Ahoj.
Good day colleagues, my questions:
One can really speak of a pre-coin currency since already at that time (-400--410 BC.) round coins were already minted and cast in Greece?
Wasn't it just a local idea?
What do the letters on the dolphin's body mean? It's "O Y" or "OV", we'll say it's OU??
Metal is Bronze, weight is 1.38g and length 26.58mm, height 9.05mm
Sample size:


