BYZANTINE EMPIRE: Constantine IV Pogonatus, 668-685, AV solidus (4.35g), Constantinople, S-1154, helmeted, draped, and cuirassed bust, wearing helmet with plume (without crest) and holding spear and shield // cross potent on 3 steps between Heraclius and Tiberius, officina S, VF to EF.
Estimate: 260-325 USD