Constantinus VI, 780-797, and Irene with Leo III, Constantinus V and Leo IV. Solidus 790/792, Constantinopolis. No officina letter. Obv. Crowned bust of Constantinus V in chlamys on l., facing, and holding globus cruciger in r. hand. On r., bust of his mother Irene in loros, wearing elaborate crown, holding globus cruciger in r. hand and cross tipped sceptre in her left. Cross above. Rev. Leo III, Constantinus V and Leo IV seated facing. 4.42 g. Sear 1591. DOC 2a. Very rare. Very fine.