Musée archéologique national de Naples
The Farnese Cup or Tazza Farnese is a 2nd-century BC cameo hardstone carving bowl or cup made in Hellenistic Egypt in four-layered sardonyx agate, now in the Naples National Archaeological Museum It is a 20 cm wide and similar in form to a Greek phiale or Roman patera, with no foot. It features relief carvings on both its exterior and interior surfaces and is around twenty centimeters in diameter.