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The Cerro Rico Hoard consists of nearly 1,400 Spanish colonial silver cob coins, almost entirely 8 reales ("pieces of eight") minted at the Potosí mint in Bolivia (Upper Peru) from silver mined at the legendary Cerro Rico ("Rich Mountain"). These hand-struck, irregular coins (~27g, 91.7% silver) date mostly to the early–mid 1750s (e.g., 1751–1754 under Ferdinand VI), with some earlier; assayers include "q", "C+q".
Likely lost ~1752 during overland transport from Potosí, the hoard (a land find, not shipwreck) remained hidden for over 250 years until discovered in the early 2000s.
Many survive in high grades (AU/MS), with bright surfaces after conservation; NGC certifies them as "Excavation Recovery" from the Cerro Rico Hoard.
No other denominations or metals (e.g., gold) are associated—it's overwhelmingly these iconic Potosí 8 reales cobs, prized by collectors for their tie to colonial silver wealth and "pirate coin" lore.
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