GUIDE BOOK FOR MARINES, PUBLISHED BY THE LEATHERNECK ASSOCIATION, WASHINGTON

US PRE WWII (1920/30) “USN” 6 X 30 BRASS BINOCULARS WITH 98% BLACK FINISH, END PLATES HM’ED “6 X 30 – BUREAU OF ORDNANCE US NAVY” & “US NAVAL GUN FACTORY ANNEX OPTICAL SHOP 1091”, C/W AMBER FLIP UP SHIELDS, OPTICS ARE EXCELLENT