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Here, Turner is looking towards Rye from the Royal Military Road (built 1804–9) from Winchelsea. He combined this view with another on folio 62 of the sketchbook (D10516; Turner Bequest CXL 55), looking towards Camber Castle, to make up the composition of his watercolour (National Museum of Wales, Cardiff)1 engraved by Edward Goodall in 1824 for Picturesque Views on the Southern Coast of England. The watercolour brings the castle closer to Rye and makes the town higher than it is in reality, and invents building work to link an extension of the canal to the River Brede. The most direct source for the watercolour is in the Hastings sketchbook (Tate D10369–D10370; Turner Bequest CXXXIX 21a–22), perhaps developed from the sketches here.
Andrew Wilton, The Life and Work of J.M.W. Turner, Fribourg 1979, pp.353–4 no.471.