Autograph letter signed from Beethoven to C.F. Peters containing two autograph canons, “Sankt Petrus war ein Fels” and “Bernardus war ein Sankt.” WoO 175. 2 leaves, quarto, integral autograph address panel, traces of seal, [Vienna, ca. feb. 1820]. Tipped into a loose bifolium containing a pencil transcription of the letter in an unidentified hand, a laid-down 2-p. autograph letter to John Elley A.W. Thayer dated London, 8 March 1861.