I picked these up face value ~2005 (I liked to bring a barrel or more home from casino visits. I wanted to make a mixed set of white $1's but never finished.)
I used to travel every year to the convention center outside O'Hare and took a drive one time to the MS.
I do not remember the entrance as posted in the OP; they must have had a BIG facelift later on (lol).
I would guess all are in better condition than most in the sale. Edges are not rounded, but have assorted dings.
I did not notice I had two versions until just now. I noticed the edge spots were more narrow on some chips and not as rounded on the inside.
Then the obvious hit me: red and black $1 print.
some GV's from the same area (Chicago).
I must have picked these two up at the same time.
Hard to believe they were still in play 10 years after the opening.
I think I picked them out of a rack of mixed.