Roman Provincial Coins, Bithynia, Nicomedia, Valerian I., Tetrassaron, vf /good vf

Bithynia, Nicomedia. AE-Tetrassaron. Radiate, draped, and cuirassed bust of Valerian I. right, vis-à-vis radiate, draped, and cuirassed bust of Gallienus left; between them, bareheaded, draped, and cuirassed bust of Valerian II. right / Three temples situated around central altar with serpent; cult-statue of Demeter within central temple, holding torch and ears of corn. SNG Aul. 860; very fine / good very fine, brown patina