{"id":"https://data.mapsnap.org/runs/v1.3/iiif/loc/sanborn09036_004.main.iiif.json","type":"AnnotationPage","@context":["http://www.w3.org/ns/anno.jsonld"],"label":"Leesburg, Virginia | 1903 | 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":"11"},{"label":"placed","value":"3"},{"label":"unplaced","value":"8"},{"label":"fit sources","value":"georef 3, georef-snap 1"},{"label":"key map","value":"none"},{"label":"split sheets","value":"3 sheet(s) cut into 10 panels"},{"label":"unplaced pages","value":"p1__1 (tier 1, 39.13212,-77.77349 +/-239m); p1__2 (tier 1, 39.12545,-77.77402 +/-137m); p1__3 (tier 1, 39.13303,-77.77131 +/-144m); p3__2 (tier 1, 39.11562,-77.57000 +/-100m); p3__3 (tier 2, 39.11491,-77.56412 +/-100m); p3__4 (tier 1, 39.11064,-77.56648 +/-100m); p4__1 (tier 4, 39.11843,-77.61821 +/-13897m)"},{"label":"withheld","value":"p4__3 (18.5 km from the catalogue location)"}],"items":[{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd388m:g3884m:g3884lm:g3884lm_g090361903:09036_1903-0002/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Leesburg, Virginia | 1903 | sanborn09036_004 p2","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T15:04:38Z","modified":"2026-09-21T15:04:38Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd388m:g3884m:g3884lm:g3884lm_g090361903:09036_1903-0002/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd388m:g3884m:g3884lm:g3884lm_g090361903:09036_1903-0002/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 6452.0,210.8 6032.7,200.3 6042.1,7156.8 2574.0,7195.5 2577.9,7652.0 -0.0,7652.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd388m:g3884m:g3884lm:g3884lm_g090361903:09036_1903-0002/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-77.56703915844143,39.11833356441335]}},{"type":"Feature","properties":{"resourceCoords":[6452.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-77.56342880503607,39.117319991283885]}},{"type":"Feature","properties":{"resourceCoords":[6452.0,7652.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-77.5649672920433,39.113974405450044]}},{"type":"Feature","properties":{"resourceCoords":[0.0,7652.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-77.56857764544867,39.11498797857951]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd388m:g3884m:g3884lm:g3884lm_g090361903:09036_1903-0003__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Leesburg, Virginia | 1903 | sanborn09036_004 p3 [1]","metadata":[{"label":"streets","value":"5"},{"label":"intersections","value":"12"},{"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":"2026-09-21T15:04:38Z","modified":"2026-09-21T15:04:38Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd388m:g3884m:g3884lm:g3884lm_g090361903:09036_1903-0003__1/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd388m:g3884m:g3884lm:g3884lm_g090361903:09036_1903-0003/info.json","type":"ImageService2","height":7652,"width":6452},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"6452.0,2928.4 4561.6,2936.4 4560.4,2165.6 4138.0,2165.6 4137.6,159.6 419.9,201.6 498.9,7161.0 3654.0,7122.7 3651.2,5811.2 6452.0,5800.4 6452.0,2928.4\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd388m:g3884m:g3884lm:g3884lm_g090361903:09036_1903-0003__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[3200.0,1676.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-77.5624494,39.1162103]}},{"type":"Feature","properties":{"resourceCoords":[488.0,4396.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-77.564532,39.115461]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd388m:g3884m:g3884lm:g3884lm_g090361903:09036_1903-0004__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Leesburg, Virginia | 1903 | sanborn09036_004 p4 [2]","metadata":[{"label":"streets","value":"5"},{"label":"intersections","value":"8"},{"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":"2026-09-21T15:04:38Z","modified":"2026-09-21T15:04:38Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd388m:g3884m:g3884lm:g3884lm_g090361903:09036_1903-0004__2/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd388m:g3884m:g3884lm:g3884lm_g090361903:09036_1903-0004/info.json","type":"ImageService2","height":7652,"width":6452},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"3016.0,7652.0 3732.0,7652.0 4281.2,7652.0 4298.0,6534.0 5040.4,5826.8 5940.0,5835.0 5963.6,0.0 2552.8,0.0 2546.8,1550.0 0.0,1544.0 0.0,7652.0 3016.0,7652.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd388m:g3884m:g3884lm:g3884lm_g090361903:09036_1903-0004__2/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[4420.0,3496.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-77.5653989,39.1135914]}},{"type":"Feature","properties":{"resourceCoords":[4420.0,732.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-77.5669367,39.1140064]}}]}}]}