Much, in Valencia most, of the pottery was clearly made for a Christian market, as it includes coats of arms and other Western elements in the decoration. As well as the Christian IHS monogram in the centre, the naturalistic vine-leaf decoration of the dish shown at top is derived from Gothic art, probably via the border decoration of illuminated manuscripts. No pieces have yet been found that are signed (as many pieces from other Islamic regions are), and hardly any dated, so heraldry, especially when pieces are assumed to have been commissioned to celebrate a wedding, is important evidence for dating. The pieces "had to be spectacular and elegant, yet every category of vessel had a particular use" and on grand occasions all might be used, even though the largest platters spent most of the time on display propped up vertically on sideboards, as is shown in some contemporary paintings.