BYZANTINE EMPIRE: Heraclius, 610-641, AE follis (5.68g), Sicilian mint, S-882, with Heraclius Constantine, struck in Sicily circa 632-64, countermarked on earlier host, crowned facing busts of Heraclius, with long beard, on left and Heraclius Constantine, on right, both crowned and wearing chlamys, cross between their heads // monogram and SCs, both sides within circular countermark, EF.
Estimate: 100-150 USD