Original U.S. WWI X7.5 Model 1918 Trench Periscope by Wollensak Optical Co. - Formerly Part of the A.A.F. Tank Museum ZB 26-ZB 30 M4 / IMPERIAL on the

M4 / IMPERIAL on the blade side of hand guard for the Imperial Knife Co

and this is almost sure to appreciate in value over the years

Overall Length: 65 Inches

The Japanese military acquired their first aircraft in 1910 and followed the development of air combat during World War I with great interest

Japanese cavalry sabers

Original U.S. WWI X7.5 Model 1918 Trench Periscope by Wollensak Optical Co. - Formerly Part of the A.A.F. Tank Museum ZB 26-ZB 30 M4 / IMPERIAL on theOriginal item: Only One Available. Measuring 19 nches 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 optic came to us from the American Armoured Foundation, Inc. Tank and Ordnance Memorial Museum. The AAF Tank Museum was a living memorial dedicated to the Tank and Cavalry soldiers