Obv: No legend, facing busts of Constantine, with short beard, on left, and Leo, beardless, on right, both wearing crown and chlamys, cross between their heads / 
Rev: Bust facing of Leo III, with short beard, crowned and wearing loros, facing, holding cross potent, cross to right, all above horizontal line with globes at each end, above large M, X to left, N to right, A below.