These 3 identical antique buttons are gorgeous and look like jewelry. They are 2.25" in diameter and 1/2” thick, amazing. I believe they are celluloid, they have 3 tiers, the bowl or bottom, then the tier above that, then the brim. The bottom two levels have a plasticity that when pushed in they bounce back. There are no chips or cracks, though if you push hard enough I’m sure they could be broken. The backs are metal, that have light wear, and could use a coat of black paint. They are not marked anywhere. Please see my other items as well. Contact me if you are interested in International Shipping.