Roman Envoys Lay Gold Before the Shah

From E4.3, Apologies and Gifts from Caesar. It illustrates E4.3.5–11:

E4.3.5
The envoys entered, prayers upon each tongue,And blessings for Iran’s great monarch sung.
E4.3.6
The Roman saw his crown and royal head,And sighed a frozen sigh of inward dread.
E4.3.7
He thought, “Behold a Shah of towering state,With manhood, kingship, court, and fortune great.”
E4.3.8
Two score philosophers from Rum drew near,With fluent tongues, their hearts in gloom severe.
E4.3.9
Each laid before the king a weighty hoard,Full thirty thousand gold coins were outpoured.
E4.3.10
His splendor made the Roman envoys quake;Each twisted in his anguish like a snake.
E4.3.11
The king of kings received them with due grace,And seated each according to his place.