Good example of an original WW2 military issue Telescope Sighting, used with various types of military guns both ground or vehicle mounted. The lens is still clear with ranging markers L and R and an extendable telescopic nose selection.
It is marked "Telescope Sighting No.22C MKII. OSJ63GA. 1943. 35204" and it also has a British military broad arrow. The body is finished in a black paint.