Watch List notes:

Constans II, with Constantine IV, 641-668. Hexagram (Silver, 23 mm, 6.39 g, 6 h), Constantinopolis, 654-659. δ N CONSTANTINЧS C CONSTA' On the left, crowned and draped bust of Constans facing, with long beard and mustache; on the right, crowned, draped and beardless bust of Heraclius Constantine facing; above, cross. Rev. dЄЧS AdIЧTA RomANIS Cross potent on globe and three steps; in field to right, B. DOC 55. MIB 150. SB 996. A well struck and very attractive example. Light marks, otherwise, nearly extremely fine.