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. March WM: None Sheetsize: 20 Design: Angelo Boog Engraving: Cartor Security Printing. Perforation: 13¼ x 13½
![[The 300th Anniversary of the Birth of Leonhard Euler, type BYP]](https://www.stampworld.com/media/catalogue/Switzerland/Postage-stamps/BYP-s.jpg)
