1962 Exhibits postcard signed by Milwaukee Braves HOFer Warren Spahn.  Mint signature in blue sharpie.  Slabbed and authenticated by PSA/DNA.  100% authentic.  The Exhibit card itself measures 3 1/2" x 5 1/2".  Has some edge and corner wear from age and handling.  We are an 10+ year seller on ebay.  Buyer pays $9.95 for secure shipping and insurance. See my other auctions for more unique memorabilia at low minimum bids.