1776-1976 D to some having no mint marks, etc. Bicentennial Quarter

Description

Bicentennial George Washington Quarters
Coins are randomly picked.
You have Filled D's, No mint marks,
as well as who knows, different mint types.
The coin was
minted in the years 1975 and 1976 and carried the dual dates of 1776-1976
. During the release of the Bicentennial coinage, no coins of this denomination carried the single date of 1975 or 1976. The reverse of this coin replaced the eagle reverse of the Washington coin during 1975 and 1976.