Commodus AD 177-192. Bi. Tetradrachm of Alexandria. 24 mm; 12.78g, dated year 21, AD 180-181.

M AYRH KOMMO ANTWNINOC CE, Laureate head right. 
L K-A, Emperor on horseback galloping right, wearing cuirass 
and paludamentum, wielding spear at enemy prostrate right beneath his horse.

Milne 2625; BMC 1430; Geissen 2203.

With permission of cngcoins.com, the AK collection sale.