Austrian theoretical physicist (1887-1961) who achieved fame for his contributions to quantum mechanics, especially the Schrödinger equation, for which he received the Nobel Prize in 1933. ANS, one page both sides, 3.5 x 2.25, April 18, 1947. Short note to a young collector. In part: “I do not think much of autograph-collecting, but your tender age has won me over.” In fine, clean condition. RRAuction COA.