Anoniem (1600)

That's odd ... it's a glass, a wine glass in fact, but it is upside down - the glass has no foot. Instead, it has a decorative silver sphere containing a silver die. This type of glass is known as a wager cup. When filled with wine it can only be put down once the contents have been drunk: the glass cannot stand upright. This particular wager cup is known as a dice glass. It is a product of seventeenth-century Dutch workmanship in the Venetian style.    rijksmuseum.nl