Romain de Tirtoff ERTE Set of two works on paper 1.costume study Gouache on paper Signed lower right "Erté 36.50 x 26 cm - 14 ⅜ x 10 ¼ in. 2.The Serpents, set for "the prologue" - 1928 Gouache on paper Signed and stamped lower right "Erté", dated and annotated on the back "N°1.351./ "Les Serpents". / For the Prologue of G. W.S. 1928/ V-1928". Sheet: 27.50 x 37.50 cm - 10 ⅞ x 14 ¾ in. Composition : 17 x 24 cm - 6 ¾ x 9 ½ in. Provenance: Christophe Czwiklitzer Collection To the present owners by succession Set of two works on paper ; gouache on paper, signed lower right ; gouache on paper, signed and studio stamp lower right, dated and annotated on the reverse Romain de Tirtoff ERTE