Nobel Prize–winning, Italian-born engineer (1874–1937) whose development of “wireless telegraphy,” better known to the world at large as radio, would come to exert a profound and immeasurable influence not only on communications, but on modern civilization itself. Superb ink signature, “Yours very truly, Guglielmo Marconi,” on an off-white 4.25 x 2.75 card. In fine condition, with a hint of subtle edge toning and mounting remnants to reverse. RRAuction COA.
