Constantius II, as Caesar, AE4.  

Minted in Trier, "Before 340 AD".

obv: FL IVL CONSTANTIVS AVG, laureate, cuirassed bust right 
rev: VIRTVS AVGG NN, Soldier standing holding spear and resting
 hand on shield, TRP in ex.

Rated "Scarce" by RIC.

Contributed by Tony Woodly.