An old Portuguese gold coin bearing a figure of John V of Portugal, in circulation 1722–1835.
1803, John Browne Cutting, “A Succinct History of Jamaica” in Robert Charles Dallas, The History of the Maroons, London: Longman and Rees, Volume 1, p. lxviii,
The current coins of Jamaica are Portugal pieces of gold, called the half johannes, valued at about 55s. currency each […]