Ambulatory; Westminster Abbey; Frederick Nash; 1782-1856; British; undated; Watercolor and graphite with pen and brown ink on medium; slightly textured; cream wove paper mounted on moderately thick; slightly textured; cream wove paper; Sheet: 9 1/8 x 12 5/8 inches (23.2 x 32.1 cm); abbey; ambulatory; arches; architectural subject; blind arches; chapel; church; Gothic architectural decoration; Gothic churches; Gothic interior decoration; interior (space); mullions; niches; people; pillars; rib vaults; rose windows; tombs; vaulted ceilings; City of Westminster; England; Europe; Greater London; London; United Kingdom; Westminster; Westminster Abbey