25 cents.
The date is 1776-1976 and it's only a quarter.
Only face value unless in mint packaging.
Not a lot, and most people ask too much.
Please check your quarter again and post a new, separate question. The first US quarters were minted in 1796. If you have a dual-dated 1776-1976 quarter it's one of the billions minted for the US Bicentennial, and is worth only face value.
25 cents.
There were no special coins issued for the US Centennial in 1876.If you have a modern bicentennial quarter with 2 dates, 1776-1976, it's only worth face value in circulated condition.
A US quarter has a face value of 25 cents.
It is worth face value unless it is still in the original mint package.
It may have been plated with gold but it adds nothing to the value of the coin.
The U.S. did not strike quarters with the 1975 date. Dual-dated quarters bearing the date 1776-1976 were issued during all of 1975 and 1976 to honor the Bicentennial. If you have a quarter with that date it is either a fantasy piece or a counterfeit and has no numismatic value.
It's just a Bicentennial quarter, spend it.
It's the Denver mint mark, indicating where it was made. And does not add to the value it's just a quarter