Bronze, 6.15 grams, 23.89 mm. Nicaea, Bithynia. 222-235 AD. Obverse: IOVLIA MAMAIA AVG, draped bust right. Reverse: NI-KAI to left and right, EWN below, three standards, the outer two surmounted by capricorns. SNG Copenhagen 521v (legends at sides, not between standards). Rare. Good fine/very fine. A significant coin which has been published on wildwinds.com