The best way to explain a "choken" is a cross between a chip and a token. They fit well into either collection. The type shown is metal, coated in ceramic. They never caught on because they chipped and would not stack at the tables. They are getting very hard to locate in nice condition. Check the catalog on these and you will be amazed. I will trade all three of these for two unused, current, different, $2.50 chips. Please send scans.