Louis François Dauprat : 20 Duos for 2 natural Horns in different keys op.14, with thematic table etc., dedicated to Mr. Auguste Doublat (?), amateur. Edited by Schonenberger c1850 (reprint of Zetter’s plate from c1825, probably first edition). Stamp of the editor and of the music store Pugno et Benacci-Peschier (1850). Inscription by Karl Siegler, composer, to horn player Franz Nauber, Vienna 1930. Quite exceptional ! Complete score.