Prolific Italian composer in all forms, best known for his operas (1797–1848). Unsigned autograph musical manuscript, one page both sides, 12.25 x 4.75, no date. Donizetti pens 56 bars of music from his opera Il Castello di Kenilworth, identified at the top in an unknown hand. In very good condition, with a heavy central vertical fold, scattered ink marks and soiling, and trimmed bottom edge. This opera was first performed on July 6, 1829, at the Teatro San Carlo, Naples. RR Auction COA.