The reason you're skeptical is because what you're looking at is a pile of junk. You can take that to the bank. (The few polished examples shown may be an exception and are probably not from the same batch.) One ring still has the nub of metal attached from where it was cast. The closeups show castings so horrible that there's NO WAY they ever could have been sold. This is nothing more than amateur metal casting gone horribly wrong.