Tacitus AE Antoninianus. Serdica.

IMP CM CL TACITVS P 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 KA delta.

Estiot 2404, La Venera 1836, rare.

Ebay sale by AAH.