"First day of Issue", cover; postmarked, "Washington, DC, Dec. 15, 1960, 9:00 A. M.", entitled, "World-wide communications through space", addressed to "Mr. and Mrs. C. W. Polkinghorn, 5842 Mission Road, Mission, Kansas", U. S. Postage stamp in upper right corner, "Communications for Peace, Echo 1, U. S. Postage 4 cents". Color: WH,BK,PR