Harold Cohen
untitled
1985

Harold Cohen
untitled
1986

Harold Cohen
untitled
1986

Harold Cohen
untitled
1987

Harold Cohen
untitled
1987

Harold Cohen
untitled
1987

Harold Cohen
untitled
without year

Jack Citron
untitled

José Luis Alexanco
untitled

Marc Adrian
untitled

William Alan Fetter
untitled

Ivan L. Finkle
untitled

Herbert W. Franke
untitled

William Alan Fetter
untitled

Kurd Alsleben / Cord Passow
untitled
1960

William Alan Fetter
untitled

Otto Beckmann / Alfred Graßl
untitled
1969

Manuel Barbadillo
untitled

Manuel Barbadillo
untitled

Herbert W. Franke
untitled

Josef Albers
unttilted01

Josef Albers
unttlited02

Max Bill
verdichtung zu caput mortuum

Herman de Vries
zufallszeichnungen
1972-74