I know its not pro and not pre 40 but Its a nice item that I dont get to post much. Its a letter signed by Abe Saperstein all about the Harlem globetrotters. The letter was sent to another famous person (who I knew very well) John Cullen Murphy. John was an Illustrator for Sport,Sports Illustrated, Colliers, and many other Mags. back in the 40s -50s. He is most famous for being the Illustrator for Big Ben Bolt And Prince Valliant for many years. Just thought it was an intresting letter.