Werner Ruhnau - Hommage to Yves Klein (Zero Art)

A rare and striking conceptual art object by Werner Ruhnau, paying tribute to the pioneering spirit of Yves Klein and the ZERO movement. Encased in a clear plexiglass cube, a single vivid International Klein Blue (IKB) sponge appears suspended in space — minimal, meditative, and charged with presence.

Ruhnau (1922–2015), a German architect and artist, was known for his interdisciplinary works blending architecture, space and art. His collaboration and shared ideology with Yves Klein and other ZERO artists is clearly reflected in this minimalist object.

• Artist: Werner Ruhnau

• Title: Hommage to Yves Klein

• Movement: ZERO / Conceptual Art

• Medium: Blue sponge, mirror, plexiglass cube

• Signed: Yes (sticker signature)

• Provenance: Private collection, Germany

• Condition: Excellent

• Dimensions: Approx. 35 x 25 x 15

This iconic piece captures the essence of space, void, and pure color, hallmarks of the ZERO aesthetic. A collector’s gem.