Carlos IV Real

The Carlos IV real was minted from silver mined in the Americas, particularly Potosí, which helped bankroll Spain's imperial ambitions even as domestic finances frayed.

This coin, typically weighing around 3.4 grams for the one-real piece, featured the king's portrait on the obverse and the Spanish coat of arms on the reverse, a design that echoed earlier Habsburg styles with subtle updates. Variations in die work across mints like Mexico City or Seville meant no two were exactly alike, though quality control was spotty.

We don't know the exact mintage for every year; archives burned in the early 19th century. What survives shows these reales circulated widely in Europe and the colonies, often at face value until war disrupted everything.

In a twist, avid collectors treat them as exotics now, forgetting they were everyday currency back then.