Early autograph sketchleaf for the Octet for two oboes, two clarinets, two horns, and two bassoons, op. 103, and for the Piano Trio op. 1, no. 3, and for several other unidentified works. 2 p., oblong quarto (ca. 23 x 30 cm.), 16-stave paper, watermarked "PS," written in brown ink on 16 staves per page mainly on 2-stave systems, containing several distinct passages, including a version of the main theme of the Finale of the Piano Trio op. 1, no. 3 with, on the verso, a composing draft of the conclusion of the Wind Octet Op. 103, a passage of some forty-four bars extending over ten staves, the lower half of the page also containing a series of intensively-worked sketches for an unidentified work, with revisions, deletions and alterations, the manuscript annotated by the composer with various titles and references ("Seite 1000;" "Mineur;" "h moll," "c moll," "3mal," "imitation") and performance markings ("3mal," "tremolo;" "cres").