10x8 Biography signed in black ballpoint ink by Lt. Colonel John Bolt. Folding crease, otherwise, in good condition. (1921–2004)John Franklin Bolt was a naval aviator in the United States Marine Corps and a decorated flying ace who served during World War II and the Korean War. He remains the only U.S. Marine to achieve ace status in two wars and was also the only Marine jet fighter ace. He rose to the rank of lieutenant colonel during his military career.Comes with a full Letter of Authenticity from Todd Mueller Authentics.