Physicist awarded the 1939 Nobel Prize for his invention of the cyclotron. Fountain pen signature and inscription, “To Dr. Adolphe Leicttle, With all good wishes, Ernest Lawrence, Berkeley, Calif,” on an off-white 5.5 x 3.5 card, dated April 7, 1962. In fine condition, with small photo and German caption affixed to card. R&R COA.
