Octavian AR Denarius. Gaul, 42 BC. 

Obv: CAESAR III VIR R P C, helmeted draped bust of Mars 
right, spear over shoulder
Rev: SC, Aquila, surmounted by trophy and flanked by 
two standards.

Syd 1320, Cr497/3.  RARE

Courtesy of Roma Numismatics, May, 2010