PCGS - The hoard of over 400 coins that was excavated somewhere in Central America was moved to Mexico, China, Hong Kong, and the United States all within a few years. It yielded four of the rarest Ferdinand VII Portrait 8 Reales coins, increasing the population of known examples by some 40%.

One collector in the United States understood the value of the hoard and the rarity of the Ferdinand VII 1808 coins and saved them from being cleaned, choosing PCGS to certify the examples alongside an 1808 with the bust of Charles III in the PCGS multi-holder, both coins from the same hoard.
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