Billy Martin #491 (The first baseball card ever to show a manager fighting with an umpire)
This is just an awesome piece of card board that I don't think I appreciated it 30 years ago. But now I would hang it on a wall. I don't think any card captures a sports personality to the Tee like this card. In the 1972 Topps set Martin is arguing with an Umpire on his in action card but all you see is the sleeve of the umpire. Here you can see the veins in his neck popping out. AWESOME.