ISLAMIC, Time of the Rashidun. Pseudo-Byzantine types. Circa AH 37-55 / AD 658-675. Fals (Bronze, 25 mm, 5.31 g, 11 h), probably imitating a follis of Constans II, uncertain mint. [IҺ]p[ЄR] STOҺ Crowned and draped bust facing, holding globus cruciger in his right hand. Rev. Large M between blundered legends; above, uncertain mark (staurogram?); below; Γ; in exergue, ON. Goodwin, Khalili Collection, p. 34, 10 (type H). H. Pottier, I. Schulze and W. Schulze: 'Pseudo-Byzantine Coinage under Arab Rule', in: RBN 154 (2008), p. 89, class III.1a. Very rare. Overstruck on a halved Byzantine follis. Very fine.