100 000 Pesos Pattern, brass

In 1990, Mexico's monetary system was under sustained pressure from the long tail of the 1980s debt crisis and peso devaluations that had collectively stripped the currency of roughly 99% of its purchasing power over the prior decade. The Casa de Moneda explored high-denomination pattern coinage as part of contingency planning before the eventual redenomination that would, in 1993, replace 1,000 old pesos with a single Nuevo Peso.

This brass pattern never advanced to circulation. The redenomination strategy rendered the entire high-denomination series obsolete before production could be justified.