Roman Republic Struck Coinage L. Saufeius 152 BC, AE As 25.36 g. 

Laureate head of Janus, mark of value I above.
Prow right, L SAVF and crescent above, I to right, ROMA below. 

Babelon Saufeia 2. Sydenham 385. Crawford 204/2: Sear 720.

With permission of Numismatica Ars Classica - Auction 61, Lot 871, Oct. 2011.
Ex Kölner Münzkabinett sale 33, 1982, 118.