Trajan Decius. 249-251 AD. AE Sestertius 29 mm, 18.77 g. 

IMP C M Q TRAIANVS DECIVS AVG, laureate, draped and cuirassed bust right.
DACIA S-C, Dacia standing left, holding sceptre surmounted by ass's head. 

RIC V 112a; Cohen 18. 

Used by permission of CNG 69, Lot: 1476, June 2005.