A vintage Hugo Meyer & Co- Goerlitz Wide-Angle-Aristostigmat 1:9 Foc. 7 inches Lens Nr.405301 in need of refurbishment. Brass body and functioning click free aperture blades. Has the number 405301 on the back lens. Screw fitting measures approx 1.57 inch diameter. Glass is generally scratch free . This lens appears to be in good condition for it's age with no dings to the body. The lens needs a good service.