Portrait image of Dr. Paul Hälg
1954, Swiss
Portrait image of Hanspeter Fässler
1956, Swiss
Portrait image of Jens Breu
1972, Swiss
Portrait image of Claude Cornaz
1961, Swiss
Portrait image of Jürg Fedier
1955, Swiss
Portrait image of Martin Hirzel
1970, Swiss
Portrait image of Gabi Huber
1956, Swiss
Board of Directors
1964, Dutch
Board of Directors