Original British WWI Mk IX Trench Periscope By R. & J. Beck Ltd. Dated 1918 MP 34 The receiver and lever both

The receiver and lever both show traces of case hardening in places

inverted-V12 aero engine

but in that time went to the ends of empire

There are some areas of minor flaking and bubbling scattered over the entire revolver

All parts are in very good to excellent condition

Original British WWI Mk IX Trench Periscope By R. & J. Beck Ltd. Dated 1918 MP 34 The receiver and lever bothOriginal Item: Only One Available. A periscope is an instrument for observation over, around or through an object, obstacle or condition that prevents direct line of sight observation from an observer's current position. In its simplest form, it consists of an outer case with mirrors at each end set parallel to each other at a 45 angle. This form of periscope, with the addition of two simple lenses, served for observation purposes in the trenches