The 1 Escudo coins of the Portuguese Republic are the only denomination issued continuously from the early years of the Republic in 1910 until the adoption of the Euro in 2001. Over nearly a century, this coin went through several monetary systems, with changes in module, design and metal composition. The 1 Escudo issues were struck in silver, aluminium‑bronze, copper‑nickel (alpaca), bronze and brass‑nickel (in both large and small modules), reflecting the economic, technological and aesthetic evolution of Portugal throughout the 20th century. This category brings together all 1 Escudo series, allowing collectors to follow the historical development of this denomination. For detailed information on each system, please refer to the corresponding subcategories.