Shipping in a Choppy Sea; Follower of William Owen; 1769-1825; British; Previously Samuel Owen; 1768-1857; British; undated; Watercolor and graphite with scratching out on medium; slightly textured; cream laid paper; Sheet: 7 1/2 x 10 1/2in. (19.1 x 26.7cm) and Sheet: 7 1/2 x 10 1/2 inches (19.1 x 26.7 cm); marine art; mast; sails; sea; shipping; ships; waves (natural events)