^Lot 590 U.S. WWII M13A1 6x30 Binoculars W/ M17 Leather

Case; U.S. WWII M13A1 6x30 Binoculars W/ M17 Leather Case, Binoculars Appear in Overall Excellent Condition , Coated Optics The binocular M3 is a superlative instrument However, after a quantity of the M3 binoculars were issued and in use many difficulties due to the nature of military operations of World War II were reported. As a result of these reports, a concentrated study of the most minute details of Binocular M3 was conducted, which eventually resulted in the development of Binocular M13. The first problem to be considered in the development of the M13 from the basic M3 was that of waterproofing the instrument to withstand submersion