Gordian III. 238-244 AD. AE19 of Nicaea, Bithynia. 

M ANT GORDIANOC AVG, radiate, draped, cuirassed bust right
N-I-K-A-I-EWN between and beneath two legionary eagles 
between two standards. 

BMC 119; SNG Copenhagen 527. 
(Note: no obverse break, E instead of Epsilon in EWN)

With permission of cngcoins.com, at the time still under
the old name of historicalcoins.com, Auction 18.