Those particular series of Borland chips, with the open & close dates on them, aren't problematic IMO.

They are similar to the modern-day series of Dunes chips sold with Dunes-style graphics, open & close dates, and even with a Dunes HOUSE style mold.

See the page below, though other places sell them too. I like the seller. He is (or was) a club member. They don't concern me.

JMHO.

https://www.apachepokerchips.com/product/dunes-clay-poker-chips/