Ron Hassey model (500T) Worth Tennessee Thumper bat signed in blue marker by thirty-three members of the 1988 American League Champion Oakland A's, including Eckersley, McGwire, Parker, Watson, Hassey, Baylor, Steinbach, Weiss, Lansford, Henderson, Nelson, Cadaret, Sinatro, Hubbard, Plunk, Mckay (coach), and Lachemann (coach). The signatures, all of which appear on the barrel, grade 7/10 on average. The bat (34.5" in length) remains in Excellent to Mint condition. Full LOA from JSA.