Published by Annesley and Sowerby, London, and sent to Messrs. Jackson & Maude, the advertisement bears text describing the new system of building ships, boats and barges and sixteen engraved illustrations (by J. Turnbull after W. Annesley). The particular ship described was built at the King's Dock-yard, Deptford; others being builtmay be seen at the Patent Ship-Building Yard, Upper Watergate, Deptford. [See patent 4240 of April 1818.].