With only five known to exist, the 1913 Liberty Head Nickel is one of the most coveted and valuable coins in the world.
Considered the "King of American Coins," the 1804 Silver Dollar is extremely rare, with only 15 known specimens.
The 1933 Double Eagle holds the record for the most valuable gold coin ever sold at auction, with only a handful legally owned by collectors.
As one of the first coins minted by the United States, the 1794 Flowing Hair Dollar is highly sought after for its historical significance and rarity.
Due to a wartime shortage of copper, a few 1943 pennies were mistakenly struck in copper instead of zinc-coated steel, making them exceedingly rare and valuable.
With a mintage of only 55,680, the 1911-D $2.50 Indian Head Quarter Eagle is a key date in the series and highly prized by collectors.
A few experimental aluminum pennies were struck in 1974, but most were recalled and destroyed, making the surviving examples extremely rare and valuable.
The 1894-S Barber Dime is exceptionally rare, with only nine known to exist, making it highly coveted by collectors of U.S. coinage.
An error at the Philadelphia Mint in 2000 resulted in a small number of Sacagawea dollar coins being struck with the reverse design intended for the Washington quarter