On October 31, 1931 St. Louis released Burleigh Grimes. Grimes, a famous spitballer, was one of the players who was still permitted to use the spitball even after the pitch was banned.
The future Hall-of-Famer hung on for a few more years, eventually becoming the last pitcher to win a game legally using the spitball.
(Here is a link to the list of players who were allowed to keep throwing the spitter until retirement, even after the ban:
http://www.baseball-almanac.com/legendary/lispit.shtml )
Show us an item of a famous old-time spitballer!
Here's one from the list: