100 Pesos Quintana Roo - Gold and Silver Proof Issue

Quintana Roo was the last Mexican territory to achieve full statehood, not admitted until 1974 — over a century after most of the republic's other states were constituted. This series, issued by Casa de Moneda to mark each of Mexico's 31 states plus the Federal District, assigned Quintana Roo its own release as part of a multi-year program running through the mid-2000s.

The bimetallic proof construction, with fine gold core seated in a fine silver ring, places this among the more technically demanding issues in the program. Mintages across the state series were tightly controlled, rarely exceeding a few thousand pieces per issue.