Accord Bleu (Sponge Relief)

Yves Klein (1928-1962) Accord Bleu (Sponge Relief) signed, titled, inscribed and dated 'Yves Klein Gelsenkirchen "Accord Bleu" 58' (on the reverse) dry pigment in synthetic resin, natural sponges and pebbles on board 20 3/8 x 53¾ x 3 in. (51.8 x 136.5 x 7.6 cm.) Executed in 1958.