Original U.S. WWI X7.5 Model 1918 Trench Periscope by Wollensak Optical Co. With Leather Case Antique Guns All that is really missing

All that is really missing is the stopper for the canteen

and this example is marked 14605 next to the lanyard loop fitting

but we can still see the faint CROWN / V “viewed” and CROWN / GP markings of the London Proof House

and at that time was part of Holland

Original U.S. WWI X7.5 Model 1918 Trench Periscope by Wollensak Optical Co. With Leather Case Antique Guns All that is really missingOriginal item: Only One Available. Measuring 19 inches in length, this is a very nice WWI Era Model 1918 Battery Commanders periscope. In X 7. 5 power, these were used to help view and plot artillery attacks from behind cover, to avoid exposing the commander to danger. The bottom of the periscope still has the manufacturers markings: TRENCH PERISCOPE NO. 10 X7. 5 MODEL 1918 M. F. G'D BY WOLLENSAK OPT. CO. ROCHESTER, N. Y. U. S. A. No. 8356 R. G. C.