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5. The Project Black Swan
The Black Swan Project: Treasure from the Depths Estimated Value: $704.86 million* Year Lost: 1804 Year Found: 2007 Odyssey Marine Exploration’s “Black Swan Project” recovered gold and silver coins worth over $700 million. The treasure was tied to the Spanish frigate Nuestra Senora de las Mercedes, sunk by the British in 1804.
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The Legal Battle of the Black Swan Treasure After a lengthy court case, the coins were returned to Spain and are now displayed in a museum in Cartagena. The Spanish government pursued legal action against Odyssey, ultimately winning the case and imposing a $1 million penalty for misconduct.
