Watch List notes:

Constans II. 641-668. AR Hexagram (21mm, 6.55 g, 6h). Constantinople mint. Struck 648-651/2. Crowned and draped bust facing, holding globus cruciger / Cross potent set on globe set upon three steps; B to right; CONOB. DOC 51; MIB 145; Yannopoulos Type I, Series C, Class 3, no. 120 var. (bearded); SB 992 var. (same). Toned. In NGC encapsulation 4531017-005, graded VF, Strike: 4/5, Surface: 3/5, graffiti. Rare.

Ex Coin Galleries (11 February 1988), lot 449.