Hohner Chromonica 64C - chromatic harmonica with 16 round holes and slide, tuned in the key of C major. The design was awarded a US patent in 1928 and has been marketed under the name Chromonica since 1938. Plastic comb, 64 classic reeds, complete range of 4 octaves, brass plates for reeds of 1.05 mm. Delivered in a protective and transport cardboard case.