Quote Originally Posted by Jim Noel View Post
TR triple convertibles are readily available inexpensively now. Some are very good, and some are very bad. They were hand assembled thus proper alignment was a common problem.

I suspect the issue is more that all of them suffered from balsam separation and those with clear glass have been re-cemented. Usually by some joker like myself who doesn't have the proper equipment to ensure the alignment is as good as new, which can be an issue re-cementing a 5-glass block like mine (my pics are quite sharp so I guess I didn't mess up too badly).

It might be a safer bet to go with a Protar VII if you want a vintage triple-convertible.