Model, scale 1:48, of the stern of a three-decker vessel fitted with a retractable auxilliary screw propeller, patented by H. Wimshurst between 1840 and 1859, stern decorated to resemble the S.S. 'Novelty', unsigned, England, 1840-1902 Model of three decker's stern, with a retractable auxilliary screw propeller 1840-1902