1: The Flowing Hair Silver Dollar holds the record for the most expensive coin to ever sell at auction.

2: The 1933 Double Eagle coin sparked a battle between collectors and the US government due to its rarity and controversial origin.

3: The Brasher Doubloon, one of the first gold coins minted in the United States, is highly sought after by collectors.

4: The 1804 Draped Bust Silver Dollar is known as the "King of American Coins" and has fetched millions at auction.

5: The 1913 Liberty Head Nickel is extremely rare, with only five known to exist. It has captivated collectors for years.

6: The Saint-Gaudens Double Eagle, featuring Lady Liberty, caused a legal dispute between the US government and a collector.

7: The 1794 Flowing Hair Silver Dollar, the first silver dollar minted by the US, has achieved six-figure prices at auction.

8: The 1907 Indian Head Eagle $10 coin, designed by sculptor Augustus Saint-Gaudens, is a favorite among gold coin enthusiasts.

9: The 1792 Birch Cent, one of the earliest experimental coins made in the US, has been fiercely contested by collectors due to its historical significance.