Swiss art auction in Zurich

A man looks at the installation 'Sorcerer' by late Swiss artist Jean Tinguely (1925-1991), which was sold during Sotheby's auction of 123 pieces of Swiss art, in Zurich December 7, 2009. 

An employee displays a photograph showing Ernesto "Che" Guevara taken by Swiss photographer Rene Burri, which was sold during Sotheby's auction of 123 pieces of Swiss art, in Zurich December 7, 2009.