Carlos III 8 Reales

The Carlos III 8 Reales, minted in Mexico, often featured assayer marks that indicated the specific silversmith involved, adding a layer of traceability rare for colonial coins.

These pieces were struck from high-purity silver, typically around 90-95% fine, sourced from local mines like those in Guanajuato. The obverse showed the king's bust, while the reverse depicted the Spanish coat of arms flanked by the Pillars of Hercules—a design that echoed ancient myths but served practical trade purposes. Mintage figures vary by year; some records burned in the 1838 Mexican archive fire, so exact numbers remain speculative.

Variations exist, such as overdates or different mint marks, which can trip up even seasoned collectors. If you're handling one from the 1770s, check for the telltale edge reeding; it's not always present, and that's no joke.