I bought a Bausch and Lomb Tessar Ic today that I hope turns out to be a good deal in the end. The lens was hazy but my experience with previous B&L Tessars is that I could easily open them and clean the haze away. The rear cell thankfully turned out to only have haze on the outside surfaces. The front cell, sadly has haze on the internal surfaces too and I can't figure out how to get the damned thing open. The front lens is slightly loose/rattly and it looks like the crenelated ring with the inscribed lens info should screw out of the barrel but it won't budge. Any ideas on what to do?


Crappy cell phone pic of the victim: