This dish is an example of the fine tin-glazed lustreware pottery produced in late medieval Spain and exported all over Europe. The dish is decorated with an underglaze blue pattern of byrony flowers and parsley leaves combined with spindle forms in lustre-glaze. This decoration demonstrates the continuing influence of Islamic art on newly unified Christian Spain. The central field of the dish bears the sacred IHS monogram – the first three letters of the Greek name of Jesus. This monogram became a common devotional symbol in the fifteenth century as a result of the preaching of Saint Bernardino of Siena (1380–1444).