They cost about $8 in novelty shops.
It is worth nothing. You could try and take the two headed coin to a coin expert. But it is just a misprint.
If the two dates are 1776 & 1976 It's a bicentennial quarter and it's still worth a quarter If it's a state or territorial quarter, has two dates on the back and one of them is between 1999 and 2009 it's also just worth a quarter. If it has two heads with a date on each side it's a magician's coin - see the Related Question.
Zero. Please search this site for the word DOUBLE. You'll find hundreds of similar questions about these trick "coins".
There are no 3 headed quarters minted by the U.S. Mint.
It's a trick or magic coin and has little or no value.
It's a novelty coin sold in hobby and magic shops. It has no collector value.
Please check those dates. Your coin should say 1776-1976, meaning it's a Bicentennial quarter.
Dates are needed. Post new question.
It is worth a quarter :D
In that condition, it's currently worth just under $5 for its silver content.
How much is a 1911 quarter worth
A quarter is worth 25 cents.