Diocletian, silvered antoninianus. Antioch. 22mm, 3.74 g.

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 dot XXI.

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

With permission of Roma Numismatics E-Sale 55, Lot 1052, April 2019
(Described as RIC 322 (Cyzicus) in error. Cyzicus did not have an officina Epsilon Delta).