Arthur-Luiz Piza (Brazilian, 1928–2017) A set of 2 prints: - *Le Rouge d’en haut*. Circa 1990. Gouge and drypoint engraving. 215 x 265 mm. Color print. Perfect proof on white vellum, numbered and signed in pencil. Full margins. Edition of 99 proofs. Dry stamp: Jacqueline de Champvallins Paris. -*Le Triangle bleu*. Circa 1990. Gouge and drypoint engraving. 260 x 335 mm. Color print. Fine proof on white vellum. Long crease running through the subject. Traces of oxidation at the top of both the front and back, likely caused by a clip. Full margins. Provenance: Jacqueline de Champvallins (1923–2006), gallery owner and print publisher.