Roman Provincial
BITHYNIA, Nicomedia. Julia Mamaea. Augusta, AD 222-235. Æ Chalkous (16.2 mm, 2.39 g,). IOYΛIA MAMAIA AYΓOY, diademed and draped bust right / NIKOMHΔЄΩN ΔIⳞ NЄΩKOPΩN, galley right with three oarsmen. Unpublished in the standard references. Very rare.