1790 Ferdinand IV 4 Escudos

Gold escudos from the Mexico City mint in the late 18th century were often struck from ore mined in the region's rich veins, a process that directly tied New World wealth to European crowns. I'm not entirely sure about a specific 1790 4 Escudos issue under Ferdinand IV, as that title doesn't align with Spanish royalty of the time—Charles IV was on the throne, and Ferdinand IV was king of Sicily, not Spain. Colonial records are murky; perhaps this coin exists as a variant or error, or it's a collector's myth based on similar issues. What we do know is that these coins typically bore the Pillars of Hercules design, symbolizing Spain's global reach. As for exact mintage, it's probably buried in some unrecovered archive. That said, handling one of these after thirty years still sparks a quiet intrigue, even if the details fade.