In 2009 the Beethoven Haus in Bonn was able to acquire Beethoven’s working manuscript of his last great piano work. The spectacular acquisition was made possible thanks to an unprecedented joint effort between renowned artists and numerous public and private backers. The facsimile edition now makes this important autograph score, which was previously privately owned, accessible to all interested parties for the first time. The autograph served as engraver’s model for the original edition published in 1823. The second volume of the facsimile contains a reproduction of the original edition in which Beethoven included a handwritten dedication. Thus two authentic sources are available for direct comparison.