Trebonianus Gallus. Tetradrachm; Trebonianus Gallus; 251-253 AD, Alexandria, Egypt, Year 3 = 252-3 AD, Billion Tetradrachm, 10.84g. Cologne-2838, Emmett-3674/3 (R1). Obv: A K Γ OVIB TPEB ΓΑΛΛΟC ΕVCΕΒ Laureate, draped, cuirassed bust r., seen from front. Rx: Serapis standing l., with kalathos on head, raising r. hand and holding scepter in l.; date L - Γ across field. Ex M&M Auction 14, 16 April 2004, lot 868. Ex Peter Lowrek Collection.. EF