Made in Paris, Circa 1955 - AKA Semi Rational. With very few manufactured, this model remains quite rare. Original throughout and ready for an overhaul either by us or by a tech of your choice.. The original case is included. The regular fingerings of the sax can be used, but the key work "system" allows for extra fingerings. When the second finger of the right hand is depressed,it lowers all the notes in the upper stack of instrument by one half step.