This is a genuine 1959-1961 Jaguar MKIX MK9 Mark 9 LH Left Driver Front Vent Wing Window that is made from tempered glass. The glass tint is green and it weighs 6#. The mounting style is glass run channel and it is a vintage part that is not a performance part. It is not a universal fitment and it is placed on the rear left side of the vehicle. The part is in good condition and can be a great addition to your vintage Jaguar car.