I'm sure this is a very long shot, but if you go to the Wanenmacher Gun Show in Tulsa, there is a vendor there named Ballentine. I knew his father Russel Ballentine who collected these scopes. The son also collects and is selling them too. He has 100s of scopes of every vintage. He'll have a big sign up with his name on it and several tables full of scopes. Looks like an old hillbilly with long hair and a long white beard. Like I say, a long shot.