Patera

A patera was a broad, shallow dish used for drinking, or a chalice used primarily in a ritual context such as a libation. These paterae were often used in Rome.

Paterae are often depicted on Roman Imperial coins where Salus is holding a patera from which she feeds a snake.

In architecture, Oval paterae are also used as features on plaster friezes on buildings.

Paterae were not confined to Roman practice. See the magnificent specimen from the Vergina (Aigi) tomb of Philip II of Macedon, 4th century BCE