50 Céntimos Piera

One of hundreds of municipal emergency notes issued across Republican-held Catalonia during the Civil War, when the collapse of small-denomination coinage left local governments scrambling to keep daily commerce functioning. Piera, a small town in the Anoia comarca, issued its own series through the ajuntament rather than waiting for a centralized solution that never reliably came.

Turró catalogues these Catalan municipal issues exhaustively — his reference remains the definitive source for a series most mainstream catalogues ignore entirely.