US Senator who was assassinated while campaigning in California in 1968; brother of President John F. Kennedy. TLS signed 'Bob,' twice with handwritten postscript, one page, 8.5 x 11, personal letterhead, December 3, 1964. In part: I just wanted you to now how much I appreciated your letter. It was very thoughtful of you and I am grateful for your good wishes. With many thanks and kind regards.' He adds a personal handwritten note below: 'My thanks and my best to you - Bob.' Accompanied by an unsigned photograph of RFK. In fine condition, with staple holes to upper left, scattered light creasing affecting nothing. An unsigned photo of Kennedy accompanies the letter. RRAuction COA.