Cf. Surgeon Captain P. D. Gordon Pugh, Naval Ceramics (1971), pl. 16C; see also Bernard Rackham, Victoria and Albert Museum Department of Ceramics, Catalougue of English Porcelain Earthenware Enamels and Glass collected by Charles Schreiber Esq. M.P. and The Lady Charlotte Elizabeth Schreiber and presented to the Museum in 1884, Volume II (1930) p. 21, pl. 71. for similar examples.
Edward Vernon (1684-1757) entered the navy in 1700, became a captain five years later, and in 1708 was promoted rear-admiral. His first sitting in parliament was in 1722 as the member for Penryn, and then between 1727 and 1741 as member for Portsmouth. In the 1730s the sentiment towards Spain was bad, particularly because the Spaniards constantly searched the British ships trading in the West Indies. When the Government failed to do anything about this, Edward Vernon, sitting on the opposition, strongly advocated war with Spain. In 1739, he set off on the 'Burford' to capture Portabello, along with five other ships, arriving on 20th November, 1739. Portabello was the base of the Spanish coastguard fleet, and the country's major emporium for trade in the West Indies. The following day, he had successfully captured the Iron Castle, and a day later the other forts and the town had surrended. His capture of Portabello made him a national hero.
His capture of the fort of San Lorenzo on 24th March, 1740, was equally successful, but he was less successful against Cartagena in Colombia and then at Satiago in Cuba.
In 1740, he ordered the dilution of navy rum with water, a mixture officially referred to as 'Grog'.