[EINSTEIN] -- Joseph Herman HERTZ (1872-1946). A one-page autograph letter in English, signed, on paper headed Office Of The Chief Rabbi, 4, St. James's Place, Aldgate, London EC3, dated 12 March 5689 [1929], to Albert Einstein, congratulating him on his 50th birthday, and praising Einstein's loyal allegiance to the ideals of Israel and his faith in its eternity.