Cachet depicts Otto Hahn's equipment and the nuclear fission of uranium atoms. Stamp shows Hahn's diagram of the splitting of the uranium nucleus. Hahn was the Nobel Prize Winner for Chemistry in 1944.
Cachet and stamp depict Max Planck, while the postmark is of Otto Lilienthal, who pioneered the use of gliders. Stamp is part of series, "Men from the History of Berlin."
- after 1950 – before 1995
Stamp depicts profile of Fritz Haber who received the Nobel Prize in Chemistry in 1918 for developing a process to synthesize ammonia from nitrogen and hydrogen gas, which allowed for the large-scale synthesis of…