Very clean, ready to play, original case, C Key. Large size 7 X 1 1/4 X 1 3/4 inches. The Hohner Chromonica 280/64 was the model played by Stevie Wonder. Marked "The 64 Chromonica, 4 chromatic octaves, Professional Model, Made in Germany, M. Hohner". It has 16 holes, a 4 octaves range starting 1 octave below the middle C key and a chrome and plastic wood finish. Used for R&B, Jazz and classical performances. Special wind-saving valves.