Here is one used Leitz Leica 400 mm Telyt f6.3 lens. Cosmetically, item shows many signs of use, wear and age, including a number of significant dings (see photos). Mechanically, all functions are smooth. Optically, seen from the rear, there is dust and what might be haze and fungus, which may or may not clean.
This item is in the category "Cameras & Photo\Lenses & Filters\Lenses". The seller is "chicagocameracollectibles" and is located in this country: US.