Posted By:
Andy BaranJC,
There are only between 1 - 3 copies of each player known. There is only 1 known Cy Young, which is nestled away in the collection of a prominent memorablilia collector. There is also only 1 known Jesse Burkett, which unfortunately has had all of the borders (including the Just So advertising) trimmed away. Fortunately for me, the Burkett resides in my collection 
There is speculation that there could have been cards produced for Buck Ewing and George Davis, but these have never been discovered.