OFFENBACH, Jacques (1819-1880). Autograph music manuscript, n.d., a generous series of unidentified sketches, in both orientations, occasionally with indications of key ('es dur'), orchestration ('cuivre ... cordes', 'Trompetti') or tempo, the manuscript opening with an abandoned draft in full score of an unidentified work ('Introduction'), in ink and pencil on 5 leaves, 4to (340 x 272mm), loosely stitched.