"Casket" reliquary in enamelled silver and rock crystal, made by Venetian or French goldsmiths in the 15th century. The reliquary is a small parallelepiped case. The reliquary is characterized by two openings closed by rock crystal lenses, which allows the faithful to see the relics inside, and it is enriched with enamels in colored glass paste applied on the silver surface, wich depict unicorns and birds on a starry background. Part of the decoration was lost due to the mud caused by the flood in 1966.