Drat! I had #3 easy (having a torrent of Bob's last MDS on your computer is helpful!). My first guess with #2 was the back of More or Less mainly because it looked like a newer prop. I also figured since pictures #1 and #3 were related, I thought all three pictures might be connected. So, the newest game on the roster for Bob's final MDS? More or Less.
However, I easily deciphered Stack the Deck on my 2nd guess. There just wasn't enough information for me in that picture before. The shapes of the cards were a dead giveaway.
Unfortunately, #1 did me in. I guessed Bob's "50 Years" special. So these were the dates on which the doors were redone? Can someone give me a list of what these "Specials" were, and how the doors were "redone"? The MDS's always used the same set of doors, I thought.