50 Réis Casa da Moeda

Portugal's 1891 financial crisis — triggered by a balance-of-payments collapse and the suspension of gold convertibility in May of that year — forced the government into emergency small-denomination paper. Coin shortages had left daily transactions nearly impossible, and the Casa da Moeda produced these fractional notes in-house as a stopgap. Printing and issuing authority were the same institution, which was unusual even by the standards of the day.

The 50 Réis was among the lowest denominations issued under these emergency conditions. Notes of this type circulated hard and survived poorly — the thin paper and small format meant heavy wear was almost inevitable within months of release.