4 Reales - Carlos I

These are among the earliest coins struck in the Americas, produced at the Mexico City Mint within years of it receiving its royal charter in 1535 — the first European-style mint to operate in the Western Hemisphere. Production in this period was crude by design: dies were hand-cut locally, planchets irregularly shaped, and output prioritized speed over uniformity to meet colonial commerce demands. Carlos I was simultaneously Holy Roman Emperor Charles V, and the silver funding these coins came largely from early Mexican mining operations before the great Zacatecas strikes transformed colonial output in the 1540s.