Philip I Potin Tetradrachm, 12.19g; 24mm, Year 4 = 246-247 AD. Alexandria. 

Obv: A K M IOV FILIPPOC EV C, laureate, draped and cuirassed bust 
right, seen from the back
Rev: Nike advancing right holding wreath in both hands and palm 
over shoulder. 

Year L-Delta in right field.

Milne 3663. 

With permission of Roma Numismatics, December, 2009