"First day of Issue", cover; postmarked, "Emporia, Kansas, July 31, 1948, 9:00 A. M.", addressed to "Mr. and Mrs. D. W. Polkinghorn, Box 508, Emporia, Kansas"; left side of envelope bears a photgraph of William Allen White, and is entitled "First Day Cover, William Allen White Author--"Editor 1868-1944", U. S. Postage stamp in upper right corner, "William Allen White, United States Postage, 3 cents"; a. Envelope. b. Letter.
