Watch List notes:

Byzantine Empire. Constans II (641-668), AV Solidus (20mm, 4.48g), Constantinople mint, struck 641-646, crowned facing bust, holding globus cruciger, rev. Cross potent on three steps; H in right field; Z(retrograde) and CONOB+ (DOC II 15 note; MIB 19; SB 952), extremely fine

provenance
CNG, eAuction 166, 13 June 2007, lot 192