Original U.S. WWII Navy 7x 50 Mark 21 SARD Binoculars by Square D - Bureau of Aeronautics Iraq including Colliers

including Colliers

and steel pull pin with ring

and the date 1813

Constructed of steel with copper wire reinforced socket and all wood shaft

Original U.S. WWII Navy 7x 50 Mark 21 SARD Binoculars by Square D - Bureau of Aeronautics Iraq including ColliersOriginal 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