Watch List notes:

Constans II, with Constantine IV. 641-668. AV Solidus (20mm, 4.39 g, 6h). Constantinople mint, 6th officina. Struck 654-659. Crowned and draped facing busts of Constans, wearing long beard, and Constantine; cross between / Cross potent set upon three steps; ς//CONOB. Cf. DOC type 25; MIB 26; SB 959. Near EF.