1 Peseta Cap de Saso

Cap de Saso is a small agricultural area in the Monegros region of Aragon, and this note was issued by a local workers' cooperative — almost certainly during the Spanish Civil War period (1936–1939), when the breakdown of the official monetary supply forced hundreds of municipalities, unions, and cooperatives across the Republican zone to print their own emergency scrip. These pieces circulated purely within the immediate community; they had no validity beyond the cooperative's own transactions.

The rubber stamp authentication is characteristic of the most improvised end of Spanish Civil War local issues — a deliberate security measure when proper printing infrastructure simply wasn't available.