Constans II (641-668). AE Half follis, Carthage mint, 647-552. Obv. Crowned and draped bust facing, holding globus cruciger. Rev. Two X topped by pellet; between, cross. MIB 196b; D.O. 140; Sear 1057. 6.07 g. 20.00 mm. Choice example. VF/Good VF.