Aurelian AE Antoninianus. Siscia. AD 274-275. 22.5 mm, 4.3 g. 

IMP C AVRELIANVS AVG, radiate, cuirassed bust right.
CONCORDIA MILITVM, Emperor standing right, clasping hands 
with Concordia standing left.

Mintmark XXIS

RIC V-1, 244 Siscia, rated common.

With permission of cngcoins.com, auction 569, Lot 671, Aug. 2024.