[SunkenCiv]

Yup.

And counterfeiting is about as ancient as coin-making.

https://www.google.com/search?q=ancient%20counterfeit%20coins

[central_va]

How do you counterfeit gold?

[Verginius Rufus]

Aristophanes in The Acharnians (425 B.C.) speaks of "counterfeit citizens," a metaphor presupposing that the Athenians hearing the play are familiar with the concept of counterfeit coins.

Diogenes the Cynic is said to have claimed that his father, as mint-master at Sinope, minted counterfeit coins. I have seen some silver coins of Sinope which had the initial letters of Diogenes' father's name on them and there was nothing wrong with them--perhaps he made up that story for its shock value.