Ancients. ROMAN EMPIRE: Augustus, 27 BC-14 AD, AE sestertius (20.01g), circa 25 BC, cf. RIC-501, bare head of Augustus right // CA within rostral wreath, possibly struck at Pergamum in Asia, Fine to VF, R. It has been suggested that CA stands for Communitas Asiae, referring to the stabilization in Asia after the defeat of Antony & Cleopatra.