Heinz Mack, Otto Piene, and Günther Uecker, “Lichtraum (Hommage à Fontana)” (1964)

Heinz Mack, Otto Piene, and Günther Uecker, “Lichtraum (Hommage à Fontana)” (1964),
as installed at the third Documenta in Kassel, 1964

Courtesy of the website of the ZERO Foundation, Düsseldorf

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