Province Syria
City Augusta 
Region Cilicia
Reign Tiberius
Obverse inscription
Obverse design draped bust of Livia, right
Reverse inscription ΑΥΓΟΥΣΤΑΝΩΝ ΑΙ
Reverse design helmeted bust of Athena with aegis, right

Coin no. 10 of RPC I, 4011

 

Reference CGT coll. (ex Savoca Numismatik 14, 23 Apr. 2017, lot 404)
Diameter 20
Weight 4.00
Axis 12
Note the reverse legend starts at 1h and includes ΕΤΟΥϹ, which confirms that ΑΙ is a date.
Addition Additional coin (post publication)