{"id":"https://data.mapsnap.org/runs/v1.3/iiif/loc/sanborn01831_003.main.iiif.json","type":"AnnotationPage","@context":["http://www.w3.org/ns/anno.jsonld"],"label":"Dundee, Illinois | 1905 | mapsnap generated fit (2026-09-23)","creator":{"type":"Software","name":"mapsnap","homepage":"https://mapsnap.org"},"rights":"https://opendatacommons.org/licenses/odbl/1-0/","metadata":[{"label":"generated","value":"2026-09-23"},{"label":"run","value":"corpus-v1"},{"label":"pages","value":"10"},{"label":"placed","value":"6"},{"label":"unplaced","value":"4"},{"label":"fit sources","value":"georef 3, georef-snap 3"},{"label":"key map","value":"georeferenced"},{"label":"split sheets","value":"2 sheet(s) cut into 5 panels"},{"label":"unplaced pages","value":"p1__1 (tier 1, 42.10531,-88.28205 +/-215m); p1__2 (tier 1, 42.10428,-88.28365 +/-100m); p2 (tier 3, 42.10841,-88.28912 +/-705m); p6__2 (tier 1, 42.09888,-88.27704 +/-100m)"}],"items":[{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd410m:g4104m:g4104dm:g018311905:01831_1905-0001__3/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Dundee, Illinois | 1905 | sanborn01831_003 p1 [3]","metadata":[{"label":"streets","value":"3"},{"label":"intersections","value":"2"},{"label":"split_canvas_x","value":"3240.4"},{"label":"split_canvas_y","value":"4452.4"},{"label":"split_canvas_w","value":"3211.6"},{"label":"split_canvas_h","value":"3199.6"}],"created":"2026-09-23T05:50:41Z","modified":"2026-09-23T05:50:41Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd410m:g4104m:g4104dm:g018311905:01831_1905-0001__3/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd410m:g4104m:g4104dm:g018311905:01831_1905-0001/info.json","type":"ImageService2","height":7652,"width":6452},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"6452.0,7652.0 6452.0,4452.4 3240.4,4468.0 3249.2,7652.0 6452.0,7652.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd410m:g4104m:g4104dm:g018311905:01831_1905-0001__3/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[5720.1,4612.4],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-88.2725051,42.0966761]}},{"type":"Feature","properties":{"resourceCoords":[3412.4,4612.4],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-88.2739503,42.0964703]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd410m:g4104m:g4104dm:g018311905:01831_1905-0003/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Dundee, Illinois | 1905 | sanborn01831_003 p3","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-23T05:50:41Z","modified":"2026-09-23T05:50:41Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd410m:g4104m:g4104dm:g018311905:01831_1905-0003/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd410m:g4104m:g4104dm:g018311905:01831_1905-0003/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:g018311905:01831_1905-0003/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-88.28905142992123,42.11179763572959]}},{"type":"Feature","properties":{"resourceCoords":[6452.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-88.28506340649135,42.11219469642195]}},{"type":"Feature","properties":{"resourceCoords":[6452.0,7652.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-88.28443308211784,42.10866114267806]}},{"type":"Feature","properties":{"resourceCoords":[0.0,7652.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-88.28842110554773,42.108264081985695]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd410m:g4104m:g4104dm:g018311905:01831_1905-0004/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Dundee, Illinois | 1905 | sanborn01831_003 p4","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-23T05:50:41Z","modified":"2026-09-23T05:50:41Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd410m:g4104m:g4104dm:g018311905:01831_1905-0004/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd410m:g4104m:g4104dm:g018311905:01831_1905-0004/info.json","type":"ImageService2","height":7652,"width":6452},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"6062.1,7652.0 -0.0,7652.0 -0.0,0.0 6452.0,-0.0 6423.8,5888.8 6396.7,5910.1 6062.1,7652.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd410m:g4104m:g4104dm:g018311905:01831_1905-0004/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-88.27376660285316,42.10323943656162]}},{"type":"Feature","properties":{"resourceCoords":[6452.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-88.27304952900302,42.10023828582848]}},{"type":"Feature","properties":{"resourceCoords":[6452.0,7652.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-88.27781312067968,42.099602840236834]}},{"type":"Feature","properties":{"resourceCoords":[0.0,7652.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-88.27853019452982,42.102603990969975]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd410m:g4104m:g4104dm:g018311905:01831_1905-0005/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Dundee, Illinois | 1905 | sanborn01831_003 p5","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"8"}],"created":"2026-09-23T05:50:41Z","modified":"2026-09-23T05:50:41Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd410m:g4104m:g4104dm:g018311905:01831_1905-0005/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd410m:g4104m:g4104dm:g018311905:01831_1905-0005/info.json","type":"ImageService2","height":7652,"width":6452},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"4812.0,7652.0 3626.1,7399.5 3731.1,6208.6 1087.1,5646.5 475.5,5953.9 545.8,910.1 594.9,909.9 609.4,293.7 -0.0,281.2 -0.0,0.0 6452.0,-0.0 6452.0,7652.0 4812.0,7652.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd410m:g4104m:g4104dm:g018311905:01831_1905-0005/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[2184.0,884.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-88.2732284,42.0994263]}},{"type":"Feature","properties":{"resourceCoords":[6276.0,884.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-88.2727034,42.0974625]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd410m:g4104m:g4104dm:g018311905:01831_1905-0006__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Dundee, Illinois | 1905 | sanborn01831_003 p6 [1]","metadata":[{"label":"streets","value":"7"},{"label":"intersections","value":"16"},{"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":"2026-09-23T05:50:41Z","modified":"2026-09-23T05:50:41Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd410m:g4104m:g4104dm:g018311905:01831_1905-0006__1/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd410m:g4104m:g4104dm:g018311905:01831_1905-0006/info.json","type":"ImageService2","height":7652,"width":6452},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"6452.0,-0.0 6217.4,-0.0 6402.5,870.8 4751.6,1221.7 3723.1,1222.8 3503.7,1221.4 3423.7,-0.0 2846.0,0.0 1594.8,1804.4 0.0,1804.4 -0.0,7552.7 3580.5,7486.7 6452.0,7441.7 6452.0,-0.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd410m:g4104m:g4104dm:g018311905:01831_1905-0006__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1424.0,5448.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-88.2799308,42.0991275]}},{"type":"Feature","properties":{"resourceCoords":[5632.0,1216.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-88.2772616,42.0971006]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd410m:g4104m:g4104dm:g018311905:01831_1905-0007/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Dundee, Illinois | 1905 | sanborn01831_003 p7","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-23T05:50:41Z","modified":"2026-09-23T05:50:41Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd410m:g4104m:g4104dm:g018311905:01831_1905-0007/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd410m:g4104m:g4104dm:g018311905:01831_1905-0007/info.json","type":"ImageService2","height":7652,"width":6452},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"-0.0,7652.0 -0.0,-0.0 6364.8,0.0 6452.0,7652.0 -0.0,7652.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd410m:g4104m:g4104dm:g018311905:01831_1905-0007/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-88.2853412069157,42.09965585062859]}},{"type":"Feature","properties":{"resourceCoords":[6452.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-88.28120713072072,42.09966639634935]}},{"type":"Feature","properties":{"resourceCoords":[6452.0,7652.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-88.2811903929116,42.096002717993]}},{"type":"Feature","properties":{"resourceCoords":[0.0,7652.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-88.28532446910658,42.09599217227224]}}]}}]}