Watch List notes:

Constans II (641-668). AE Half Follis. Carthage mint, 647/8-651/2. Obv. Crowned and draped facing bust. Rev. Large XX; cross between; above, pellets flanking; in exergue, CRTS. D.O. 140; MIB 196b; Sear 1057. AE. 6.39 g. 18.50 mm. VF.