I'm not completely sure, but I believe these were either show tack decorations, or worn on vests or chaps. One of them has an "eye", and the other has the hook. They're nicely made on silver colored metal. No marks to indicate maker, or metal content. Each measures about 2 by 2 inches, not including the hook and eye.
These are a part of a small collection of Western jewelry, and belt buckles that I will be listing in my shop. When purchased at the same time, there is no additional shipping cost after the first item. To see them all, type, "Western jewelry" in the California Girls search box at the top of this page