PCGS Genuine Philip III Bolivia 8 Reales Cob (1598-1621) Potosí Mint – 27.00g Silver

PCGS Genuine certified Potosí Mint 8 Reales cob (1598–1621) struck under Philip III of Spain. Environmental Damage – VF Detail. 27.00g silver. PCGS Cert #824121.97 / 54242777. Professionally slabbed and authenticated. Registered on TreasureCheck.ai for permanent digital provenance. This coin was struck at the Potosí Mint in present-day Bolivia — once the largest and most productive mint in the world, fueling the Spanish Empire's global ambitions. Under Philip III's reign, vast quantities of silver were mined from the legendary Cerro Rico mountain and hand-struck into these irregular "cob" coins, each one unique due to the crude minting process. For over four centuries, this 27-gram silver cob has endured — surviving the passage of time, the elements, and centuries of history. The environmental damage visible on the surface tells its own story of age and exposure, while the core detail remains remarkably preserved, earning a VF Detail grade from PCGS. Whether carried aboard a treasure galleon, traded in a colonial marketplace, or buried in the earth of the Andes, this coin represents a tangible link to the age of Spanish colonial dominance and the silver trade that shaped the modern world.

From the research desk

An early piece of eight from Potosí, struck under Philip III before the 1652 pillar-and-wave reform — full standard weight at 27 grams, hammered from Cerro Rico silver. No wreck, no salvage story: this is a cabinet cob, and on a cabinet cob the coin and the slab do the pricing.