Watch List notes:

Constans II. 641-668. AR Hexagram (21mm, 6.55 g, 6h). Class I. Constantinople mint. Struck 641-6471. ∂ N CONSτAN τINЧS PP AV, crowned and draped facing beardless bust, holding globus cruciger / ∂ЄЧS A∂IЧτA ROmΛ · INS (sic), cross potent, set on globe, set on three steps. Yannopoulos Type I, 1st Series; cf. DOC 48 (for type); MIB 142; SB 989. Attractive toning, scratches under tone, minor peripheral weakness on reverse. EF. Sharply struck.

Ex Gemini IX (9 January 2012), lot 530 (hammer $3500); Gorny & Mosch 151 (9 October 2006), lot 53: Malcom W. Heckman Collection (Triton VIII, 11 January 2005), lot 1373.