This slight sketch is a prospect of Colchester in Essex. The view is continued on the folio opposite (Tate D18166; Turner Bequest CCIX 4a). For other drawings of Colchester see Tate D18164–D18169, D18171, D18186, D18275–D18276, D18286, D18296–D18297; Turner Bequest CCIX 3a–6a, 7a, 16, 61–62, 71, 80a–81 and the watercolour housed in the Courtauld Institute Gallery, London (see Tate impressions T04511–T04512).1
Andrew Wilton, J.M.W. Turner: His Life and Work, Fribourg 1979, p.392 no.789.