'Gusher' was the first machine to have a disappearing jet bumper.
The manufacturer�s original playfield drawing (not shown here) is dated 9/11/57, revised 10/24/57, and has the signed initials HEW. The manufacturer�s Tool Room copy of this drawing (also not shown here) is dated 4/3/58.
Harry Williams is the designer of this game. In this listing we show a partial image of a blueprint copy of the original Tool Room copy of the manufacturer's original playfield drawing. This image shows that Harry Mabs had an engineering-manager role in this design, but that does not have to mean that he designed it.
