The 300th Anniversary of the Birth of Leonhard Euler 2007
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2007
The 300th Anniversary of the Birth of Leonhard Euler
6. mars WM: Inga storlek på arket: 20 Design: Angelo Boog Gravyr: Cartor Security Printing. Perforering: 13¼ x 13½
![[The 300th Anniversary of the Birth of Leonhard Euler, Typ BYP]](https://www.stampworld.com/media/catalogue/Switzerland/Postage-stamps/BYP-s.jpg)
