ObverseThe Portrait of Max Planck
MAX PLANCK 1858-1947
- Design
- The portrait of Max Planck, in profile.
- Legend
- MAX PLANCK 1858-1947.
KREngraved by Karl Roth
Tribute to Max Planck (2 mark, 1957-1971)
This 2 Deutsche Mark coin in cupronickel, 75% copper and 25% nickel, pays tribute to the physicist Max Planck (1858-1947). On 14 December 1900, Planck presented to the German Physical Society in Berlin the hypothesis of energy quanta, regarded as the birth of quantum theory. He received the Nobel Prize in Physics for 1918 for this discovery. The portrait is the work of Karl Roth, who also engraved the federal eagle on the other side. The type was struck from 1957 to 1971. The 1963 date has 3,752,000 pieces in Stuttgart. The coin ceased to be legal tender on 1 August 1973.
Actual size compared with the 2 € and 1 € coins. Thickness: 1.79 mm.
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