50-0 BC., contemporary imitation, Roman Republic, anonymous Semis, Spanish mint, cf. Crawford 056/3.

Roman Republic, anonymous, inofficial mint in Hispania, ca. 50-0 BC.,
imitative Semis (15-17 mm / 1,70 g), bronze, axes irregular alignment ↑<- (ca. 270°),
Obv.: Ƨ , laurete head left ("head of Saturn"), retrograde S behind (for "Semis").
Rev.: S / ...M.. , prow left, S above (for "Semis"), legend attempt (for "ROMA") below?.
cf. http://esty.ancients.info/imit/0257.jpg , http://esty.ancients.info/imit/imitationrepAE.html ; for prototype cf. Crawford 056/3 .