The 1794 Flowing Hair Silver Dollar may sit atop the rankings of the most expensive coin ever sold, at least for now. Some experts believe that it was the first silver dollar struck by the U.S. Mint. The front features a profile of Lady Liberty with flowing hair, while the reverse shows an American eagle. Fewer than 1,800 of these coins were ever produced, and one expert puts the number of remaining coins at between 120 and 130, so it’s quite rare.

The coin sold at auction for just over $10 million in 2013.