Original U.S. WWI X6 Model 1918 Battery Commanders Periscope by Wollensak Optical Co. U.S. Militaria with almost all of their

with almost all of their original paint

as the tension washer is worn

at American Bridge Co

Year of Manufacture: circa 1780

This example is marked with  40 in a circle

Original U.S. WWI X6 Model 1918 Battery Commanders Periscope by Wollensak Optical Co. U.S. Militaria with almost all of theirOriginal item: Only One Available. Measuring 27 3 4 inches in length, this is a very nice WWI Era Model 1918 Battery Commanders periscope. In X 6 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: BATTERY COMMANDERS PERISCOPE X6 MODEL 1918 M. F. G'D BY WOLLENSAK OPT. CO. ROCHESTER, N. Y. U. S. A. No. 7683 R. G. C.