Mass Militaria & Antiques

Original World War II U.S. Navy Mark 21 SARD 7×50 binoculars, manufactured by the Square D Company for the Bureau of Aeronautics (Bu. Aero.). Featuring 7x magnification with 50mm objective lenses, these binoculars include coated optics typical of late-war production. Some models were equipped with a port for an accessory reticle illuminator and a filter for night use or glare reduction. These were issued for naval observation, navigation, and targeting duties during WWII.