Tacitus AE Antoninianus. Serdica.

IMP CM CL TACITVS PF AVG, radiate, draped, cuirassed bust right.
PROVIDEN DEOR, Providentia, holding two standards, standing right, 
facing Sol, holding globe, and raising right hand, standing left.

Mintmark KAA.

Estiot 2402, La Venera 1835, rare.

Ebay sale by AAH.