Watch List notes:

Constans II, with Constantine IV. 641-668. AV Solidus (20mm, 4.42 g, 6h). Constantinople mint, 4th officina. Struck 654-659. ∂ N CONSτANτIЧNS (sic) C CONSτAI, crowned facing busts of Constans and Constantine, each wearing chlamys; cross above / VICTORIA AVςЧ, cross potent set on three steps; Δ//CONOB. DOC 25d; MIB 26; SB 959. Lustrous, double struck, a few faint hairlines in fields. Superb EF.