Hohner Progressive Series Special 20 Harmonica - DHohner 560 D Special 20 Harmonica DHohner 560 D Special 20 Harmonica in Dcrafted with recessed reed plates and a durable plastic comb for comfortable play. Experience rich, warm tones with its unique cover plate design. Perfect for musicians seeking reliable performance. The Worlds Most Copied Harmonica DesignA unique, beautifully mellow sound, based on a revolutionary concept: the Special 20 was the first diatonic harmonica in the world with reed