Odd. Never saw these before. Interesting. New codes? I guess the bone chips are vintage, but are the bird pictures on them? Reverse side is plain. Not my auctions.

https://www.ebay.com/itm/Antique-BONE-Polker-Chip-with-Grey-Bird-1-1-2/292648433434?hash=item442334b71a%3Ag%3AyjgAAOSwFpVbUj1T&_sop=10&_armrs=1&_sacat=0&_nkw=%28%22%400+poka%22%2C+pokar%2C+polker%2C+polka%2C+polkar%2C+pocker%2C+pocka%2C+pockar%29+chip&_from=R7&rt=nc&_trksid=p2045573.m570.l1313&_ipg=200

Robert