Lightning - The latest and top of the line 1847 model is the Lightning, made of steel including the comb. Aside from the luxury components and extra attention to every detail the biggest feature is the use of polished steel reeds. The polishing process adds to the quality of the sound and the longevity of the reeds, removing any future spots for reed failure. The comb being made of steel makes this model heftier to hold. The quality of the finish including the highly buffed mouth holes make it extremely comfortable to hold and to play.