I think I understand what you are asking. By the dual dating it's one of 3 Bicentennial coins: A Dollar, Half Dollar or Quarter and regardless of which one you have it's only worth face value unless it's Proof or Uncirculated.
It's a common bicentennial half dollar, worth 50 cents.
How much is a bicentennial 1776-1976 quarter dollar worth
25 cents.
50 cents.
Assuming the coin says 1776-1976, it's worth 25 cents.
It's a common bicentennial half dollar, worth 50 cents.
How much is a bicentennial 1776-1976 quarter dollar worth
A 1776-1976 no proof quarter dollar worth in 2012
That's the bicentennial dollar, extremely common, and still worth one dollar.
25 cents.
25 cents.
50 cents.
25 cents
25 cents.
Assuming the coin says 1776-1976, it's worth 25 cents.
50 cents
I suspect the coin says 1776-1976, in which case it's worth 25 cents.