Heavy brass body waterproof up to approx. 30 bar (approx. 300 metres) with remnants of the original mouse-grey lacquer, porro II prism system with fixed focus, the lenses with transparent coating (T). Marked "U.D.F. 7 x 50" with serial number "318045" and manufacturer’s code "blc" (= Zeiss, Jena), foldable rubber eye shields, as well as graticule illumination with light/dark switch, coarse sight on the right, removable weather shields with cover plates. Clear lens system with line on the left.The lens system was part of the U.Z.O. (target bearing indicator) and served to sight surface targets for firing off torpedoes. With modern replica parts, for example the coarse sight on the right and the removable weather shields with cover plates completed. Condition: II -III