Rostam's Gorz Crushes Kafur

From B14.20, Rostam Fights Kafur the Maneater. It illustrates B14.20.34–43:

B14.20.34
Bijan, the son of Giv, flew like a gale,And told the matchless chief the battle’s tale.
B14.20.35
Rostam bore down upon his stirrups then;No high or low was marked by all his men.
B14.20.36
He reached the field as if a windstorm roaredDown from black hills where storm and darkness poured.
B14.20.37
He cried to Kafur, “Dog devoid of worth,I end your war and trouble on this earth.”
B14.20.38
Kafur came rushing, fierce in his pursuit,Against the royal tree that bore such fruit.
B14.20.39
He hurled his sword as if he loosed a dart,At Rostam, who made lions quail at heart.
B14.20.40
But Rostam caught it cleanly on his shield;Kafur stood balked upon the battlefield.
B14.20.41
Kafur next flung his kamand, casting loose;Then Rostam mocked the throw as of no use.
B14.20.42
Then Rostam’s gorz descended like a stone,And crushed through helm and head and neck and bone.
B14.20.43
His brains streamed from his nostrils in a flood;Kafur fell dead and darkened earth with blood.