The 6-cent Stone Mountain Memorial Carving commemorative postage stamp was first placed on sale at Stone Mountain, Georgia, on September 19, 1970.
Portraying Robert E. Lee, Jefferson Davis, and Thomas J. "Stonewall" Jackson on horseback, the stamp was issued in conjunction with the dedication of the Stone Mountain Confederate Memorial in Georgia on May 9, 1970. The design of the stamp is a replication of the actual memorial, which holds the record for the largest high relief sculpture in the world. The relief shown is carved on the side of Stone Mountain, 400 feet above the ground.
The stamp was designed by Robert Hallock, issued in panes of fifty, with an initial printing of 130 million.
Postal Bulletin (August 13, 1970).
Stone Mountain Park. "Confederate Memorial Carving." http://www.stonemountainpark.com/outdoors-recreation/outdoor-detail.aspx?AttractionID=486