View this artwork by appointment, at Tate Britain's Prints and Drawings Rooms
Made with the page turned horizontally, this is a slight sketch in which the identity of the castle becomes, as in some other adjacent studies, difficult to determine precisely; compare the contemporary Studies for Pictures sketchbook (Tate D04102; Turner Bequest LXIX 88). However, the present drawing relates closely to the others in this group executed in blue wash, on the versos of folios 42, 43, 44 and 45 (D01860, D01862, D01864, D01866; Turner Bequest XLIII 41a, 42a, 43a, 44a) and so is almost certainly an idea for the large watercolour exhibited in 1799, Caernarvon Castle (private collection).1
Andrew Wilton, J.M.W. Turner: His Life and Work, Fribourg 1979, p.328 no.254, pl.47 (colour).