I'm selling my 21CM Heliar, comes with front, rear caps, and a UV filter.
It has a minimal amount of separation on the rear element, which has no affect on my negatives.
The shutter was serviced last winter, and is very accurate, with the timing dial that has been attached to the shutter speed wheel. Asking $450, shipped to your door.
Makes fantastic portraits. If you like your bokeh creamy, this ones for you