018161909:01816_1909-0034__4/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Danville, Illinois | 1909 | sanborn01816_005 p34 [4]","metadata":[{"label":"streets","value":"3"},{"label":"intersections","value":"2"},{"label":"split_canvas_x","value":"5006.4"},{"label":"split_canvas_y","value":"3661.2"},{"label":"split_canvas_w","value":"1445.6"},{"label":"split_canvas_h","value":"1587.6"}],"created":"2026-09-22T15:00:36Z","modified":"2026-09-22T15:00:36Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd410m:g4104m:g4104dm:g018161909:01816_1909-0034__4/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd410m:g4104m:g4104dm:g018161909:01816_1909-0034/info.json","type":"ImageService2","height":7652,"width":6452},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"6452.0,3661.2 5016.4,3663.2 5010.8,3663.2 5006.4,5226.0 6452.0,5248.8 6452.0,3661.2\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd410m:g4104m:g4104dm:g018161909:01816_1909-0034__4/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[5789.1,4784.9],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-87.6248545,40.1187788]}},{"type":"Feature","properties":{"resourceCoords":[5789.1,3809.2],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-87.6248819,40.1192463]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd410m:g4104m:g4104dm:g018161909:01816_1909-0004__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Danville, Illinois | 1909 | sanborn01816_005 p4 [1]","metadata":[{"label":"streets","value":"5"},{"label":"intersections","value":"6"},{"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":"2026-09-22T15:00:36Z","modified":"2026-09-22T15:00:36Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd410m:g4104m:g4104dm:g018161909:01816_1909-0004__1/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd410m:g4104m:g4104dm:g018161909:01816_1909-0004/info.json","type":"ImageService2","height":7652,"width":6452},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1233.8,-0.0 1233.4,4094.3 590.6,4090.6 586.5,7415.0 2224.3,7421.9 5044.0,7408.0 6115.8,7409.6 6452.0,7413.0 6452.0,-0.0 1233.8,-0.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd410m:g4104m:g4104dm:g018161909:01816_1909-0004__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1224.0,7408.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-87.6227987,40.1226065]}},{"type":"Feature","properties":{"resourceCoords":[5044.0,7408.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-87.6227723,40.1207952]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd410m:g4104m:g4104dm:g018161909:01816_1909-0005__3/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Danville, Illinois | 1909 | sanborn01816_005 p5 [3]","metadata":[{"label":"streets","value":"2"},{"label":"intersections","value":"1"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"3022.8"},{"label":"split_canvas_w","value":"1361.6"},{"label":"split_canvas_h","value":"1687.6"}],"created":"2026-09-22T15:00:36Z","modified":"2026-09-22T15:00:36Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd410m:g4104m:g4104dm:g018161909:01816_1909-0005__3/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd410m:g4104m:g4104dm:g018161909:01816_1909-0005/info.json","type":"ImageService2","height":7652,"width":6452},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"0.0,4704.0 1359.6,4710.4 1361.6,3027.6 0.0,3022.8 0.0,4704.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd410m:g4104m:g4104dm:g018161909:01816_1909-0005__3/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,3022.8],"type":"corner"},"geometry":{"type":"Point","coordinates":[-87.64640785814612,40.13839067493651]}},{"type":"Feature","properties":{"resourceCoords":[1361.6,3022.8],"type":"corner"},"geometry":{"type":"Point","coordinates":[-87.6447560222488,40.13839857152488]}},{"type":"Feature","properties":{"resourceCoords":[1361.6,4710.4],"type":"corner"},"geometry":{"type":"Point","coordinates":[-87.64474316687492,40.13682804748594]}},{"type":"Feature","properties":{"resourceCoords":[0.0,4710.4],"type":"corner"},"geometry":{"type":"Point","coordinates":[-87.64639500277224,40.13682015089757]}},{"type":"Feature","properties":{"resourceCoords":[1233.4,3218.3],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-87.64491,40.1382159]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd410m:g4104m:g4104dm:g018161909:01816_1909-0006__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Danville, Illinois | 1909 | sanborn01816_005 p6 [1]","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"11"},{"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":"2026-09-22T15:00:36Z","modified":"2026-09-22T15:00:36Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd410m:g4104m:g4104dm:g018161909:01816_1909-0006__1/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd410m:g4104m:g4104dm:g018161909:01816_1909-0006/info.json","type":"ImageService2","height":7652,"width":6452},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"804.0,7652.0 1948.0,7652.0 6452.0,7652.0 6452.0,4932.0 5558.4,4916.4 5561.6,3258.0 6452.0,3251.2 6452.0,304.7 4336.6,317.6 4335.8,259.3 246.5,342.7 250.0,7258.0 492.1,7260.1 487.5,7652.0 804.0,7652.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd410m:g4104m:g4104dm:g018161909:01816_1909-0006__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[248.0,2452.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-87.6326468,40.1263295]}},{"type":"Feature","properties":{"resourceCoords":[248.0,7256.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-87.6355644,40.1263084]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd410m:g4104m:g4104dm:g018161909:01816_1909-0007/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Danville, Illinois | 1909 | sanborn01816_005 p7","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"7"}],"created":"2026-09-22T15:00:36Z","modified":"2026-09-22T15:00:36Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd410m:g4104m:g4104dm:g018161909:01816_1909-0007/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd410m:g4104m:g4104dm:g018161909:01816_1909-0007/info.json","type":"ImageService2","height":7652,"width":6452},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"362.1,243.9 6452.0,322.0 6452.0,7652.0 -0.0,7652.0 -0.0,6450.9 361.4,6453.2 362.1,243.9\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd410m:g4104m:g4104dm:g018161909:01816_1909-0007/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[420.0,4336.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-87.6312922,40.1244426]}},{"type":"Feature","properties":{"resourceCoords":[2660.0,284.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-87.6299717,40.1263385]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd410m:g4104m:g4104dm:g018161909:01816_1909-0008__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Danville, Illinois | 1909 | sanborn01816_005 p8 [2]","metadata":[{"label":"streets","value":"7"},{"label":"intersections","value":"7"},{"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":"2026-09-22T15:00:36Z","modified":"2026-09-22T15:00:36Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd410m:g4104m:g4104dm:g018161909:01816_1909-0008__2/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd410m:g4104m:g4104dm:g018161909:01816_1909-0008/info.json","type":"ImageService2","height":7652,"width":6452},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"6106.0,4317.6 6452.0,4319.1 6452.0,245.2 1482.4,224.6 1488.0,1744.0 1488.4,1918.4 1497.2,4045.2 634.2,4048.0 675.5,7630.5 6156.7,7652.0 6106.0,4317.6\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd410m:g4104m:g4104dm:g018161909:01816_1909-0008__2/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1688.0,2248.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-87.6270064,40.1254213]}},{"type":"Feature","properties":{"resourceCoords":[5352.0,2248.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-87.6248077,40.1254283]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd410m:g4104m:g4104dm:g018161909:01816_1909-0009/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Danville, Illinois | 1909 | sanborn01816_005 p9","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-22T15:00:36Z","modified":"2026-09-22T15:00:36Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd410m:g4104m:g4104dm:g018161909:01816_1909-0009/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd410m:g4104m:g4104dm:g018161909:01816_1909-0009/info.json","type":"ImageService2","height":7652,"width":6452},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"439.6,4253.3 462.4,232.6 2889.6,220.8 2889.2,0.0 6452.0,0.0 6452.0,7652.0 128.4,7652.0 95.7,4249.9 439.6,4253.3\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd410m:g4104m:g4104dm:g018161909:01816_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":[-87.62443173804992,40.12645592185341]}},{"type":"Feature","properties":{"resourceCoords":[6452.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-87.6205345598016,40.12648552279018]}},{"type":"Feature","properties":{"resourceCoords":[6452.0,7652.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-87.62048897013806,40.122926337946225]}},{"type":"Feature","properties":{"resourceCoords":[0.0,7652.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-87.62438614838638,40.122896737009455]}}]}}]}