Watch List notes:

Heraclonas (?) (20 April-October 641). AE Half Follis, Ravenna mint. Obv. Bust facing, wearing crown and chlamys and holding globus cruciger. Rev. Large K between A/N/N/O and II/II; above, cross; below, RAV. D.O.13. Ranieri 663 (cf. note). AE. g. 2.46 mm. 18.00 RRRR. Of the greatest rarity and in excellent condition for issue. Superb untouched dark green patina. About VF/VF. For attribution of this issue to Heraclonas by P. Grierson, cf. the Dumbarton Oaks Catalogue, Vol. II, Part 2, pp. 389-401.