Here Turner renders the silhouetted profile of a fortification on a headland and coast beyond with a remarkable economy of means. This is an instantaneous and fluid recording of form, a pictorial jotting. Similar handling can be found in Turner’s Skies sketchbook of about 1816–8 (Tate D12450–D12526; Turner Bequest CLVIII 2–69.
According to the Turner scholar Eric Shanes, this drawing formed the basis of a loose watercolour study of Walmer Castle, near Deal, Kent, of about 1825 (Tate D25477; Turner Bequest CCLXIII 354).1 Turner took pencil sketches of what is believed to be either Walmer in the Holland sketchbook of 1825 (Tate D19392–D19396; Turner Bequest CCXIV 278a–280a).
Shanes 1997, p.61, no.43.