Original U.S. WWII Navy 7x50 Bu. Aero. Mark 21 SARD Binoculars by Square D with Polarized Filters in Case Russian Navy Stiria GB "Star" 66 M17

Stiria GB "Star" 66 M17

The binocular M3 is a superlative instrument However

Voyenno-Vozdushnye Sily (VVS)

EGA (Eagle Globe & Anchor) visor hat device

It comes in its all steel scabbard

Original U.S. WWII Navy 7x50 Bu. Aero. Mark 21 SARD Binoculars by Square D with Polarized Filters in Case Russian Navy Stiria GB "Star" 66 M17Original 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