Lithography; 115 signed and numbered copies; Number: P.A. and R.R.; paper: Piggy; Plate size: 28 x 37 cm.; Artwork size: 57 x 77 cm.; Lithograph in two grays, black and white serigraphed. The edition is 115 copies; It consists of 100 copies signed and numbered 1 / 100-100 / 100, and 15 copies H.C. signed and numbered I / XV-XV / XV. Editor: La Polígrafa, Barcelona. Cataloging number: 242. Listed on page 149 of Tàpies. Graphic work. 1947-1972. Editorial Gustavo Gili. 1973.