Autograph letter signed from Beethoven to Nikolaus Zmeskall von Domanovecz, no place or date [inscribed “28 febr. [1]812” in another hand], regarding the opening of the oepra house at Pest. 1 p., 17.5 x 24 cm., without an opening salutation, inscribed on verso (”été donné par mr.le.cte Maurice de Dietrichstein à Vienne, avril 1834”)