Gallienus, AE26 Pentassarion of Serdica, Thrace. AVT K GALLIHNOC, laureate, draped, and cuirassed bust right. OVLPIAC CERDIKHC, the Three Graces standing, the left and right facing, the middle with back turned; the ones on the left and right each holding urn from which liquid flows. Staal 57.1.1; Moushmov, Serdika 518; Varbanov 2650. With permission of cngcoins.com, April 2013.