Wow! Antique-shop.com forums are in the big #1 spot on Google for the search term "antique shop forum", for 4 years running!Thanks to YOU.
What are the dimensions of the piece?I believe this could be a key ring fob! They were very renowned for watch fobs but this isn't made like those.Company history http://www.bastiancompany.com/about.shtml
Wonder why nothing came up when I searched for unions with those initials ??