Abbott and Costello will forever hold a special place in the hearts and minds of all baseball fans by virtue of their classic comedy routine “Who’s on First?” Offered here is an extremely rare signed vintage 1956 RCA Victor 78-rpm recording of their famous routine. The album has been signed in blue ink by both Bud and Lou on the record’s "side 2" label. This particular record was apparently specially produced for the Baseball Hall of Fame, as noted by the printing on the label which reads “Abbott and Costello’s ‘Who’s on First?’ – Presented to National Baseball Hall of Fame Museum – Cooperstown, N. Y. – 1956.” Lou Costello died in 1959, so there was only a very short window for other examples of this 1956 album to possibly be signed. This is one of only a few examples of this extremely rare signed record we have ever seen. The record displays some chipping to a small area along the outer rim, as well as a few minor scratches. In Very Good condition overall. Together with its original brown paper sleeve.