10 Nuevos Pesos Piramide del Castillo - 5 oz Silver Bullion

This five-ounce piece belongs to the Mexican Mint's Onza series of large-format silver bullion coins, which expanded significantly in the early 1990s as Mexico sought to capitalize on collector and investor demand for high-purity silver in monumental sizes. The 1994 date places it squarely in one of the most turbulent years in modern Mexican financial history — the peso crisis detonated in December of that year, triggered by a sudden devaluation that wiped out roughly half the currency's value within weeks.

The denomination itself, Nuevos Pesos, reflects the 1993 redenomination that replaced the old peso at 1,000-to-1.