1954 Mexico 10 Centavos

This 1954 Mexican 10 Centavos coin was struck from an aluminum-bronze alloy, a shift that reflected Mexico's efforts to modernize its currency after World War II.

That material choice made the coin lighter and cheaper to produce than its predecessors, which had used copper or silver. The obverse features the national coat of arms: an eagle perched on a cactus, devouring a serpent—a design unchanged since the 19th century. On the reverse, you'll find the denomination in a simple sans-serif font, flanked by wheat ears for a touch of agricultural symbolism.

Mintage figures for this year are murky; official records from the Mexico City Mint aren't always reliable. I've handled plenty of these over the decades, and they're common in circulated grades, though uncirculated examples can surprise you with their luster.

It's amusing how some collectors spin tales about these coins being "lucky charms." As if a piece of metal could change your fortunes.