Moulds can be used in two basically different ways in glassmaking:
[*]To be able to make identical pieces. By mouth or machine blowing.
[*]As tools to aid in the shaping of handblown glass.
All Monart and Vasart was free-formed. Dip-moulds were used to create variation in enamels marvered onto the glass. These resulted in striped decoration, twisting and rdipping resulted in contra direction striping. Other formers were also used, for example a spoked cartwheel type device - the open end of the shaped vase being pushed down on the spokes to create a waved edge effect.