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.
25 cents
Check with any local coin collector for sure, but this coin can be worth a LOT of money.
A Buffalo Nickel stamped on a penny is worth $800.00. A Jefferson Nickel stamped on a ZN penny is worth $70.00. A Jefferson Nickel stamped on a CU penny is worth $60.00.
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 worth of a triple stamped penny will vary depending upon its circulation and overall condition. It can be worth anywhere from $1.00 to thousands of dollars.
Need more details on how it is misstamped, it could be worth only a few dollars to upwards of $100.
A 1999 penny with an 'off-center' error is worth $3.50.
This is a rare misstruck error and is worth up to $90.00 according to condition.
1¢
Do you mean a quarter DOLLAR? Quarter eagles were not issued in 1968. And could you describe "double 'stamped"" ? (note the term is actually "struck" in coin jargon).
25 cents
25 cents
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.
30 cents; 25 for the quarter part, 5 for the nickel part.
The US Mint has never made a one cent coin of silver. It may have been plated but it's only worth one cent unless you find someone that wants it.
Error coins need to be seen. Take to a coin dealer.
It's still worth 25 cents, that's all.