Vales
The name given to the card- board money issued by the Rebels in Mex- ico in 1914-1915. The words VALE 5 CENTA- VOS, VALE 10 CENTAVOS, etc., printed promi- nently on the face of these tickets, prob- ably gave rise to the nickname.
Source: Frey's Dictionary (American Journal of Numismatics, Vol. 50, 1916)