Trebonianus Gallus, AR Tetradrachm 25 mm, 13.49 gr. 251-253 AD. AUTOK K G OUIB TREB GALLOC CEB, laureate, draped bust right, officina mark of one dot beneath bust. DEMARC ETOUCIAC, eagle standing right, head left, tail left, holding wreath in its beak; officina letter A between legs, SC in exergue. Prieur 656; Dura I 540. With permission of Roland Müller. Added June 2013. Unusual with a white patina.