The portrait of the mathematician Leonhard Euler after a painting by Emanuel Handmann from 1753. To left: the representation of the ideal profile of a gear wheel. Below: diagrams that Euler used to represent logical inferences. On the left: in the text field, a relief point as Blind code.
Reverse description
Representation of the water turbine designed by Euler. On the right side: the diagram of the path of a beam through a system of lenses. Below: a schematic of the solar system, made up `Letters to a German Princess`.
Signature(s)
Edmund Wyss, Leo Schürmann, Pierre Languetin, Fritz Leutwiler, Pierre Languetin, Markus Lusser, Pierre Languetin, Markus Lusser, Hans Meyer, François Schaller, Peter Gerber, Markus Lusser, Jean Zwahlen, Hans Meyer,
Protection type
Watermark
Protection description
Portrait of Leonard Euler.
Obverse lettering
SCHWEIZERISCHE NATIONALBANK
BANCA NAZIUNALA SVIZRA
10
Leonard Euler
1707-1783
Zehn Franken
Diesch Francs
10 (Translation: Swiss National Bank, Ten Francs)