Depicts Wilhelm Conrad Röntgen, awarded the first Nobel Prize in Physics for the discovery of X-rays, along with an X-ray tube and an atom.
Cachet depicts a light beam passing through a prism to create a spectrum. Stamp depicts colors of the spectrum. The 15th Colloquium Spectroscopicum Internationale was held May 26-30, 1969 in Madrid, Spain.
Stamp printed by the Republic of Cuba, depicting Marie and Pierre Curie. The 40th anniversary of the discovery of radium by Marie and Pierre Curie was commemorated in France in 1938 with the release of a semipostal…
- Artist La Nézière, Joseph de
- Engraver Piel, Jules
- Subject Women in science, Curie, Marie, 1867-1934, Women physicists, Cuba, Women in physics, Women scientists, Chemists, International Union against Cancer, Women chemists, Curie, Pierre, 1859-1906, Science on postage stamps, Nobel Prize winners, Women in chemistry, Physicists, Postage stamps, Commemorative postage stamps
Peruvian postage stamp commemorating the centenary of the birth of Daniel Alcides Carrión García (1857-1885), a Peruvian medical student after whom Carrion's disease is named. The stamp depicts Saint Martin de Porres…
- Cuban postage stamp promoting The World United Against Malaria campaign
Cuban postage stamp printed to promote world anti-malaria campaign. Depicts a chinchona plant and chemical formulas for chloroquine and primaquine, medications used to treat malaria.