One of These Things is Not Like the Others

I won a lot of 15 Ron Santo cards on ebay last week.  I already own all of them and in most cases several copies.  So why did I shell out $2.24?  Well, there was one card I didn't have.  Now it's time to play our game:

Here's 9 of the 15

Can you tell me which one?  Scroll down for the answer.

Yep, you were right!  It's a 1969 or 1970 Transogram.  There's a little ding on the right edge about a third of the way down.  Otherwise it's in excellent shape.  Scratch another vintage oddball piece off my list.

Here's what a complete panel looks like:

 And here's a box with the figures: