AA Double Telescope BY Ross

A WWII Anti-Aircraft Double Telescope, by Ross of London, For a similar mark III model see: The History of Science Museum, Oxford. (Inventory number: 86327)  Such instruments were typically operated by Observer Corps and Woman’s Ats units, and were used to track the height and bearing of enemy aircraft to assist in the accurate firing of anti aircraft guns  protecting the British coastline.    The instrument weighs in at a hefty 17.3kg (38lbs) and measures 82cm in width and 25cm high, excluding the transit case. Overall condition good, offering free worldwide delivery on this very rare piece of the Second Worlds war History, reference Lc3