Struck during the reign of George II, this silver halfcrown has an unusual inscription (LIMA) beneath the king's portrait. Rather than identifying the mint, the inscription refers to the Peruvian origin of Spanish colonial silver captured by the British during the War of Jenkins' Ear (1739–1748), a conflict fought over maritime trade and power.

In September 1740, Commodore George Anson departed England commanding six warships, accompanied by two supply vessels, with orders to attack Spanish shipping routes in the Pacific. The expedition encountered extraordinary difficulties, particularly during its passage around Cape Horn, where violent storms devastated the crews. Of the vessels that departed England, only Anson's flagship, HMS Centurion, completed the journey.

On June 20, 1743, Anson intercepted the Spanish treasure galleon Nuestra Señora de Covadonga near the Philippines. The vessel was carrying a substantial cargo of silver from the Spanish colonies. Following a brief battle, the galleon surrendered, providing Anson with one of the richest naval victories of the eighteenth century.

After returning to England in June 1744, the silver associated with his expedition was delivered to the Royal Mint in London and used to produce coins bearing the LIMA inscription. These issues included crowns, halfcrowns, shillings, and sixpences. Although it's impossible to know the exact source of the silver used in this particular halfcrown, the LIMA inscription identifies it with one of Britain's most celebrated naval expeditions.