white, 1970s, serial no. 63830, body G-VG, aperture blades move well, optics G, some haze & cleaning marks present, unknown mount, lens total length approx. 99cm, front lens element diameter approx. 17cm, lens only, built by special order, for military & research purposes,

a similar example (SN: 63831) sold at Leitz 10/03/2018 for €3,200, this example had an additional rear-mounting interface for its specific use, omitted from this example,