I found this 2.5" x 3.9" card at the local Antique Faire, along with others "paper" belonging to this (AZ State) Senator Benjamin L. Arnold. I'm trying to date the card, but perhaps the good Senator was there when "Arizona Club" poker chips were in-use.

The Arizona Club is listed in Ed Hertel's On-Line Illegal Guide, as well as TGT (49 S. Central Ave. (Luhrs Hotel) Phoeniz, AZ, 1939).

Thanks for looking!

Jim