Augustus, AE21 of Tanagra, Boeotia, 27 BC-AD 14. 7.58 g.

Bare head right; countermark: winged caduceus (Howgego 388).
TANAGRAIWN, three nymphs standing facing, holding hands. 

RPC 1316; BCD Boiotia 309b; Pausanias 6. 
Ex Mark Staal Collection, Ex BCD Collection (Triton IX sale)

With permission of cngcoins.com, auction 337, Lot 201, Oct 2014