George,
Please correct me if I am wrong, but I believe there are only 7 different versions of the Flamingo Hilton 50th.:

Two Bugsey Siegel (one with the dot and one without)

Two 1946 Building (one with the dot and one without)

Three 1996 Building (one with the dot, one without the dot, and a third with the dot, but a finer(smaller-straighter 1996 font)

If anyone does have a 1996 Building fine font 1996 without the dot, I would like to see a picture. And I would suspect it to be worth a pretty penny.
Thanks