10 Centimos Masó; Sindicat Agrícol

During the Spanish Civil War, the collapse of small-denomination coinage across the Republican zone forced thousands of municipalities, cooperatives, and agricultural syndicates to print their own emergency paper. The Sindicat Agrícol de Masó — a small farming collective in the Baix Gaià comarca of Tarragona — was one of hundreds of such bodies that stepped in to keep local commerce moving when fractional currency simply vanished from circulation.

These hyper-local emissions are catalogued under the broader "Guerra Civil" vales system, but each is effectively unique to its issuing body. Survival rates vary wildly; notes from smaller rural syndicats were used hard and rarely preserved.