Hohner 530/20 C Official Scout Harmonica 530/20 C Official Scout Harmonica Recognized by the Boy Scouts of America as an official scouting accessory, rich tone, plastic body, 10 single holes and 20 reeds Key of C Recognized by the Boy Scouts of America as an official scouting accessory, rich tone, plastic body, 10 single holes and 20 reeds Key of C