L. Sempronius Pitio. AD 148, AE As. 22.59 g. 

Laureate head of Janus; mark of value "I" between PI–TIO above. 
L·SEMP, Prow right, I to right, ROMA below. 

Babelon Sempronia 3. Sydenham 403. Crawford 216/2a. 

With permission of Numismatica Ars Classica - Auction 72, Lot 1102, May 2013.
The JD collection of Roman Republican Coins part II – session II
Ex Gorny and Mosch sale 176, 2009, 1796.