2. London, Sotheby's, 1987, lg in-8°, 27 x 21.5 cm, 70 pp, ills., many in color, stiff printed wrapper. Works by Vasarely, Calder, Fontana, Christo...
2. London, Sotheby's, 27,5 x 21 cm, ca 280 nn pp, 78 pp b/w + coloured plates, index, 1800 lots, publisher's cased binding. Nice copy.