American Revolution Bicentennial - 1776-1976 - 8-cent 1971 issue U.S. stamp. This stamp marked the first in a series planned for issuance through 1976.
Bureau of Engraving and Printing. Designed by Chermayeff and Geismar.
U.S. Postal Service; National Postal Museum: <a rel="nofollow" class="external text" href="http://arago.si.edu/category_2038988.html">American Revolution Bicentennial</a>