Leica Leitz "Thin" Elmar f/4 - 90mm lens. Serial number: No. 320344. M39 screw mount. Black chrome. With front and rear caps. Circa 1936. 
Good condition. Presence of some traces of wear. The focus and aperture rings work perfectly. Lens without scratches and fungus. Presence of a very slight veil. Presence of a detachment around the edge of the rear lens. 
Antiq-Photo establishment
Leica Leitz "Thin" Elmar f/4 - 90mm lens. Serial number: No. 320344. M39 screw mount. Black chrome. With front and rear caps. Circa 1936.  Good condition. Presence of some traces of wear. The focus and aperture rings work perfectly. Lens without scratches and fungus. Presence of a very slight veil. Presence of a detachment around the edge of the rear lens.