Tenos, Cyclades, AE18, ca. 200-188 BC. 4.21 g. 

Laureate head of Zeus Ammon right.
THNIWN, Poseidon standing left, holding dolphin and trident; 
rose at lower left. 

BMC 31-32; Weber 4737 (this coin); SNG Cop 783.
Ex Christopher Morcom Collection; ex Sir Hermann Weber Collection.

With permission of cngcoins.com, Sep 2007.