This very rare Voigtlander Heliar 21cm (210mm) f/4.5 super sharp large format lens has a rear thread diameter of 59mm. There is a small patch of separation inside of the front element grouping (please see photos). There are also a few scuff marks, scratches, and finish loss on its exterior. Its aperture blades close slowly when it is on the time setting. All settings adjustments are smooth and all shutter speeds sound correct. For continued reliable operation, you will need to find a cap for the other end of the pneumatic shutter, or ensure it is blocked. Its glass is free of any fungus or haze and there is no oil on its aperture blades.
