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Item no. 43 (stamp)
Type: stamp
Country: Czechoslovakia
Date of issue: 6 July 1987
Catalog number: Michel 2918 – 2920, Scott 2663 – 2665
Stamps honoring mathematicians and physicists. A 3-stamp set. The stamp no. 2920 (Scott 2664) shows three mathematicians; the first from the left is Josef Petzval (1807 – 1891), inventor of the first portrait lens.
The other stamps not relevant to photography.
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- Monday 27 May 2013
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