Struck under the tyrant Agathokles, it looks like a stater of Corinth.  Good silver, 96-year old provenance, fine style, problem free coin.
 
SICILY. Syracuse. Agathokles stater, circa 304-289 BC. 
 
NGC Cert # 6828485-002 XF Strike: 4/5 Surface: 5/5 "Fine Style"
 
ex Sambon (6/1927), Lot 1003 . At the Hotel Drouot in Paris. I hope I'm pronouncing that right. The roaring 20's. Two years to go. (Silver, 19 mm, 6.78 g, 11 h), . Head of Athena to left, wearing Corinthian helmet and pearl necklace. Rev. Pegasos flying left; below, triskeles running left. Calciati 17. HGC 2, 1407. SNG ANS 682-5. Nicely toned. 
 
This coin is permitted to enter and leave the USA or any European country. It is confirmed as having already been outside the modern boundaries of the country they were struck in (Italy) long before 2011 and long before the 1971 "Convention on the Means of Prohibiting and Preventing the Illicit Import, Export and Transfer of Ownership of Cultural Property."
 
Agathacles
Agathocles
Agathakles

Spell it how you want. From the potter's wheel to the tyranny, what a ride. He pulled a Hannibal on the Carthaginians almost 100 years before the Second Punic War.