Amisos Pontos AR 18 mm, 'drachm', 2.92 gm. 

Obv: Laureate head left AVT KAI TPAI ADRIANOC CEB P P YP G  
Rev:  Lanky female (Demeter) holding corn ears and branched staff, 
 AMICOV ELEVQEPAC (The Free city of Amisos) ETOVC PXH (=year 168 of the Era of 
 Amisus = 136-137 A.D.)

GIC 1139; Von Aulock 80. There should be a Malloy ref too, but I don't have it.

"It appears to be a drachm of a fascinating series of coinage issued by the 
 Greek city of Amisos, Pontos. Hadrian visited there and was so delighted with 
 his visit, he authorized the city to strike silver coinage, a privilege 
 restricted to very few provincial cities. A small book on this series was 
 published by Alex Malloy several years ago. I don't have the book, so I
 can't give you a Malloy reference."

Contributed by Bill of kernunnos.com, (which has a nice collection of Hadrian's
Alexandrian coins among several other interesting articles.)