Scale: 1:12 and half-size. Plan showing the elevation, sections and plan of the seaman's bench (stool) illustrating the method of fixing it in the raised position for firing the guns on Blenheim (1813), a 74-gun Third Rate, two-decker. The plan also includes explanation key.

Signed by William Blessley [Foreman of Shipwrights, Chatham Dockyard]