1000 Réis

Brazil's shift to aluminium bronze for the 1000 réis in 1924 was a direct response to chronic metal shortages and the economic instability that followed the First World War, when silver coinage had become too expensive to sustain at face value. The Casa da Moeda had been struggling with composition changes across multiple denominations throughout the early 1920s.

This series ran into the Revolution of 1930, which ousted President Washington Luís and brought Getúlio Vargas to power — effectively ending the Old Republic whose monetary framework these coins inhabited. Issues from the final year, 1931, were struck under a transitional government already planning currency reform.