Exceedingly scarce pin from the 1896-97 Whitehead & Hoag set, commonly known as "Cameo Pepsin" due to the advertisement sometimes present on the reverse of the pins (though the pins are often found with or without Cameo Pepsin advertising). The first large set of pins to feature baseball players, more than 140 subjects are known and more are added to the checklist as they are discovered. Typically subject to image fading and other condition flaws due to age, the pins are quite condition sensitive today. 

One of just two examples graded by PSA, picturing Bones Ely, well into his 30s  by the time he appeared on this pinback.  He would remain with Pittsburgh until 1901 when, at 38 years old, he was released.  He managed to finish out the 1902 season with Washington before retiring.