Mamiya K/L 127mm f/3.5 lens. The front element is clean, but there is clouding on the rear element. Listed as junk, assuming repair is needed. The shutter fires crisply at all speeds, even 1 second, without sticking. According to other sellers, balsam separation can be fixed for around 10,000 yen, and I believe the clouding is simpler and can be fixed with cleaning, etc.