A genuine USAF/USN Vietnam War era Life Preserver, Underarm Pneumatic, Type MA-2, P/N 5513629. This life preserver was used by the U.S. Air Force and U.S. Navy during the late 1950's and 1960's and was made by the Switlik Parachute Company USA. The preserver consists of two pneumatic pouches connected by webbing and a Davis buckle (Davis Aircraft Products Inc USA), it's in very good condition for its age and retains the original release pins along with the manufactures label.