I don't know for sure, but I looked up Arabi and gambling and came up with a Wikipedia page about Arabi, Louisiana. Here is a section on the gambling there:

Gambling Era (1907-1952)
In 1907 Friscoville Avenue was developed in Arabi. Because of a ban on gambling in the city limits of Orleans Parish, the area the a gambling center with around 5 gambling halls along the 100 block of Friscoville Avenue.[6] Being just outside of the Orleans Parish line, Friscoville was, at the time, easily accessible by the Canal Street Car Line.

The clubs were frequently raided by the authorities, one such raid was noted by the Associated Press in 1928 when Governor Huey P. Long, upon learning of the re-opening of two clubs in Arabi, had delivered the request to have the clubs raided by the National Guard in person:

Illegal gambling crackdown in 1952.Names of 225 persons found in the two places, the Jai-Alai Fronton and the Arabi Club, located just outside of the New Orleans city limits, were taken for future reference. The patrons, many of whom were women, were released after being questioned.

Neil Simmes, staff photographer for the Time Picayune, was attacked and beaten by about fifty men as he attempted to take a picture. Guardsmen rescued him. He was unconscious when found.... Three officers and five meant when to the Jai-Alai Club and two officers and five men to the Arabi Club. The establishments face each other on the same street.

Heavily armed, the soldiers entered the clubs. Women screamed and several fainted. A shot rang out, believed ot have been fired by a sentry on guard to warn the gamblers of what was taking place. There was a quick grab for money on the gaming tables. Order, however was restored in a few moments. In a bonfire this afternoon the gambling paraphernalia that was flammable was burned. The remainder was hacked to bits with axes....

These establishments continued to operate until 1952, when they were shut down after a statewide crackdown on illegal gambling after the appointment of Col. Francis Grevemberg as superintendent of the Louisiana State Police. (The movie, "Damn Citizen" was made about Grevemberg in 1958

Also, I would guess that Christopher's poker room is from a home set (although I don't know, it looks like it). Location is "California, USA." Hmmm.

Michael Siskin