Julia Mamaea. AE22. 4.47g; 22mm. Nicaea, Bithynia. 222-235 AD. 

IOVLIA MAMAIA AVG, draped bust right

NI-K-AI-E-WN, between and below three standards. 

BMC 105; SNG Cop 514. Scarce.

With permission of Roma Numismatics, November, 2009