Famed Negro league pitcher (1907–1983), known for what many experts regard as the best curveball in baseball history, who was inducted into the Hall of Fame in 2001. Scarce ballpoint signature, “Hilton Smith pitcher Kansas City Monarch,” on an off-white 4.25 x 1.25 slip. In fine, fresh condition. Auction LOA Steve Grad/PSA/DNA and R&R COA.
