Watch List notes:

Constans II, with Constantine IV, AV Solidus. Constantinople, AD 654-659. [∂ N] CONSƮANƮINЧS C CONSƮAN, crowned facing busts of Constans on left, with long beard, and Constantine on right, beardless, both wearing chlamys; cross between their heads / VICTORIA AVϚЧ B, cross potent on three steps; CONOB in exergue. DOC 25b; MIB 26; Sear 959. 4.35g, 22mm, 6h.

Extremely Fine; highly detailed.

From the inventory of a UK dealer.