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Hermann Staudinger
(1953 Chemistry)
Next:
Hermann von Helmholtz
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diagram of eye
Hermann von Helmholtz
Short desc: Hermann von Helmholtz
Things in this design:
person
Hermann von Helmholtz
This design is used by 1 stamp:
Berlin 8/27/1971 25pf bl&multi issue=Hermann von Helmholtz 150th
