Four basic kinds of straight lines

- Very rare artist book

London, Studio International, 1969.

Pap., stapled, 20 x 20 cms, unpaginated, illustrations in bl/w.

Please note that this is the original bl/w version; a colour version was published two years later by Lisson Gallery. Exceedingly rare.

Maffei pp. 32-33; Printed Matter 137.

- Some very slight traces of wear to cover, small spot on back, overall in very good conditon