For your consideration is this 1941 production United States Navy Bureau of Ships telescopic Alidade Mk.II Mod.2 No.1009. It is marked DR 465961-1 on the top of the tube. Overall condition is good, with all glass intact and most of the finish remaining. This measures 14.25” long on a 10” base and with an overall height of 6.5”. The green leveling vial is present and intact. The brass degrees ring has some tarnish.