Gorgeous Meyer-Optik Gorlitz Helioplan from 1929, clean and healthy (colorization spots are usual for this kind of uncoated lens), custom adapted to serviced Prontor-S shutter with fastest speed of 1/250s. Even correct brass adapt ring for rear system has been devised. Lens covers 6x9 and would ideally suit most bellows cameras of that category. Lens will give optimal performance.

p.s. Missing is aperture scale label - previous owner painted values on shutter and i just left it as such.