1794 Silver Dollar
A 1794 silver dollar in mint condition was sold for $7,850,000 over the summer of 2010. As of April 2011, this is the most amount of money ever paid for a U.S. coin. 1794 was the first year the U.S. minted any silver dollar coins, and fewer than 2,000 total pieces were created. This particular dollar coin is remarkable for its incredible condition and the fact that some believe it to be the very first silver dollar ever struck by the U.S. mint.
1933 Double Eagle
A 1933 double eagle ($20 dollar gold coin) was sold for $7,590,000 in July of 2002, making it the second most valuable U.S. coin ever sold. This coin was never placed into circulation due to gold recall legislation. However a few specimens did manage to escape being melted down.
1804 Eagle
An 1804 gold eagle ($10 coin) in proof condition was purchased for five million dollars in 2007. This was a special coin from a set that was minted in 1834 for President Andrew Jackson as a present for foreign dignitaries. The coin was struck with the utmost attention to detail, thus making it one of the most spectacular coins ever minted. Specimens of this coin actually minted in 1804 are worth significantly less than those produced for President Jackson.
1913 Liberty Head Nickel
The 1913 Liberty Head nickel is the most valuable non-silver or gold coin ever minted by the U.S. government. In April of 2007, one of these coins fetched five million dollars in a private sale. Another one of these nickels was sold in 2005 for $4,150,000. Only a small handful of 1913 Liberty Head nickels were minted, and none were placed into regular circulation. 1913 Buffalo nickels are worth much less than 1913 Liberty head nickels.
1804 Silver Dollar
The 1804 silver dollar is another coin that had a very limited release. In August of 1999, one of these coins sold for $4,140,000. Several other 1804 silver dollars have sold for over one million dollars as well.