This is a United States Air Force Vietnam Pilot's or Paratroopers automatic knife by Schrade Walden. The piece shows a wood grained bright orange grips and stainless steel blade. The knife needs only one had to operate with a spring assisted push button mechanism with lock. The piece also includes a hook knife used to cut the parachute cords in the event of being stuck upon emergency landing. This would have been sewn into the collar of the pilot or paratroopers jump jacket and easily removed for assistance when a landing has been compromised. The knife is in very good condition. Knife closed is 4.25”L, open is 7 3/8”L and has a 1 7/8”L hook.