FIRST DAY COVER FOR ALBERT EINSTEIN SIGNED BY THEORETICAL PHYSICIST JOHN A. WHEELER WHO WORKED WITH EINSTEIN. FDC postmarked March 4, 1979. Wheeler signed it with the date of July 25, 1979. He worked on nuclear fission and the A bomb, Theory of Relativity, black holes etc. with Professor Einstein at Princeton. He died in 2008 at age of 96. Very scarce autograph and a very important scientist. With the cachet of Albert Einstein. In fine condition. I found a collection of FDCs that were signed by celebrities very recently from a private estate. First time offered for sale anywhere by me. Free shipping in the U.S.