Switzerland 2007 Roger Federer, Tennis World Champion 100c

SG1720

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Swiss Post has presented the special Roger Federer stamp to the public. Chief Executive Officer Ulrich Gygi presented the tennis player from the Basel region with his special present at Basel town hall. This is the first time ever that a living person has been depicted on a Swiss stamp. The stamp, with a face value of one franc, is available now.

Swiss Post has lifted the secret surrounding the Roger Federer special stamp. Chief Executive Officer Ulrich Gygi unveiled the picture at Basel town hall and presented Roger Federer with a large-format stamp. The 1-franc stamp shows the world's number one tennis player holding up the winner's trophy at Wimbledon.

Swiss Post's special stamp is a unique gift to Roger Federer. It is the first time that it has issued a stamp featuring a living person. Roger Federer has been the number one in the tennis world for over three years longer than any other player. With his sporting successes and his activities off the court as UNICEF ambassador, for example he has done a great deal to promote the image of Switzerland abroad in recent years. This is why Swiss Post is dedicating a stamp to this exceptional sportsman.

Swiss Post announced on 26 February 2007 that it would be issuing a Roger Federer stamp. However, the actual picture to be featured remained a secret until it was presented to the tennis player. 

SWISS 2007 STAMPS FOR SALE

2007 300th Birth Anniversary of Leonhard Euler (mathematician)

 

SG1719  Issued 6.3.2007

On March 6, 2007 Switzerland issued a stamp to commemorate the 300th Anniversary of the birth of Leonhard Euler (1707-1783). Stamp design based on a portrait. The pastel likeness on which the Euler special stamp is based was created in 1753 in Berlin by the talented Swiss portrait artist Emanuel Handmann (1718-1781) and shows the great scientist – Euler had already lost the sight of his right eye – in a remarkably spontaneous mood, dressed in a silk housecoat. The image of a polyhedral body at which Euler seems to be looking and the equation “e – k + f = 2” (in English, V [ertices] - [Edges] + F [aces] = 2) recall one of his best-known discoveries in elementary mathematics, Euler’s polyhedral formula (in our example, V = 12, E = 19 and F = 9). In a letter to his friend Christian Goldbach dated 14 November 1750, Euler first refers to the fact that the relationship between the number of edges, vertices and faces of a body – more specifically a convex polyhedron – is always the same, describing it as “H + S = A + 2”. Several years later, he published and proved this relationship in the journal of the St. Petersburg Academy. This was one of the first general statements about those characteristics of geometrical shapes which are independent of relative proportions so do not vary, even when deformed. Euler thus founded a new branch of mathematics known as “combinatorial topology”. Like several of Euler’s discoveries, the polyhedron formula is one of the best known mathematical theorems ever. This small indication of what the impressive mind of man in the portrait produced is intended as a contribution to perpetuating the memory of this great scholar born 300 years ago in Basel. Martin Mattmuller, Euler Archive, Basel.

Swiss 2007 issues available for sale