Perspective painting of a whole hull model by Joseph Marshall, commisioned by King George III. In 1773, George III directed that plans for one of each clas of His Majesty's ships should be prepared for him. A series of perspective paintings of unrigged hull models was produced by Marshall between 1773 and 1775. 'Portland' was a Fourth Rate 50-gun ship designed by Sir John Williams, surveyor of the Navy, built at Sheernes Dockyard in Kent. Launched in 1770, she met HMS 'Endeavour' at St Helena in 1771, bringing Captain James Cook's (1728-1779) journals of his Pacific expedition back to Britain. HMS Portland became a storeship in 1800, a prison hulk in 1802 and was sold in 1817.
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