{"id":"https://data.mapsnap.org/runs/v1.3/iiif/loc/sanborn01770_001.main.iiif.json","type":"AnnotationPage","@context":["http://www.w3.org/ns/anno.jsonld"],"label":"Carrollton, Illinois | 1885 | mapsnap generated fit (2026-09-20)","creator":{"type":"Software","name":"mapsnap","homepage":"https://mapsnap.org"},"rights":"https://opendatacommons.org/licenses/odbl/1-0/","metadata":[{"label":"generated","value":"2026-09-20"},{"label":"run","value":"corpus-v1"},{"label":"pages","value":"8"},{"label":"placed","value":"2"},{"label":"unplaced","value":"6"},{"label":"fit sources","value":"georef 2"},{"label":"key map","value":"none"},{"label":"split sheets","value":"1 sheet(s) cut into 7 panels"},{"label":"unplaced pages","value":"p2__2 (tier 4, 39.30116,-90.40806 +/-114m); p2__3 (tier 4, 39.30116,-90.40806 +/-114m); p2__4 (tier 4, 39.30116,-90.40806 +/-114m); p2__5 (tier 4, 39.30116,-90.40806 +/-114m); p2__6 (tier 4, 39.30116,-90.40806 +/-114m); p2__7 (tier 4, 39.30116,-90.40806 +/-114m)"}],"items":[{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd410m:g4104m:g4104cm:g017701885:01770_1885-0001/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Carrollton, Illinois | 1885 | sanborn01770_001 p1","metadata":[{"label":"streets","value":"4"},{"label":"intersections","value":"4"}],"created":"2026-09-20T23:12:49Z","modified":"2026-09-20T23:12:49Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd410m:g4104m:g4104cm:g017701885:01770_1885-0001/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd410m:g4104m:g4104cm:g017701885:01770_1885-0001/info.json","type":"ImageService2","height":7652,"width":6452},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"-0.0,7652.0 -0.0,-0.0 6147.0,0.0 6134.0,7652.0 -0.0,7652.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd410m:g4104m:g4104cm:g017701885:01770_1885-0001/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[3576.0,1592.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-90.4091673,39.3021974]}},{"type":"Feature","properties":{"resourceCoords":[3576.0,6796.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-90.409183,39.299783]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd410m:g4104m:g4104cm:g017701885:01770_1885-0002__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Carrollton, Illinois | 1885 | sanborn01770_001 p2 [1]","metadata":[{"label":"streets","value":"3"},{"label":"intersections","value":"4"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"3121.6"},{"label":"split_canvas_h","value":"7652.0"}],"created":"2026-09-20T23:12:49Z","modified":"2026-09-20T23:12:49Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd410m:g4104m:g4104cm:g017701885:01770_1885-0002__1/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd410m:g4104m:g4104cm:g017701885:01770_1885-0002/info.json","type":"ImageService2","height":7652,"width":6452},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"17.7,0.0 103.2,7652.0 3092.8,7652.0 3100.8,5445.2 3101.6,5194.0 3106.8,3919.2 3114.8,1925.2 3121.6,0.0 17.7,0.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd410m:g4104m:g4104cm:g017701885:01770_1885-0002__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[2681.4,4244.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-90.4060719,39.3009558]}},{"type":"Feature","properties":{"resourceCoords":[2681.4,1628.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-90.406044,39.302166]}}]}}]}