This is a novelty or magic coin that has been altered and was not produced by the mint
And has no collection value at all.
This could happen if two blank planchets got into the press together, causing on to get stamped with only the heads side, and the other to get stamped with only the tails side. This is a relatively rare error, and could be worth $50 to $100 or more. This could also be a normal quarter that somebody has altered. If it weighs significantly less than 5.67 grams, then I would say that it has been altered and has no added value.
$8 - $10 at a novelty shop. $2 - $3 on eBay.
Check with any local coin collector for sure, but this coin can be worth a LOT of money.
What you have is called an off-center strike. (Note - coins are said to be struck rather than "stamped"). This error happens when a coin blank doesn't land squarely in the collar that holds it in the press while the image is being struck. The value of an off-center strike depends on the coin's denomination, date (if visible) and the amount of the image that is shown. Assuming you have a modern clad quarter, it might be worth anywhere from $5 to $30 if more than 40% of the image is showing. If less than that is visible, its value could range up to almost $100. Because each error coin is effectively a "one off" error, you'd need to have the coin appraised by someone who specializes in mint errors to get a more specific value.
The value of a 1951 quarter will value depending on the condition and where it was minted. The value ranges from 3.52 to 4.30.
If it has the tails image on both sides, how do you know its date is 1921? In any case if both sides are the same it's a prank coin made by joining halves of 2 genuine coins and has no numismatic value. The good news is that its silver content might be worth $13-$15. BTW, coins are minted or struck rather than "stamped"
This is a rare misstruck error and is worth up to $90.00 according to condition.
A coin with heads or tails on both sides are novelty coins manufactured by individuals or companies. They have no numismatic value although some persons collect them and the value is determined by the buyer and the seller of each coin.
This could happen if two blank planchets got into the press together, causing on to get stamped with only the heads side, and the other to get stamped with only the tails side. This is a relatively rare error, and could be worth $50 to $100 or more. This could also be a normal quarter that somebody has altered. If it weighs significantly less than 5.67 grams, then I would say that it has been altered and has no added value.
The coin needs to be seen for an assessment, take it to a coin dealer.
August 1, 2009 The US Mint has not issued a quarter with an "M" stamped on it. Probably what you have is a quarter that someone has put their initial on or marked it for some reason. With such a mark it has no numismatic value but is worth $2.52 for the silver it contains.
This is a novelty coin not made by the US mint and has no collectible value.
Since it's impossible for that to have happened at the mint, it would be considered a damaged or altered coin, at best a novelty item with a value of a buck or two.
It's just a state quarter that has been gold plated and it has no collectible value at all, unless you find someone that wants it.
$8 - $10 at a novelty shop. $2 - $3 on eBay.
Unfortunately regardless of the grade of the coin, the letters stamped on it reduced the value to the silver only, about $3.00
It depends on how far off center it's struck, take it to a dealer or collector for a better idea of value.