OFFENBACH Jacques (1819-1880). MANUSCRIT MUSICAL autograph; 2 pages in-fol . Musical sketches on the two pages of a 20-line fragment of orchestral score (paginated 23-24) on which only one instrumental voice (24 bars) appears; on the turned over page, Offenbach noted several themes and sketches, notably for an "Ouverture" and a "Rococo air". The page is certified at the top in pencil by Pierre Cornuau.