Watch List notes:

Constans II, with Constantine IV, Heraclius, and Tiberius. 641-668. AV Solidus (21mm, 4.23 g, 6h). Syracuse mint. Struck circa 661-668. Crowned and draped facing busts of Constans, with tall plume, and Constantine; cross above / VICTORIA AVGЧ KЧ•, cross potent set on three steps between standing figures of Heraclius and Tiberius, each holding globus cruciger; CONOB. DOC (162c); MIB 95; Anastasi 186a; SB 1086A. VF, obverse double struck.

From the D. Massey Collection. Reportedly ex ACR E-Auction 22, lot 874.