Antoninus Pius AE Sestertius, 32mm; 22.72g. AD 139. 

ANTONINVS AVG PIVS P P, laureate head right.
DACIA around, Dacia, wearing short tunic and cloak flowing 
behind, standing left, holding crown on three layers 
on right hand and long dragon-standard in left. S-C across
fields, COS II in ex.

BMCRE 1187; Cohen 347; RIC 581.
Very rare.

With permission of cngcoin.com, the AK Collection, ID B02