Vintem
The name given originally to a silver coin of Portugal, which was issued in the reign of Manuel (1495-1521), and corresponded to the Real.
In the eighteenth century the Vintem was struck in copper, of a value of twenty Reis, for the Portuguese colonies. Of this type there are multiples to twelve Vintems. See Xeraphin.
Source: Frey's Dictionary (American Journal of Numismatics, Vol. 50, 1916)