Printed note signed in ink “A. Einstein, 55,” one page, 5 x 3.25, 1955. A note of thanks. In full: “May I send you my warm thanks for your gracious message of congratulation on the occasion of my birthday. It was most thoughtful of you to remember me.” Einstein celebrated his 76th and final birthday on March 14, 1955; he died a month later, on April 18. A few tiny surface marks at extreme edges, otherwise very fine, clean condition. Auction LOA John Reznikoff/PSA/DNA and R&R COA.