This plastic token was issued by Barneys at south-shore Tahoe (now Bills). The club closed in the late 80's.

The book on Nevada Promotional tokens lists this as number 31.0 with a value range of $4-5. I don't have this one in my collection in case you want to sell or trade it.

There was also a black token that looked the same and was good for 50 points and is now valued at $5-6.

I'm assuming these were part of an early program to reward slot players. Probably the points were redeemable in cheap merchandise, kind of like a carnival game.