Faustina II AE Obol of Alexandria, 20 mm, 4.79 g. Year 19. AD 155-156. 

CEBACTH FAYCTINA Draped bust right.
L (in exergue), I-Q to left and above, griffin sitting right, left paw on wheel. 

Dattari 3320 (this coin).
Very rare.

With permission of cngcoins.com, the AK collection sale.