Arcadius, AE4, Nicomedia mint. AD 383-408. 

DN ARCADIVS PF AVG (no obv. break), pearl diademed, draped, cuirassed bust right.
SALVS REI-PVBLICAE, Victory walking left, holding trophy over shoulder and dragging captive behind her.  No fieldmark.

Mintmark SMNA. 

RIC IX Nicomedia 45c/48b; Sear 20849.

With permission of cngcoins.com, auction 474, Lot 495, August 2020.