Phenomena Sound of Stone. 1974.
Watercolor.
Signed lower right. Once more signed, dated and titled on verso. On firm paper by Arches (with blindstamp). 76,5 x 55,5 cm (30,1 x 21,8 in), the full sheet. [KH].

EXHIBITION: Palais des Beaux-Arts, Charleroi (with label on vers).