Dcam Quarter

1976/1975 bicentennial quarter dcam?

I can not find out about this coin in any coin book !!!!
and I have one ,does anyone know anything
about this coin!!!!!

There are five varieties of this coin:
1976 (plain, Philadelphia) cupro-nickel circulation
1976-D (Denver) cupro-nickel circulation
1976-S (San Francisco) cupro-nickel proof
1976-S (San Francisco) silver clad copper circulation
1976-S (San Francisco) silver clad copper proof

It actually has 1776-1976 on it, and they were made in both 1975 and 1976 (There are no 1975 US Quarter Dollars.). The mint mark (plain, D, or S) would be below the year. The coins minted in San Francisco came in US Mint sets, but several of them have been found in circulation. The easiest way to tell a silver from a cupro-nickel coin is by looking at the edge because the cupro-nickel coins will have a copper colored edge. The “DCAM” means “deep cameo” mirror finish which usually indicates a proof coin. The proof and silver varieties might be worth as much as $10US while the others are probably worth less than $2US. If it is slabbed (in hard plastic) and certified, it might be worth more than that. I hope that helps.

2010 PR70 ANACS FDOI LE DCAM National Parks Silver Quart…