Watch List notes:

Constans II, with Constantine IV. 641-668. AV Solidus (21mm, 4.43 g, 7h). 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. Good VF, flan a little wavy, some light scratches.

From the Dr. Lawrence D. Sporty Collection, purchased from Pars Coins.