EGYPT, Alexandria. Valerian I. AD 253-260. Potin Tetradrachm (22mm, 9.33 g, 12h). Dated RY 4 (AD 256/257). Laureate and cuirassed bust right / Eagle standing left, head right, holding wreath in beak; L Δ (date) across field. Köln 2862; Dattari (Savio) 5184; K&G 88.23; Emmett 3705.4. VF, a bit of porosity. Nicely silvered.