A simpulum, or simpuvium, was a small vessel or ladle with a long handle from the Roman era, used at sacrifices to make libations, and to taste the wines and other liquors which were poured on the head of the sacrificial victims. The simpulum was the sign of Roman priesthood, and one of the insignia of the College of Pontiffs.[1]
The simpulum appears on a coin from Patras struck under Augustus. It is placed before the head of Vesta, as a mark of that goddess, on a coin of the Domitian family, and is seen in the hand of a Vestal Virgin on coins of the Julio-Claudian dynasty. A man in a toga holds a simpulum in his hand on a coin of Antonio Drusi.
^ ab'A Dictionary of Roman Coins' by Seth William Stevenson, FSA, C.Roach Smith, FSA, and Frederic W Madden, MRSA Published by George Bell & Sons, New York and Covent Garden (1889) pg 749