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20 cent coin
The twenty cent coin had one of the shortest metal money and lowest circulation in U.S. coin history . Its mintage for general circulation finish only two age after it began . It was only released for circulation in 1875 and 1876 . The coin was not reeded – meaning it miss perpendicular channel on its edge – and , despite its plain bound , was too well confused with the tail .
Steel cent
The 1943 blade penny , also known as a steel state of war penny or steelie , was a variety of the U.S. one - cent coin which was wrought in sword because of wartime shortages of copper ( which was necessitate for ammunition ) . The steel penny is the only even - issue United States coin that can be picked up with a magnet .
Flowing hair dollar
The Flowing Hair dollar was the first dollar bill coin issued by the United States federal regime . The coin was minted in 1794 and 1795 . In May 2005 , a specimen struck during the 1794 production was sell in a private sale for $ 7.85 million , more than any other coin in history .
Double eagle
These treble bird of Jove gold coins had a $ 20 face value . Though 445,500 specimens were minted in 1933 , none ever formally circulated and almost all were melt down down because of the discontinuance of the domestic gold standard that year . Now , these coins are passing rare and prize at over $ 7 million .
Double strike coins
Every so often , the U.S. Mint makes an error when minting a coin . This drummer boy stern has what ’s scream a " dual strike error . " Such error often increase the coin ’s note value .
Three dollar gold piece
Only one specimen of the 1870 $ 3 atomic number 79 coin was believed to have been light upon , and it was sealed within the foundation of the new San Francisco Mint edifice . However , a 2d instance turned up 37 years later . Today , the mystery coin is measure at $ 2.5 million .
Liberty Head nickel
The 1913 Liberty Head Ni is an American five - cent piece which was produced in super determine quantities without the authorization of the U.S. Mint , give it one of the well - known and most sought after rarities in American coin collection . The coins were struck , without permission , by a U.S. Mint employee discover Samuel Brown . Today , only five are known to exist : two in museum and three in private collections . All are worth millions of dollars .
1804 silver dollar
The 1804 Silver Dollar is reckon to be one of the uncommon and most notable coins in the earth , because of its unparalleled account . Silver dollar date 1804 really did n’t appear until 1834 , when the U.S. State Department decided to create circle of coins to present as gift to certain ruler in Asia in exchange for swop concession . Because the silver-tongued dollar mark was still in use but had last been produced in 1804 , Mint employees strike several dollars with an 1804 date . Additionally , an employee of the mint in Philadelphia illegally struck a few 12 more example between 1858 and 1860 using the old 1804 die , most of which were confiscated and destroy , but a few of which hold out . Around 15 specimens survive today , and they ’re deserving as much as $ 47 million each .
