Radiate depicting decastyle temple

[Cacuci]

Hello,
Please help me ID this one. It's a radiate coin, perhaps a dupondius.
The reverse shows a decastyle temple.  I saw decastyle sestertii only for Antoninus Pius and Hadrian (scarce).
The face on my coin is mode like Trajan's or Caracalla's.

26,3 mm , 10.2 g.

Thanks.

[Cacuci]

I analysed the coin some more, and there is a possibility to be octastyle temple, not decastyle. I highlited in red what i can see on the coin.
It doesn't seem to be anything in the middle of the temple.

Anyway, could it be a dupondius for this type ?
http://wildwinds.com/coins/ric/trajan/RIC_0146.jpg

[shanxi]

The problem is that you can´t exclude the provincial coins, e.g. this one looks similar, like many others too:

https://www.acsearch.info/search.html?id=69938

[Tom Mullally]

I first guess is that it's Koinon of Bithynia.  But it's too worn for me to see the necessary details.

Tom

[djmacdo]

It looks like Hadrian Koinon of Bithynia to me too.

[Cacuci]

Thank you Tom. Hadrian , Koinon of Bithynia it is indeed.
 The big space under the temple on the reverse gives the posibility to be some legend or a representation.
But seeing the example in the link i can now figure out the legend.
I thougt it was a dupondius jundging by it's size and weight. But the Biythinian coin fits the measurements.

[Lee S]

I cant help much with the identification, but if this coin was mine, as there is zero patination remaining I would give it a clean up under running water using a soft brass bristle brush / dremel tool combo to remove the remaining crud back to bare metal, then repaternate using Jax or similar... ( or you can just wait, patina develops naturally after all!!! )

   I know this goes against all the regular rules, but as you will end up with a more attractive coin, and most likely reveal greater detail, a brutal approach would be acceptable.. ( IMHO )

 Best wishes,

Lee.

[Meepzorp]

Hi folks,

I immediately suspected Bithynia, Koinon also.

Here is my example:

https://www.forumancientcoins.com/meepzorp/rp_bithy_minor_mints.htm

Meepzorp