Original U.S. WWII Navy Mark 21 SARD 7x 50 Binoculars by Square D - Bureau of Aeronautics Issue Helmets location and style of text

location and style of text is typical German WWII

38-inch overall length cavalry carbine with saddle bar and two saddle rings has lock markings of the Birmingham England contractor C

The M20 weighed 14

Illumination inside the binnacle became a problem so non ferrous metal lanterns were introduced for use at night

Original U.S. WWII Navy Mark 21 SARD 7x 50 Binoculars by Square D - Bureau of Aeronautics Issue Helmets location and style of textOriginal Item: Only One Available. This is an excellent condition pair of WWII U. S. Navy Mark 21 SARD 7x 50 Binoculars by Square D specifically designed for the Bureau of Aeronautics. When the mission was to observe movement across a wide expanse of sky or water then a binocular with a much wider field of view was justified. Several wide angle binocular models were commissioned specifically for the Bureau of Aeronautics whose vital work included