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Because so many coins are minted each year there are lots of opportunities for slip-ups to occur. Broadly they fall into two categories: mechanical errors, due to failure of the metal blanks or machinery used to make coins, and human errors, where someone simply makes a goof during the manufacturing process.
There are so many different kinds of mint errors that rather than trying to list them all here, I've posted a link below to an excellent discussion at CoinFacts.com
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How do you get coins from the mint?
you can get coins from the mint by ordering the coins through the us mints web site follow this link www.usmint.gov.
How many 1902 pennies exist?
US Mint statistics report 87,376,722 regular issue coins and 2,018 mint "Proof" coins. Unless uncirculated these coins are very common.
Are all s Mint coins proof?
No. The US Mint in San Francisco has produced many coins for circulation since it opened in 1854. Prior to 1968 nearly all proof coins were made at the US Mint in Philadelphia, Pennsylvania. Beginning in 1968, all proof coins were produced at the US Mint in San Francisco although this mint continued to produce Lincoln Cents for circulation until 1974 and Jefferson nickels until 1971. In 1984 the US Mint at West Point, New York began minting proof coins as well. The Philadelphia Mint also produced proof $1 coins in 1999.
What US mint makes the most coins?
The United States Mint, responsible for producing the nation's currency, manufactures the highest volume of coins, ensuring a steady supply for circulation and collectors alike.
What is the difference between a proof set and a mint set?
A mint set contains uncirculated coins from a specific mint in a specific year. Proof coins are specially made for collectors, minted with a higher quality finish, even mirror-like on some surfaces. Currently in the U.S., mint sets are available from Philadelphia and Denver, while proof coins are minted in San Francisco.
I know there weren't mint marks in 65-67 What is the value of a 1968 and a 1969 quarter with no mint mark is this an error?
It isn't an error, on most coins, the Philadelphia Mint didn't get a mintmark until 1980. So your coins were simply minted at the Philadelphia mint and not an error.
1989 mint set with two different mix marks in it Is this an error set?
The set should have coins from the Denver mint & the Philadelphia mint. 5 from each mint
Are bad coins from the mint valuable?
well, really depends, if it was an error coin then there is a possibility.
Were any Sacajawea dollars made without mint marks?
No error coins of that nature are known. Also, starting in 2009 the mint mark appears on the coins' edge instead of on the front.
What if there is no mint mark on a mercury dime?
Then your coin was minted at the Philadelphia mint. It isn't an error, most older coins show no mintmark if the coin was minted at the Philadelphia mint, pennies still don't show a mintmark for coins minted at the Philadelphia mint.
How do you find the worth of coins with errors?
Try this web site: WWW. MINT ERROR NEWS.COM
How much is isle of man 50p coin worth with mint error?
Mint error coins can fetch a premium over the normal coins. It is unlikely that you coin is worth more than £5 - £10 despite the mint error. Listing the coin on the eBay auction site with a good description and photograph should help the coin find its true value.
How much is a mint error coin worth?
Regardless of date and denomination, all error coins need to be seen to assess a value. Take it to a coin dealer.
Which 1dollar gold coins are worth more then a dollar?
So far just a few error coins missing the dates from the edge of the coins and the Proof and Uncirculated coins sold from the Mint have slightly higher values.Also I hope you know the coins are brass not gold.
Was there any 1971 JFK half dollars damaged during the mint process?
There are mis-struck coins in almost every series and date, but most damaged coins have been damaged after the minting process. Describe what you have and maybe we can tell you if it is a mint error.
Are casino coins the same as silver coins from mint?
All coins come from a mint. Casino coins are sometimes solid silver.
There is no mint on the 1891 Morgan silver coin you found what do you do?
The actual term is mint mark; all coins have a "mint" because that's where they were made. However most U.S. coins made in Philadelphia before 1980 didn't have a mint mark so if you can't find one that's not an error; it's perfectly normal.See the Related Question for more.
