Michael Idvorsky Pupin, Hungarian-American physicist, c 1920.

Etching of Michael Idvorsky Pupin (1858-1935). Born in Idvor, Hungary (now in Yogoslavia), Pupin moved to the United States in 1874, studied at Columbia University and from 1901-31 was Profesor of Electromechanics there. He is famous for his research on X-rays and for his invention of numerous electrical devices used in telegraphy and telephony, including the fluoroscope and the Pupin inductance coil. His autobiography 'From Immigrant to Inventor' (1923) won the Pulitzer Prize. Published by the International Telecommunication Union (1955-1964). Dimensions (overall): 230mm x 190mm.