Tranquillina AE24 of Deultum, Thrace. 

SAB TRANQVILLINA AVG, diademed and draped bust right.
COL FL PAC DEVLT, Apollo standing right, looking left,
resting left hand on lyre set on tripod to right. 

Varbanov 2911.

With permission of numislanz.de, Auktion 102, lot 881