Murph, I truly don't know the composition of these pieces. They are light weight, with Asian (probably Chinese) writing on the back. One is engraved (or chiseled out) and the other just has writing on it. It looks to my untrained eye, that they were molded or casted.

I believe Allan Myers could probably give you a more detailed and accurate description. He might even have some extras available. If not and you want these, I will mail them to you.