American golfer (1894-1968) who, despite suffering a severe eye injury during World War I, went on to win three major titles; he was elected to the World Golf Hall of Fame in 1976. Vintage fountain pen signature and inscription, "To my pal Marshall Bean, from Tommy Armour,” on an off-white 6 x 3.25 sheet. In fine condition. Encapsulated in a PSA/DNA authentication holder.