Léon DELAFOSSE (1874-1951). Autograph musical manuscript signed, Jeux de Terpsichore, 1932; title and 16 fol. pages, bound in ivory half vellum with side bands, gilt title on upper cover. Diptych for piano: - Sortie-Impromptu, in A major 3/4, Animé, signed at the end and dated August 27, 1932 (6 p.). - Saltarelle, in D major at 6/8, Animé, signed at the end and dated June 9, 1932 (10 p.). The manuscript, in blue-black ink on 12-line paper, was used for the engraving of the 1932 edition by Adolphe Henn in Geneva. The work is dedicated on the title page to Albert Blondel (1849-1935), piano maker and director of the Maison Érard and Salle Érard.