Original British WWI Mk IX Trench Periscope By R. & J. Beck Ltd. Dated 1918 Cannons & Mortars Three officers in the trench

Three officers in the trench were killed

Berdan II was among the most powerful service rifles in the World

75 in) blade and an overall length of 514 millimeters (20

Consisting of an oval shaped oak wreath in bronzed zinc

The shell is maker marked with a stamping on the underside of the rim that reads ZD / 0

Original British WWI Mk IX Trench Periscope By R. & J. Beck Ltd. Dated 1918 Cannons & Mortars Three officers in the trenchOriginal 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