Watch List notes:

Constans II, 641-668. Solidus (Gold, 20 mm, 4.50 g, 6 h), Constantinople, 5th officina (E), 651/2-654. d N CONSTAN-TINVS P P AY Crowned bust of Constans II facing, wearing chlamys, holding globus cruciger in right hand. Rev. VICTORIA AVGЧ / E/CONOB Cross potent set on three steps. DOC 19e. MIB 23. SB 956. Extremely fine.
From the B.L. collection, Switzerland.