Aurelian AE Antoninianus. Siscia mint. 21 mm, 3.67 g.

IMP C AVRELIANVS AVG, radiate, draped bust right.
CONCORDIA MILI, Two Concordia's holding standards with a third standard between them.
Officina letter P, Q, S or T in ex. (Here: T)

RIC 199
 
Sold by Numisfitz GmbH - Auction 3, Lot 902, Dec. 2023.

Note: Bust can also be (radiate and cuirassed)