Class Two 1804 Dollar: This dollar coin is one that you won't find in ANYONE'S collection: it's the only one in existence today. What is interesting about this coin is that it was originally a 1857 Swiss Thaler (the producer decided to strike the coin over another existing coin instead of making a planchet for it to be struck on).

Originally, the 1933 double eagle was supposed to be a common circulating coin in commerce. There were 445,500 originally made in 1932, and they were set to release in early 1933. But before they could be released, the current president at the time (Franklin Delano Roosevelt), signed Executive Order 9102, in an attempt to end the 1930s bank crisis, which was caused by hoarding of coins. It outlawed the possession of gold coins made for circulation, with an exception for pieces made for collectors. All of the 1933 double eagles were supposedly melted except for two, which went to the Smithsonian National Institute. Were they all melted? Unbeknownst to the general public, 20 more of the gold coins (probably stolen by the US Mint chassier) survived and ended up in the hands of coin dealer Israel Switt, who sold the coins off individually to collectors.