BEETHOVEN Ludwig van (1770-1827). Messa a quattro Voci coll' accompagnamento dell' Orchestra... Drey Hymnen für vier Singstimmen mit Begleitung des Orchesters... 86s Werk (Leipzig, Breitkopf & Härtel, [1812]); one oblong volume in fol. (26.5 x 35 cm) of 107-[1] pages, original cover on blue-grey paper (the top cover printed Messe von L. v. Beethoven, with price ms), under old cardboard (small marginal tears repaired p. 71-74, marginal ink stain from p. 59 onwards, a few tiny holes, marginal slit on p. 106; stamps of possession; used cardboard and used spine). Rare first edition of the Mass in C, the first of Beethoven 's two Masses . Engraved edition, each plate bearing the quotation no. 1667. Hoboken 374]. Dedicated to Prince von Kinsky, it is divided into three parts entitled "Erster [Zweyter, Dritter] Hymnus" (pp. 3, 39 , 71). Original state of pp. 92-93 (beginning of the Agnus Dei); "Anmerkung" for p. 71 on the reverse of p. 107.