Watch List notes:

ISLAMIC, Time of the Rashidun. Pseudo-Byzantine types. Fals (Bronze, 24 mm, 4.64 g, 11 h), imitating a follis of Constans II, uncertain mint, circa AH 24/5-26/7 = AD 645-647. Crowned, bearded and draped bust facing, holding globus cruciger in his right hand; to right, countermark. Rev. Large M between traces of a legend and X/Ч/II; above, cross; below; Γ; in exergue, traces of legend. Goodwin&Gyselen, p. 48, Class H. H. Pottier, I. Schulze and W. Schulze: 'Pseudo-Byzantine Coinage...', in: RBN 154 (2008), Class III, 1a, Fig. 2. Rare. Overstruck on a halved Byzantine follis. Traces of overstriking, otherwise, very fine.