Carl Yastrzemski Autographed First Day Cover Sep 29 1979 "3000 Base Hits" (JSA)

Carl Yastrzemski Autographed First Day Cover Sep 29 1979 "3000 Base Hits".  Signed in black pen across the front of the first day cover. This autographed first day cover is authenticated by James Spence Authentication Cert # AX93032.