calvin r. griffith, the lifelong baseball man who inherited the washington senators from his uncle clark in 1955, passed away in october of 1999. for the 2000 season, the minnesota twins (the team formerly known as the washington senators) wore his initials on their left jerseys in griffith's memory. you can see the patch on this 2001 topps jacque jones card
as well as his 2000 upper deck mvp card
doug mientkiewicz (possibly the twins' next manager) is wearing the patch as he tries to break up an adam kennedy double play turn on kennedy's 2001 fleer ultra card
there's the patch again on torii hunter's 2003 upper deck big league breakdown card
racist comments made near the end of the 1978 season. as a result of those comments, rod carew sought and received a trade, and the twins continued to languish in the american league west for the remainder of griffith's ownership tenure.