While numismatics indeed offers opportunities for valuable discoveries, the claim that three coins are collectively worth over $20 million each suggests an exceptionally rare and extraordinary find.
While such coins may exist, they are exceedingly rare and would likely be widely known within the numismatic community.
The 1933 Double Eagle: While most of these coins were melted down when the United States went off the gold standard, a few were stolen and subsequently recovered, making them highly sought after by collectors. In 2002, one 1933 Double Eagle sold at auction for over $7.5 million.
The 1794 Flowing Hair Silver Dollar: The 1794 Flowing Hair Silver Dollar is one of the rarest and most desirable American coins. Only around 150 of these coins are believed to exist today.
The 1787 Brasher Doubloon: The 1787 Brasher Doubloon is one of the earliest American coins and is considered by many to be the first gold coin struck for the United States.
These examples illustrate the incredible value that rare and historically significant coins can command in the numismatic market.