I bought this lens recently. It is new [unused] old stock. Branded Mosler, though made in Japan. Looks compact and is old fashioned, only stop down, not even pre-set. It resembles the old Meyer Lydith 30mm, a lot. I used my old Exakta VX to suit the lens and walked around to make some pictures at random. A major change this time is that my brew is new. I bought X-ray developer from a different source this time, made in Nasik, Maharashtra near Bombay. It is branded “Premium” and sold by Allied Photographics; they used to sell Agfa products and Pentax cameras in the 1970s and 1980s. Now they are into X-ray films and chemicals, as it is a large expanding market. I am not sure if this is related to the “Premium” made in the US by Brown’s Medical Imaging. I used ORWO UN54 for this effort. Here are some samples from today's walk.