BYZANTINE EMPIRE. Heraclius, with Heraclius Constantine. 610-641. AV solidus. 4.44 gm. 21 mm. Constantinople mint, 7th officina. Struck circa 616-625. Crowned facing busts of Heraclius and Heraclius Constantine, each wearing chlamys; cross above / Cross potent set on three steps; Z//CONOB. SB 738. DOC 13f. MIB 11. Choice Extremely Fine; lustrous; very fine die polishing marks; crisply struck but with weak peripheral strike. Comes with collector's custom black cardboard holder.