ELD4867220 Portrait of Guglielmo Marconi (1874-1937), Italian physicist, inventor of the telegraph (Portrait of Guglielmo Marconi, Italian inventor and electrical engineer, known for his pioneering work on long distance radio transmission and for his development of Marconi\'s law and a radio telegraph system) llustration by Tancredi Scarpelli (1866-1937) from ??????Storia d\' Italia??????(History of Italy) by Paolo Giudici, 1930 Private Collection by Scarpelli, Tancredi (1866-1937); (add.info.: Portrait of Guglielmo Marconi (1874-1937), Italian physicist, inventor of the telegraph (Portrait of Guglielmo Marconi, Italian inventor and electrical engineer, known for his pioneering work on long distance radio transmission and for his development of Marconi\'s law and a radio telegraph system) llustration by Tancredi Scarpelli (1866-1937) from ??????Storia d\' Italia??????(History of Italy) by Paolo Giudici, 1930 Private Collection); Photo 穢 The Holbarn Archive.