Help id, roman, possibly greek coins (also, are they fake?)

None are magnetic, found them being sold at a coin market. Was it a bad decision to buy them?

First things first, giving their diameters would help greatly.

Second, I think the bronzes at bottom are real, the silvers at top I can't confirm so I'll leave to the experts.

Citeer: "Giobruno"​First things first, giving their diameters would help greatly.
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​Second, I think the bronzes at bottom are real, the silvers at top I can't confirm so I'll leave to the experts.

​The bigger one is 1.3 inches, the medium one is one inch, the smaller ones are about 0.7 inch both

In my opinion all 4 are fake, take a look at the rims and how round they are, ancient coins don't have such rims. But lets wait for a few more responses, I'd love to hear other members opinions too.

Мake the photo larger, at an angle is better.
Looks like this

My take:

1st coin - possibly fake or just heavily cleaned and polished (can’t make out much because of the shine).
2nd coin - looks legitimate to me.
3rd and 4th coin - Highly confident they are real - no real point faking these.