Pyx; Spain, 16th-17th century.Gilded copper.The hinges have been restored.It has a lead soldered cross from a later period.Measurements: 14 x 10 cm.The pyx or hostiary is the receptacle used to hold the Sacred Form. It is a typological novelty that emerged at the end of the Romanesque period in Limoges, a producer of enamelled silverware. It has its origins in the Greek pyx, a small lidded box that was often used to store jewellery or beauty products. The first hostiariums took the form of a cylindrical box with a conical lid, hinged or linked by a chain. Even in these early examples from Limoges, it was common for the lid to end in a cross, although this has rarely been preserved. During the Gothic period, the same structure was maintained, although it could appear with or without a clasp and hinge. Likewise, in the Gothic period, the size of the host was reduced, which indicates a change in its function. It is no longer used during mass, as this function is covered by the ciborium, but is used to give communion to the sick in their homes. The finishing cross, now essential for all Eucharistic pieces, is still retained.