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Piero Manzoni:
Achrome, 1961



Piero Manzoni
1961



Piero Manzoni:
Achrome, 1961-1962



Piero Manzoni:
Achrome, 1961-1962



Henk Peeters:
White Feathers, 1962



Yannis Kounellis:
Carboniera, 1967



Robert Morris:
Untitled (Threadwaste), 1968



Robert Morris:
Threadwaste with Mirror, 1968