Achaemenid Empire, 5th century BC, Silver Siglos. obverse- Hero King with bow and spear, reverse Incuse punch
King Artaxerxes gave Ezra a letter with instruction and gifts for the Israelites of his kingdom who voluntarily returned to Jerusalem following a period of captivity.
Ezra 7:15 tells the story.
"You are to take with you silver and gold that the king and his advisors have freely given to the God of Israel, whose dwelling is in Jerusalem"
This silver siglos would have been the currency carried by the Israelites on their journey home.