(Roman Egyption/Baktria) glass (jeton/tessera/token)? [opgelost]

I've seen some coin-like glass flans with Greek-style portraits on themselves in a China electric shop. And I've simply looked for things about them and found that they seemed to be jetons in Roman Egyption/Baktria but I coundn't insure.

I'd like to know, are they real ancient jetons? Where were they made? And which price are them? Thank you.

Following are photos the shop displays:

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Having seen a lot of ancient glass vessels, I think this glass looks too clean to be anything ancient. 

Dejan

Having seen a lot of ancient glass vessels, I think this glass looks too clean to be anything ancient. 

I agree with you and it's partly why I post this.--They looks too clear and the surface is too smooth while the dirt is too white, like some one making them by beer bottles nowadays. And I can't recognize people on them like that.

So I'd like to see where the sauce is.