MS G.55 fol. 18v

Trinity: Mercy Seat God, nimbed and wearing a papal tiara, is seated on a canopied throne holding a tau cross on which a nimbed Christ, wearing a short loin cloth, is affixed with three nails andis bleeding from his wounds. The dove of the Holy Ghost is between them, near right shoulder of God. The scene is in a windowed room.
The margins are decorated with foliate and floreate ornament. In the lower margin is the heraldic shield of Hospitallers (gules, a cross argent).