Germany, 200 Mark, 1989, AUNC, p42
serial number: AA 4379712Y2, German biochemist Paul Ehrlich (1854–1915) developed a chemical theory to explain the body's immune response and did important work in chemotherapy, coining the term magic bullet. Ehrlich received the Nobel Prize in Physiology or Medicine in 1908 Paul Ehrlich portrait, "AA" FIRST PREFİX