"The Old Perfessor" was one of a kind. And this official American League (Harridge) baseball with Casey's name and comments is NRMT. The signature on the side panel reads: "The Best from the 1956 Yankees and Casey Stengel." Signature and inscription in blue ink rate 8/10. The word "The" is slightly faded. A Hall of Famer, Stengel is the only man to have worn the uniform of all four New York teams: The Mets, Yankees, NY Giants and Brooklyn Dodgers" as either a player or manager.