Japanese naval officer who commanded the 11th Flotilla and who was Senior Officer on board the destroyer Amagiri on the night of the collision with PT-109. Japanese book: [The True Story of President John F. Kennedy’s PT-109 Collision]. Softcover, 5.75 x 8.25, 119 pages. Signed in black felt tip on the rear [actually front] free end page, “Capt. Katsumori Yamashiro.” Accompanied by the original mailing envelope addressed in Yamashiro’s hand. In very fine condition. R&R COA.