Watch List notes:

Constans II, with Constantine IV, Heraclius, and Tiberius, 641-668. Solidus (Gold, 19 mm, 4.39 g, 7 h), Constantinopolis, 661-663. d N [...] Facing bust of Constans II, with long beard, on left, wearing plumed helmet and chlamys, and Constantine IV, on right, wearing crown and chlamys; between them, cross. Rev. VICTORIA AVGЧ Θ / CONOB T Heraclius, on left, and Tiberius, on right, standing facing and both holding long cross on globus; between them, cross potent on base and three steps. DOC 38b. MIB 37. SB 971. Struck on a slightly short flan and with a few minor marks, otherwise, good extremely fine.