Stipple with very large margins. 130 x 85mm (5 x 3¼").
Leonhard Euler (1707-83), Swiss mathematician and physicist who, despite severe problems with his eyesight (shown in this portrait), made substantial contributions to the fields of geometry, calculus, trigonometry, astronomy and cartography. In Russia he supervised the creation of the 'Atlas Russicus', published 1745, and in Germany he published the 'Atlas Geographicus' in 1753. Euler has been commemorated on postage stamps issued by Russia and Germany, as well as on a Swiss banknote.
[Ref: 29783] £140.00