{"id":"https://data.mapsnap.org/runs/v1.3/iiif/loc/sanborn04758_004.keymap.iiif.json","type":"AnnotationPage","@context":["http://www.w3.org/ns/anno.jsonld"],"label":"Macon, Missouri | 1902 | key map | 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"}],"items":[{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd416m:g4164m:g4164mm:g4164mm_g047581902:04758_1902-0001__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Macon, Missouri | 1902 | sanborn04758_004 p1 [2]","metadata":[{"label":"streets","value":"27"},{"label":"intersections","value":"71"},{"label":"split_canvas_x","value":"2874.5"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"4003.9"},{"label":"split_canvas_h","value":"4693.8"}],"created":"2026-09-23T12:06:51Z","modified":"2026-09-23T12:06:51Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd416m:g4164m:g4164mm:g4164mm_g047581902:04758_1902-0001__2/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd416m:g4164m:g4164mm:g4164mm_g047581902:04758_1902-0001/info.json","type":"ImageService2","height":7652,"width":6452},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"6878.4,4693.8 6878.4,0.0 5145.5,0.0 4585.0,0.0 2874.5,0.0 2874.5,14.4 2877.4,4673.1 6873.2,4693.8 6878.4,4693.8\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd416m:g4164m:g4164mm:g4164mm_g047581902:04758_1902-0001__2/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[4486.4,966.2],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-92.471351,39.741289]}},{"type":"Feature","properties":{"resourceCoords":[4493.1,1706.3],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-92.4714878,39.7377885]}}]}}]}