EGYPT, Alexandria. Valerian I. AD 253-260. Potin Tetradrachm (23.5mm, 10.44 g, 12h). Dated RY 3 (AD 255/256). Laureate and cuirassed bust right / Eirene standing facing, head left, holding olive branch and scepter; L Γ (date) to left. Köln 2859; Dattari (Savio) 5150; K&G 88.17; Emmett 3708.3. Dark gray-brown surfaces. VF.