Advertisement – Continue reading below
4. Sacagawea Double denotation Mule Error(2000)—Worth$ 117,500
Miscalculations can be expensive, but in the coin world, they can also be extremely precious. This rare 2000 Sacagawea bone features a blend-up where one side looks like a Washington quarter while the other has the Sacagawea eagle design. Only 16 of these coins are known to live, and one vended for $ 117,500 at the transaction. A small error that led to a massive payout!