Old coin, need help identifying it.

[FireFlowerPower]

I'v got this old worn coin. I doubt its worth any thing, but I would like to at least know what it is and where it is from. It's pretty thick, thick as two US quarters together. A quarter is what I have in the images for scale. It has some writing on it tho I can make out what it says. Looks like "DIVAFAY" or something like that. Any help would be greatly appreciated.

 

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[port ewen ace]

found in what country or state? start there

 

[FireFlowerPower]

US, Oklahoma. It was gave to me in about 1980.

 

[Mackaydon]

Roman coin; close to this one:
DIVA FAUSTINA II (Died 176). Denarius. Rome.

Obv: DIVA FAVSTINA PIA.
Draped bust right.
Rev: AETERNITAS.
Aeternitas standing facing, head left, drawing veil and holding torch.

RIC 739 (Aurelius).

 

[FireFlowerPower]

Awesome, thank you. That is way more details than I was expecting. Roman huh? That's pretty cool.