10 Soles de Oro Reverse Trial

Trial pieces from Lima's Casa Nacional de Moneda in this period were produced internally to test die alignment, metal flow, and edge characteristics before authorizing full production runs. The reverse-only striking — against a plain or uniface blank — was a standard diagnostic step, not a presentation piece. Peru's monetary situation in 1971 was shaped by the Velasco Alvarado military government's aggressive nationalization program, which had brought the mint itself under tighter state control following the 1968 coup.

Few of these trials were preserved outside the mint's own technical records.