Autograph sketchleaf for Fidelio containing material for the Trio “Gut, Söhnchen, gut” ... no plate or date [ca. 1804]. 2 pp. 11.5 x 24.5 cm. cut from a larger sheet, notated in brown ink on up to eight staves, with many revisions, smudgings and alterations, a little light staining at the edges, otherwise in good condi