Watch List notes:

Constans II, with Constantine IV, AV Solidus. Constantinople, AD 654-659. [∂ N CONSƮANƮ]INЧS C CONSTAN, crowned facing busts of Constans on left, with long beard, and Constantine on right, beardless, both wearing chlamys; cross between their heads / VICTORIA AVςЧ A, cross potent on three steps; CONOB in exergue. MIB 26; DOC 25; Sear 959. 4.48g, 20mm, 6h.

Extremely Fine.

From the inventory of a UK dealer.