Suggestions for buffing out leather? (Shift knob in specific)(pic)
 

Hey all. I have this shift knob it was pretty dirty but I cleaned it out and I can see there's some slight wear on the leather but I think it can be restored to better shape. Not exactly sure how to go about restoring it so I thought I'd ask maybe someone might have experience with it. Here's a pic
http://imageshack.com/a/img922/7280/rbz2i3.jpg