<p>COLOURED GLASS ARTICLES A method for producing a coloured design on toughened glass comprises producing a water-slide transfer of the design in coloured vitreous enamel. The water slide transfer is applied to a glass panel allowed to dry and then passed through a heat treatment cycle in which the glass panel is heated to 620-670.degree.C to fuse the enamels to the glass and rapidly cooled to toughen the glass.</p>
