Offered are four CHIPCO sample chips and I'm not sure what the fifth chips is. Advertising?

Offered as individual chips at $5 each, or $20 for all 5, on a first come, first served basis. The two sample chips on the left are part of a series of at least 6 different denominations with the same reverse. The middle chip is one of five from a series that commemorates the Millennieum and the 4th chip is from a another series of at least 6 chips with different denominations, and the same reverse.

Again, the fifth chip is unknown to me as to what it is promoting. I am not familiar with Indopacific Gaming, but would like to know more.

Prices include shipping in the US and while I do prefer PayPal, I will also accept most forms of snail mail payment.

Thanks for looking!

Jim