Older/ Ancient Coin Identification - Possibly Roman or Greek?

It's all in the title, 

I'm new to the world of coins and looking to identify this coin given to me.

It's pretty worn down.

20-24mm

no visible lettering

Any info would be appreciated.

 Similar: N#429346 [23mm] 

Reverse: Astarte standing facing, holding standard, 

within Octastyle temple with central arch and steps. 

It seems to be, thankyou!