Didnt read any of the comments yet...
I find it interesting that of the 1st group of 11 cards shown, there are 9 different backs, the only cards I see that have the exact same back are the Revelle and Shaughnessy, and both of the AWA cards
...... some of the other backs are close but not exact (ie 2 pinstripes compared to 1 stripe, and font)
very interesting set, wish they were more common..... way out of my price range now