The hilarious Who's on First routine on both sides of a 10 inch diameter 78-rpm, signed by Lou Costello in blue ink and signed and inscribed 'To Bobby' by Bud Abbott in black ink on the record's label, which reads, 'Abbott and Costello's 'Who's On First?' Presented To National Baseball Hall of Fame Museum, Cooperstown, N.Y. 1956.' Accompanied by an unsigned photo of the comedic duo. In fine condition, with expected wear and creasing to sleeve. RRAuction COA.