Claudius II AE 10 Assaria of Sagalassus, Pisidia. 

AY K M AYR KLAYDION, laureate, draped, cuirassed bust right.
Tyche countermark below.
ALEXANDROS CAGALACCEWN above and beneath Alexander III on 
horseback riding right, holding spear in raised right hand, 
aiming at a helmeted enemy fleeing right, head left, right 
hand raised, before him. In the centre, Zeus standing, 
hurtling thunderbolt, left foot on top of two steps.
Corn-ear at lower left, I to right.

BMC 50, this coin.

Courtesy of the British Museum.
Purchased from Rollin & Feuardent, 1872, ex Wigan Collection.