Roberto Matta (Chilean, 1911-2002) Pl. 9 from the album Les Oh! Tomobiles album. 1972. Etching, aquatint and roulette. The sheet: 655x507. Sabatier 313. Printed in colors. Very fine trial proof on cream vellum, annotated "essai" and signed in pencil. Slight foxing to the lower right edge of the sheet. Full margins. Final edition of 100 proofs. G. Visat ed.