Legendary boxer (1863–1917) who was the sport’s first three-division world champion, winning the middleweight title in 1891, the heavyweight title in 1897, and the light-heavyweight title in 1903. Desirable vintage fountain pen signature on a beige 5 x 4 slip with R.M.S. Otranto letterhead. In fine condition, with very light soiling along the left edge, some tiny creases, and trimmed edges. Pre-certified Steve Grad/PSA/DNA and RRAuction COA.