What Do I Have Here?

looks like it is probably real, it's a Roman bronze coin made in Siscia, probably 4th century,

other people here are good at IDing these

Thank you for the comments, I am going to guess that these are very common, as this one was ridiculously cheap?

BobL has IDed it. It is Constantius Gallus, this one is in very nice condition.

Wow, that is very interesting, ill have to do some more research. I bought this only because I thought it looked cool haha. and thank you Bob! I'm glad to be here

I have also bought ancient coins at "flea markets" ! I bought two rather decent silver coins for $20.
After the purchase I told the seller "you know these are two thousand years old ?"
He replied "yes I know ........ but try telling that to people around here"
He could not sell them because no one believed him !

This is a more interesting type than it first appears. The reason it seems so odd is that the design is one created and issued for Vetranio, who also issued them for Constantius II from mints under his control. However, Vetranio abdicated before Gallus was raised to Caesar so numismatists were quite surprised when his designs cropped up (including from one of the mints that Vetranio never controlled).

Nice pick up!

Interesting coin