ROBERTO SEBASTIAN MATTA, © by SIAE (Santiago de Chile 1911 - Civitavecchia 2002) Mots desserre-freins, 1972 Etching and aquatint in colour on Japon paper plate 22,9x16 cm sheet 32.5x24.5 cm published by Editions Georges Visat in Paris Signature lower right Circulation lower left, ex. 70/100 Flaws: Slight yellowing of the paper at the upper and lower margins of the sheet due to previous framing