{"id":"https://data.mapsnap.org/runs/v1.3/iiif/loc/sanborn01731_002.main.iiif.json","type":"AnnotationPage","@context":["http://www.w3.org/ns/anno.jsonld"],"label":"Bensenville, Illinois | 1933 | mapsnap generated fit (2026-09-21)","creator":{"type":"Software","name":"mapsnap","homepage":"https://mapsnap.org"},"rights":"https://opendatacommons.org/licenses/odbl/1-0/","metadata":[{"label":"generated","value":"2026-09-21"},{"label":"run","value":"corpus-v1"},{"label":"pages","value":"7"},{"label":"placed","value":"3"},{"label":"unplaced","value":"4"},{"label":"fit sources","value":"georef 3, georef-snap 1"},{"label":"key map","value":"none"},{"label":"split sheets","value":"2 sheet(s) cut into 5 panels"},{"label":"unplaced pages","value":"p1__1 (tier 2, 41.95422,-87.94098 +/-204m); p1__2 (tier 2, 41.95422,-87.94098 +/-204m); p3__2 (tier 1, 41.95862,-87.93877 +/-100m)"},{"label":"withheld","value":"p3__3 (6.1 km from the catalogue location)"}],"items":[{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd410m:g4104m:g4104bm:g017311933:01731_1933-0002/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Bensenville, Illinois | 1933 | sanborn01731_002 p2","metadata":[{"label":"streets","value":"9"},{"label":"intersections","value":"15"}],"created":"2026-09-21T19:02:36Z","modified":"2026-09-21T19:02:36Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd410m:g4104m:g4104bm:g017311933:01731_1933-0002/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd410m:g4104m:g4104bm:g017311933:01731_1933-0002/info.json","type":"ImageService2","height":7652,"width":6452},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"400.9,5772.5 379.5,60.8 6452.0,0.0 6452.0,4669.6 5180.3,4491.1 5175.1,7529.4 400.9,5772.5\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd410m:g4104m:g4104bm:g017311933:01731_1933-0002/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[2780.0,4108.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-87.941092,41.9566367]}},{"type":"Feature","properties":{"resourceCoords":[2780.0,3072.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-87.9410936,41.9571125]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd410m:g4104m:g4104bm:g017311933:01731_1933-0003__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Bensenville, Illinois | 1933 | sanborn01731_002 p3 [1]","metadata":[{"label":"streets","value":"10"},{"label":"intersections","value":"23"},{"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":"2026-09-21T19:02:36Z","modified":"2026-09-21T19:02:36Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd410m:g4104m:g4104bm:g017311933:01731_1933-0003__1/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd410m:g4104m:g4104bm:g017311933:01731_1933-0003/info.json","type":"ImageService2","height":7652,"width":6452},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"0.0,4451.6 2603.6,4456.0 2601.2,4870.0 3444.8,4883.6 3416.8,7652.0 4951.0,7652.0 4958.2,7058.8 5876.4,7053.8 5957.3,1228.5 6452.0,1231.4 6452.0,0.0 2684.0,0.0 2687.2,1538.0 1031.2,1536.0 1034.8,0.0 -0.0,-0.0 0.0,4451.6\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd410m:g4104m:g4104bm:g017311933:01731_1933-0003__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[4764.0,5884.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-87.94394,41.9542]}},{"type":"Feature","properties":{"resourceCoords":[580.0,1264.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-87.9491959,41.9583679]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd410m:g4104m:g4104bm:g017311933:01731_1933-0004/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Bensenville, Illinois | 1933 | sanborn01731_002 p4","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T19:02:36Z","modified":"2026-09-21T19:02:36Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd410m:g4104m:g4104bm:g017311933:01731_1933-0004/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd410m:g4104m:g4104bm:g017311933:01731_1933-0004/info.json","type":"ImageService2","height":7652,"width":6452},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"-0.0,3813.9 922.1,3797.9 932.8,829.9 3326.6,1716.7 3335.1,199.1 3973.3,290.7 3974.4,0.0 6452.0,0.0 6452.0,7652.0 -0.0,7652.0 -0.0,3813.9\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd410m:g4104m:g4104bm:g017311933:01731_1933-0004/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-87.94370411711296,41.95662752475159]}},{"type":"Feature","properties":{"resourceCoords":[6452.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-87.93579401962019,41.95666520013508]}},{"type":"Feature","properties":{"resourceCoords":[6452.0,7652.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-87.93573435848424,41.9496391829939]}},{"type":"Feature","properties":{"resourceCoords":[0.0,7652.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-87.94364445597701,41.94960150761041]}}]}}]}