First have it examined by an expert -- try taking it to a coin show and having it examined. Then, if it's a valuable error, have it certified by PCGS or NGC.
i DON'T KNOW IF THE COIN IS LEGITIMATE BUT I DO KNOW THAT A 1991 MARK TWAIN COMMEMORITIVE COIN IS $10+SPOT
The only legitimate way to know is for them to tell you. All other methods are based on generalizations, and are often in error.
Then it would be an error coin. I suggest you take it to a coin shop and have them look at it to determine whether or not it is actually an error coin.
The value of any error coin depends upon the nature of the error. Please examine your coin and submit a new question describing the error.
If the "penny side" is copper-colored, then it is probably a magician's coin manufactured from a quarter and a cent, in which case it has no collector's value. On the other hand, if it has a cent reverse where the quarter reverse should be, it may be a legitimate error coin. This determination and evaluation should be made by a reputable dealer in error coins.
Easy, there's no such coin. If anything, it could be an error coin. American pennies were never minted in silver.
A "misprinted" coin is called an "error coin". These occur when there is a malfunction of stamping machines or a case of human error. The result is a coin which is not perfectly struck or has a design flaw. In order to give an accurate estimate of value, the exact nature of the error must be known. Please examine your coin again and then submit a new question giving a description of the error.
its FIDOA coin containing a minting error. [ f(reaks), i(rregulars), d(efects), o(ddities)
It depends on the error, the best to do is take it to a coin dealer so it can be seen.
Its an error coin, error coins can be quite valuabel but it depends on what kind of error it is. For example, an off-center strike is worth less then a coin with brockage. I suggest the CONECA forum for more answers.
Many believe a shift error happens in the stamping process. The coin (blank) shifts or moves when the coin is being stamped, causing the coin to have a blurred stamping.
Yes indeed they are!!