Description:Frank Baker autographed Centennial of Baseball cover. Vintage postal cover bearing both the 1939 Centennial and 1983 Babe Ruth stamps (postmarked in 1983) has been signed in fountain pen, "J. Franklin Baker" rating 8-8/9 out of 10. Hint of light toning. Includes auction LOA from JSA: Sig. NM, Cover EX/MT