Léon VASSEUR (1844-1917). Signed autograph musical manuscript, La Famille Trouillat, [1874 ?] ; 236 pages oblong in-fol. Enclosed is a manuscript of George Street, Mignonnette, [operetta in 3 acts, 1896], orchestral score by a copyist with some passages arranged by Henri Casadesus (335 p. in-fol ., bound). Orchestral score of this operetta in 3 acts, libretto by Hector Crémieux and Ernest Blum, music by Léon Vasseur, first performed on September 10, 1874, at the Théâtre de la Renaissance. The composer signed at the end of Act I.