Watch List notes:

BYZANTINE EMPIRE. Constans II. AD. 641-668. AV Solidus (4.44 gm; 19 mm). Constantinople, 4th officina, AD 654-659. Crowned and draped facing busts of Constans II, wearing long beard, and Constantine IV; cross above / Cross potent set on three steps; CONOB. Sear 959; DOC 25d. Well struck on a nice flan. Choice AU. Lustrous.