My father met Mickey Mantle in American Airlines' Admirals Club in Chicago sometime in the 70s before boarding a flight for for LaGuardia Airport. He got his autograph on the back of his boarding pass, which features the cocktail menu. The boarding pass is intact and has a small smudge over the word "tonic" and there's a moisture spot and a slight crease just below center.

7.25 x 3.25 inches