Sol LeWitt, 49 three-part variations using three different kinds of cubes 1967-68

Zurich, Bruno Bischofberger, 1969. Stapled booklet, 17 x 35.5 cm, 26 pp., offset printed b/w.

Edition of 1000 numbered copies of which 500 signed. This copy signed and numbered 456 on verso of front cover. One of Lewitt's earliest artist's books. Extremely rare and in mint condition.