Swiss physician, medical researcher, and winner of the Nobel Prize (1841-1917) for his work in the physiology, pathology, and surgery of the thyroid. AQS, in German, on the reverse of one of his 4 x 2.75 personal calling cards. Kocher writes: “Do your duty as God and not man!,” signing underneath. In fine condition, with two tiny pinholes to left edge. RRAuction COA.
