Certain Syracusan issues were very masterfully and finely engraved, and extremely well-struck - to the point that they can look tooled, if not altogether fake, especially if they haven't circulated much. An example is this coin of Hiketas II...
SICILY. Syracuse.
Hiketas II. 287-278 BC.
AE25, 9.7g, 12h; struck c. 283-279 BC.
Obv.: Laureate head of Zeus Hellanios right.
Rev.: Eagle standing left on thunderbolt, wings displayed.
Reference: HGC 2, 1449 (p. 376).
If you search the usual databases, CNG, CoinArchives, ACSearch, you'll find quite a few of these particular issues in very sharp, clean grades. There must have been a hoard of uncirculated coins - something like the Randall Hoard of US Large Cents. They were struck, put in an urn, and promptly buried and forgotten for 23 centuries. So other than the patina, they look pretty much brand new after a light cleaning.
If you pursue the coins of Syracuse, you'll find that the engravers of the bronzes often put as much care and artistry into their creations as the famous engravers of the the silver tetradrachms. Also, I encourage you to get the absolutely indispensable Handbook of Coins of Sicily by Oliver D. Hoover, published by CNG. Some of the best bedtime reading you'll ever encounter.