"NEW GEORGIA ILLEGAL?"
No ? required, IMO.
I believe a phone book search for the late 40's will produce a listing for Pat's Place. It could have been a bar, social club, etc.

The number of chips issued would have been enough for a large poker game or a BJ table or a craps table.

I am guessing a crap game. The area was rife with them in that era. Per Amarillo Slim, former WSOP champion.