25 Céntimos Puertollano

Puertollano, a coal-mining town in Ciudad Real province, was a significant industrial center for the Republican zone during the Spanish Civil War. Like hundreds of Spanish municipalities in 1936–37, it issued its own emergency fractional currency after metallic coins vanished from circulation almost entirely — hoarded, melted, or simply gone. These local municipal notes, known collectively as billetes locales or moneda local de necesidad, were authorized under increasingly chaotic conditions and rarely circulated beyond their issuing town's markets.

Survival rates vary sharply by municipality. Puertollano's issues are not among the rarest of the Civil War locales, but the industrial population that used them daily rarely had reason to preserve them carefully.