Andy,
Please allow me to add a few more questions and observations:
It has been rumored the Golden Gate years ago had an Asian section for gaming. Asians were not allowed, along with Blacks, to play in downtown Las Vegas after the war (WWII-the big one). This section was established in the Sal in an area off the lobby where the shrimp cocktail section is now.

I have talked to many individuals about this rumor. Some who are rather old tend to remember such a gaming area because as young men they wished to view these "strange" individuals with pony tails and funny looking clothing who were not allowed in any other part of the hotel and attached casino.

It is too bad this is all the information I could ever gather. I would guess the owners of the Sal allowed OTHERS to provide the games ,mostly Asian, I would guess. From past experience, I have learned that when an individual would provide a game for a hotel and/or a casino the chips used, if any, would generally carry the initials of the provider. JKH, Cal's, etc. so as not to confuse them with the casinos chips.

The chips under discussion here, to be applicable, would have to carry the hotel's initials. SSC would not be the hotels intials. SSH or just SS - the C standing for casino would be out of place. The Sal by itself would not have had a casino but a gaming area leased to another individual. Nothing in this discussion seems to fit. Here are my questions:

1) If these chips are roulettes as Gene seems to think wouldn't they be in a different mold for the time rather than a small key?

2) From my understanding the gaming area provided by the Sal for Asian gaming was very small - wouldn't roulette take up a lot of the room and leave very little for other games?

3) Is roulette considered an Asian game?

I have seen and had clarified chips with Asian letters. It appears in many of the Asian games around the country players would prefer to play with chips, if chips were used at all, designating name, value, place, etc. It appears the chips under discussion would not fit this.

These are just some of my observations and input into the matter. I'm afraid no other explanation could/would fit with a full fledge casino next door. Leasing of games WAS legal, but generally the game was poker. In an Asian game section would we find, if any, a need for the chip under discussion here? I think not.
Best, Jim