A gold coin of Portugal is- sued in the reign of Joseph (1750-1777). It succeeded the Moidore (retired in the previous reign), and obtains its name on account of it being one fourth in value of the latter coin, i.e., one thousand Reis. Quartinhos of twelve hundred Reis were, however, occasionally issued. It was abol- ished about 1792. See Cuartino.
Source: Frey's Dictionary (American Journal of Numismatics, Vol. 50, 1916)