In Two Blacks is a mixed lithograph realized by Antoni Tapies for the Art Magazine Derrière Le Miroir, no. 175 Printed by Ateliers de Maeght, Paris, 1968. Very good conditions except for a light fold in the center which is common to the whole edition. This piece is attributed to the mentioned designer/maker. It has no attribution mark and no official proof of authenticity, however it is well documented in design history. I take full responsibility for any authenticity issues arising from misattribution