{"id":"https://data.mapsnap.org/runs/v1.3/iiif/loc/sanborn04440_004.main.iiif.json","type":"AnnotationPage","@context":["http://www.w3.org/ns/anno.jsonld"],"label":"Centreville, Mississippi | 1904 | 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":"3"},{"label":"placed","value":"2"},{"label":"unplaced","value":"1"},{"label":"fit sources","value":"georef 1, georef-snap 1"},{"label":"key map","value":"none"},{"label":"split sheets","value":"1 sheet(s) cut into 2 panels"},{"label":"unplaced pages","value":"p1__2 (tier 4, 31.08920,-91.06730 +/-100m)"}],"items":[{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd398m:g3984m:g3984cm:g3984cm_g044401904:04440_1904-0001__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Centreville, Mississippi | 1904 | sanborn04440_004 p1 [1]","metadata":[{"label":"streets","value":"4"},{"label":"intersections","value":"4"},{"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":"2026-09-22T05:18:29Z","modified":"2026-09-22T05:18:29Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd398m:g3984m:g3984cm:g3984cm_g044401904:04440_1904-0001__1/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd398m:g3984m:g3984cm:g3984cm_g044401904:04440_1904-0001/info.json","type":"ImageService2","height":7652,"width":6452},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"-0.0,7652.0 6452.0,7652.0 6452.0,0.0 6286.1,0.0 3233.0,1225.8 -0.0,3282.0 -0.0,7652.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd398m:g3984m:g3984cm:g3984cm_g044401904:04440_1904-0001__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[5356.0,6408.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-91.064601,31.0889559]}},{"type":"Feature","properties":{"resourceCoords":[1172.0,6408.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-91.0660707,31.0873256]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd398m:g3984m:g3984cm:g3984cm_g044401904:04440_1904-0002/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Centreville, Mississippi | 1904 | sanborn04440_004 p2","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-22T05:18:29Z","modified":"2026-09-22T05:18:29Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd398m:g3984m:g3984cm:g3984cm_g044401904:04440_1904-0002/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd398m:g3984m:g3984cm:g3984cm_g044401904:04440_1904-0002/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 6452.0,3051.6 5540.5,3066.6 5588.4,6380.0 6452.0,6377.0 6452.0,7652.0 -0.0,7652.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd398m:g3984m:g3984cm:g3984cm_g044401904:04440_1904-0002/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-91.06820372965572,31.091917552604762]}},{"type":"Feature","properties":{"resourceCoords":[6452.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-91.06532794011417,31.090005104292402]}},{"type":"Feature","properties":{"resourceCoords":[6452.0,7652.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-91.06795796155694,31.087063740634125]}},{"type":"Feature","properties":{"resourceCoords":[0.0,7652.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-91.07083375109849,31.088976188946486]}}]}}]}