SITUACION UNO poesia n.o.
Madrid: grupo n.o. / Edición de los autores, 1969. First edition. 17.8 x 20 cm (7 x 7.9") green paper envelope printed in red and black, containing sixteen 17.4 x 19.1 cm (6.9 x 7.5") loose plates printed on recto sides only. Fifteen plates printed in black, and one printed.....