Vintage Poker Chips-Clay?

Description

Vintage Poker Chips-Clay?
I think these are clay-see picture of broken chip
But assume buyer knows more than I do-so you decide
23 Red
21 Blue
35 White
I did not try to clean -one site I saw on google said not to
Some are faded-believe they are pretty old-but again I don’t know for sure
See pictures for more details
Sold as is-also weighs more than a pound -so don’t bid if shipping charges are high due to your postal zone