Just a wild and crazy guess.
Ketchum, ID.
I have a picture of the owner at the bar dates in the late 30's or early 40's.
I got some chips from his kids but they are just generics.
Its still open. Across the street from The Alpine Club, (now a different name, but still open). Gambling at the Alpine and Casino Club dates to 1936. Ernest Hemmingway liked the Alpine best, because of the food and the roulette.