Description:Pair of Bill Walton Boston Celtics Grateful Dead souvenir t-shirts. Modern era Boston Celtics t-shirts having been worn by Walton each having Grateful Dead theme across the front with one dated 1991 and another having 1973 date (retroactively). Size XXL and 3XL with Liquid Blue manufacturer's label inside both collars. Light to moderate use/wear. Includes certificate of provenance from Walton Family: EX