Original U.S. WWII Navy 7x50 Mark 21 Unissued SARD Binoculars by Square D - Bureau of Aeronautics Category_MG 34 Buffer & Butt Stock It also shares the early

It also shares the early design "unbridled" lock

with small tabs on either end

The overall machine work of the components was improved over the LP28

This marking indicates the dagger was made by RZM Dagger contractor "81"

The blade is a fine nickel-plated example still being bright throughout and in near excellent condition

Original U.S. WWII Navy 7x50 Mark 21 Unissued SARD Binoculars by Square D - Bureau of Aeronautics Category_MG 34 Buffer & Butt Stock It also shares the earlyOriginal Item: Only One Available. This is a very good 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