Diocletian, silvered antoninianus. Antioch.

IMP CC VAL DIOCLETIANVS PF AVG, radiate, draped and cuirassed bust right.
CONCORDIA MILITVM, emperor standing right, holding sceptre, 
receiving Victory on globe from Jupiter, standing left, 
holding sceptre.

Epsilon delta in lower centre.
Mintmark XXI.

RIC V-2 621 var (emperor). This Officina with this reverse is listed in RIC only for Maximianus.
Rare.

With permission of TimeLine Auctions, 
(www.timelineauctions.com), int. no. 135543, April 2019.