Constans II AE20 Nummi. Constantinople, AD 641-658. 1.5 g.

No legend, Constans II with long beard, crowned and wearing chlamys, standing facing, holding long cross and cross on globe.
Large K, ANN to left, cross above, III to right, officina letter A below.

SB 1015; DOC 90 (this coin).

Image courtesy of the Dumbarton Oaks collection.