Ivan Pavlov, USSR
A USSR stamp, Nobel Prize Winners in Physiology or Medicine
Date of issue: 14th May 1991. Designer: Yury Artsimenev. Michel catalogue numbers: 6197-6199.
Ivan Pavlov, USSR
Ivan Pavlov, USSR
A USSR stamp, Nobel Prize Winners in Physiology or Medicine
Date of issue: 14th May 1991. Designer: Yury Artsimenev. Michel catalogue numbers: 6197-6199.