10. 1344 Edward III florin
Also called Double Leopard, the Florin was introduced in 1344 by English king Edward III. The coin had a worth of 6 shillings and was aimed for use across all Europe. The obverse of the coin depicted the King enthroned beneath a cover, with two leopards’ heads at the sides and the reverse shows the Royal cross within a quatrefoil and a leopard in every spandrel. The coin, nevertheless, was withdrawn just a few months later. It’s in all probability the rarest coin in the history of British numismatics. Only three specimens of this coin are known to exist currently. One piece is privately owned, which was sold at auction in July 2006 for $6, 80,000, record worth for a British coin. The opposite two are exhibited in the British Museum.
9. 1907 Saint-Gaudens double eagle Ultra High Relief
This coin was released in with face value of $20 in 1907. The coin was designed by renowned sculptor Augustus Saint-Gaudens. Its high relief rendered the coins troublesome to be struck, and only about two dozen pieces were produced. These are generally known as ‘Ultra High Relief’ specimens now. Later the design was modified repeatedly and the coin continued till 1933. Two specimens of the 1907 coin are housed in the Smithsonian museum. One specimen was sold at an auction in 2005 for nearly $3 million.
8. 1822 Half Eagle
The 1822 Half Eagle is certainly one of the rarest coins in the history of numismatics. It was released in $5 denomination by the U.S. Mint. The Capped Head Half Eagle on the coin was designed by John Reich. Around 17,796 pieces of this gold coin were produced, however there are only three specimens known to exist now. Two of them are housed by the National Numismatic Collection of the Smithsonian Establishment. The opposite specimen was sold in 1982 for nearly seven hundred thousand USD.
7. Liberty Head Nickel
The Liberty Head nickel is a 5-cent coin issued in 1913. It was produced without the authorization of the United States Mint, and in a really restricted numbers. The existence of the coins became public information only in 1920, all of which were owned by Samuel Brown, a former employee of the Mint. A specimen of the liberty nickel became the first coin to acquire a worth of US$100,000 in 1972. In 1996, one other specimen became the first to break the million-US$ barrier. Only 5 specimens of the coin exist now. A specimen was sold for $3.7 million in 2010.
6. 1804 Silver Greenback
The sixth place in the list of most valuable coins is occupied by 1804 silver greenback. These coins weren’t truly minted in 1804, however in the 1830s. That includes the bust of Liberty, this greenback coin was produced as a part of diplomatic gifts for Edmund Roberts in his diplomatic missions to Siam and Muscat. These coins are divided into three ‘Classes’, and only 15 specimens are known to exist. The Class I specimens are the most valuable ones. One specimen of Class I, previously owned by the Sultan of Muscat, was sold for $4.1 million in 1999.
5. 2007 Queen Elizabeth II
Produced in 2007 by the Royal Canadian Mint, it was the first coin in the world with a face value of one million dollars. Every specimen was made from 100 kg gold with 99.99% purity. Depicting Queen Elizabeth II on one aspect and three Maple leaves on the contrary, they were made to promote Canada’s new line of Maple Leaf gold coins. 5 of the coins have been purchased thus far. One specimen was sold for $4.02 million at an auction in Vienna in 2009.
4. 1787 Brasher Doubloon
This can be a gold coin made by the goldsmith Ephraim Brasher from New York. He produced the coins on his own, together with copper coins, when the New York state legislature rejected his appeal to mint new copper coins. There are a couple of varieties, based mostly on Brasher’s hallmark on the coins. One specimen which has the mark on eagle’s breast was sold for $7.4 million in 2011 and one with marks on the eagle’s wings was sold for $4.5 million in 2014. Just a few coins of those varieties exist now.
3. 1933 Double Eagle
This 20-greenback gold coin was minted in 1933 by the United States. Nevertheless, it was withdrawn in the same year, despite minting greater than four hundred thousand specimens. Designed by Augustus Saint-Gaudens, the coin depicted the Woman Liberty, holding a torch and olive branch. The coins were never circulated and virtually all the pieces were melted down, though a couple of were stolen and got into the hands of collectors. A number of them were recovered and destroyed. Lower than 15 specimens exist now, together with one which was sold for $7.59 million in an auction in 2002. U.S. National Numismatic Collection houses two and ten others are held in Fort Knox.
2. Flowing Hair Greenback
First minted in 1794, the Flowing Hair greenback was the first greenback coin issued by the United States federal government. It was designed by Robert Scot, its size and weight resembling those of the then popular Spanish greenback. The coin, composed of silver and copper, sported a bust of liberty on one aspect and an eagle on the other. It was replaced the next year. The historical importance and rarity makes it a favorite of the collectors. In 2013, a specimen of the 1794 mint was auctioned for a record $10 million.
1. Double Eagle (1849)
With just one specimen existing, this coin might be the rarest and most valuable coin in U.S. history. It’s certainly one of the two trial pieces that heralded the era of the $20 coins, nicknamed Double Eagles. The coin was minted in 1850, though it bears the year 1849. Its production coincided with the starting of the California gold rush. The prevailing specimen of this coin is now preserved at National Numismatic Collections at the Smithsonian museum. It’s valued at virtually $20 million.