Tacitus AE Antoninianus. 275-276 AD. 22 mm. 3.4 g. Ticinum. 

IMP CM CL TACITVS AVG, radiate, cuirassed and cuirassed bust right.
SPES PVBLICA, Victory, standing right, holding palm, 
presenting wreath to Tacitus standing left and holding sceptre.

Mintmark S.

RIC V-1 167; Estiot 2417 ("Cyzicus"); La Venera 1880.

Attributed to Cyzicus by Estiot and Sear.

With permission of Eidmar auction 3, lot 580 (on biddr.com), March 2024.