Heraclius. (610-641 AD) AE Decanummium. Constantinople mint. 
Dated RY 8 (617/8 AD). 
Obv: Diademed, draped and cuirassed bust right. Rev: Large X. AE, 1.57g. DOC II 97; SB 818. Near VF 

Base d'asta: € 30 

Courtesy of Alessandra Brunetti, on deamoneta.com, Nov. 2010.