Autograph sketchleaf for the Piano Sonata in A-flat major, Opus 110 containing a passage for the second movement in the Trio section in D flat major, no date [Vienna, probably around late 1821]. 2 p. (ca. 9.5 x 31 cm.), on a 4-stave strip cut from a larger leaf, notated in pencil on two systems per page, the staves extended into the margins, with deletions, cues and alterations, comprising about 23 bars of music in all, without dynamics or tempo markings.