20 Centavos

This long-running type survived two world wars, the collapse of the gold standard, and a decade of political instability under the Infamous Decade (1930–1943) without a single design change — a remarkable institutional inertia. Production continued at the Casa de Moneda in Buenos Aires throughout, though annual mintages fluctuated sharply with nickel supply pressures during the Second World War, contributing to the series' termination in 1942.