50 Centésimos

Uruguay's 1960 coinage reforms were tied directly to the country's deepening fiscal crisis under the second Batllista governments, as chronic inflation eroded the purchasing power of earlier silver issues and forced a practical shift to base metal for fractional denominations. The centésimo, once struck in silver, had effectively become a bookkeeping unit by mid-century.

KM#41 ran through the early 1960s before inflation rendered even copper-nickel 50-centésimo pieces economically marginal — a trajectory that ended with the 1975 peso nuevo revaluation wiping out the old centésimo denominations entirely.