Severus Alexander, Nicaea, 222-235 AD. AE 21mm; 6.3g.

Obv: M AUR SEUH ALEXANDROS AUG, radiate, draped bust right,
seen from the back.
Rev: N-IK-AI-E between, WN beneath legionary eagle between two 
standards.

SNG Copenhagen 519 var (obv legend with H).