Thanks everyone. They had a license and it says, for the first time, legally. I just assumed that there was something going on, before that and then after. But apparently the place was quite stealth.

I think the slots would be too early for slot coins, instead of US money. Maybe they ran the tables, if they ever had any, using cash?

Lovely that someone has something. Matchbooks are so hard to find. The photo says Hotel and Casino. But now another clue, the matches say Overland. Maybe?