[ Autographs ] JOHN F. KENNEDY (1917 - 1963) Thirty-fifth President of the United States. Kennedy faced down Kruschev during the Cuban Missile Crisis, re-invigorated NASA, and signed the Nuclear Test Ban Treaty. Assassinated. Exceedingly rare and quite cryptic A.L.S. "J.K."as President on two separate sheets of White House stationery, 2pp. 8vo., Washington, [n.d.]. In full: "Dear Evangeline: As far as I know you have been splendid. But of course - you know better than J[ackie?]! Affec[tionatly]. J.K." Very light folds, otherwise very good. Kennedy's A.L.S.'s are rare, especially those with content as President! Our last such Kennedy letter as President sold for in excess of