Vintage Hebrew Judaism Wooden & Brass? Medallions Necklace or Decor

So I'm not really sure what this is. It was being sold at a charity fundraiser as a vintage necklace but it could possibly be for decor or some other purpose. There are round pieces of wood and inside them are a different picture depicting Judaism such as a menorah, Star of David, some Hebrew wording, and other things that I'm just not familiar with. I don't know if these are brass coins or what they are made of but it's so unique and it deserves a home that can truly appreciate what it means. I ship items 4 times a week. Please note I live in rural Oregon and our post office is understaffed and overwhelmed. Items are sometimes not scanned in until they reach Seattle or portland. Comes from a smoke-free and husky friendly home.