Mesembria, Thrace, AE21, ca. 200-100 BC. 5.60 gr

Diademed female head right. 
METAM-BRIANWN, Athena Promachos advancing left, brandishing 
spear, shield on arm. 

BMC 8.

Courtesy of International Coin Exchange Ldt, Sale I. May 2011. Estimate 50 Euros.