You have what's called a lamination error. It occurred when one side of the coin's outer cupronickel cladding fell off due to a poor bond with the inner core of pure copper. Lamination errors can occur before or after the coin is struck, whenever the bond fails.
Current retail for this error on a pre-State Quarter design is about $10.
So the cost value of the metal used would be less than the face value of the coin. As copper was cheap.
None of the bicentennial quarters made for general circulation have any silver or are worth more than face value. Only Proof and collectors coins sold from the US Mint are worth more. All the 40% silver coins do have "S" mintmarks.
Don't even THINK about trying to clean a coin with muriatic acid. It will damage the surface and any possible numismatic value will be lost.You'll have a very shiny coin that is only worth its face value.
Because you asked this in the US currency section, I guess you are really talking about the one cent piece. This is sometimes called a penny because it is roughly the same size, shape, and colour as a one new penny. This used to be made of pure copper, but is now made of copper-plated zinc, so if you file away the coating, you will see the zinc inside.
It's easy to tell 1972 Ike dollars apart. If it has no mint mark or a D above the date, it's made of copper-nickel and is worth face value to maybe $1.25 in circulated condition. If it has an S mint mark it's made of 40% clad silver and might be worth about $7, mostly for its silver content. Some other years saw more varieties, but even so they're still simple to tell apart. The silver issues are lighter in color than the copper-nickel ones. Also the edge on a copper-nickel dollar will plainly show its copper color, while the edge on a silver-clad coin will be somewhat grayish.
This is called a 'Lamination' error and a statehood quarter with this error is worth $50.00.
It is only worth face value. It is intended for circulation and made out of copper-nickel.
...25 cents. It is in common circulation, made out of copper-nickel and not worth any more than face value.
25 cents, unfortunately, no more.
The U.S. Quarter has a copper core surrounded by a 75% copper/ 25% nickel face.
25 cents. It is made out of copper-nickel, contains no silver and is worth only face value. They are incredibly common and can easily be found in pocket change.
The U.S. Bicentennial was in 1976 (remember when the Declaration of Independence was?)You have an ordinary silver quarter from an ordinary year. It's worth about $3 for its silver content.Bicentennial coins found in circulation are dual-dated (1776-1976) and are made of copper-nickel, not silver, so they're only worth face value.
It is worth face value unless it is uncirculated then it is worth about 50 cents.
It's a common circulation coin worth face value only.
It is worth face value unless it is uncirculated then it is worth about 50 cents.
Nothing over face.
The coins are face value and have no silver.