CODY, William F 'Buffalo Bill' (1846-1917). Autograph letter signed, on Buffalo Bill's Wild West notepaper, 30th May 1908, New York. To 'Pony Bob', asking how his friend is, "I want to keep in touch with the few left of the old pony riders... There is no use in allowing ourselves to feel we are growing old. Buck up and never say die." Top corner clipped away