Professor Max Planck, c1928. Creator: Unknown.
Professor Max Planck, c1928. Portrait of German theoretical physicist Max Planck (1858-1947), winner of the Nobel Prize for physics, responsible for development of Quantum Theory. From "Die Welt in Bildern", (The World in Pictures), cigarette card album, c1928. [Georg A Jasmatzi, A.-G., Dresden, Germany]