@Terence Cheesman and @dougsmit have got this right. The first token AE coinage was introduced in Sicily and spread to the rest of the Greek world from there, gradually replacing tiny silver fractions. (Athens was one of the last holdouts.) The Sicilians adapted their earlier dot notation for values on the AEs. Hoard and other archaeological evidence indicates that these AE coins date to around 450 BCE, so most definitely earlier than the Romans. I do have one that dates from around that time, but it's extremely crappy. I think Doug's tooth coins, which go back to the same early date, are indeed coins; but there's no denying this one is: It's a cast onkia from Selinos, usually dated to 450-440 BCE. You can just make out the pellet above the kantharos on the obverse. The reverse is a selinon leaf. (Really, trust me! ) I'm not sure what the earliest date is for denominations indicated on Chinese coins, but here's one that could be as early as 300 BCE: It reads "one hua," minted in Yi City in the State of Qi. (These are also the earliest round coin/square holed "cash" style coins. Well, either these or the earliest Qin ban liangs.)
The guy who came up with that one died so long ago I doubt you will hear any complaints. https://quoteinvestigator.com/2012/08/31/life-journey/ I'm rather of the opinion that most combinations of words have already been said by someone so saying anything original that is worth saying is very hard.