Roman Republic. L. Sempronius Pitio, AE Triens, 148 BC, 8.25 g. 

Helmeted head of Minerva right, wearing crested Corinthian helmet, four dots above. 
L SEMP (MP ligate) above prow right, four dots to right, ROMA below. 

Babelon Sempronia 6; Sydenham 403b; Crawford 216/4a; BMCRR Rome  721; Cohen Republican 148/3.

With permission of Numismatica Ars Classica auction 61, Lot 925, Oct. 2011.