Severina, AD 274-275. Billon Antoninianus. Cyzicus. 

SEVERINA AVG, diademed and draped bust right, on crescent.
CONCORDIAE MLITVM, Concordia standing left, holding two standards. 

P in lower left field. 
Mintmark XXI. 

RIC V-1 18 var. (spelling and field mark).

With permission of EidMar auction 16, lot 357, May 2025.