Help PLS identifying Song Dynasty coin??

Can anyone/ someone please help me out in identifying this coin, supposedly Song Dynasty?

Have had a hard time matching the characters on it to others online!!

Any help would be much appreciated.

Thanks - Amber

Hi I'd love to help but I am unable to make out the characters on the coin. Will it be possible to sharpen the image of the coin?

Hi there,

The coin in person does lack definition. One character seems all but corroded away...

I have attached a more focused pick, one with flash on, and one with flash where coin is rotated 180deg to first pics. And another in original position for good luck...

Thanks so much for taking the time!

I cropped and rotated and changed colour, which may help >
[what is the diameter?]

Thanks ZacUK! Looks much better than my amateur job.

Its diameter is 23.5(ish) /23.6mm across...

Oh, and in case that picture should be the other way up,
here is one of the others amended ...

lettering:
元
（宝） 丰
通

Emperor Yuanfeng. That is his era name from 1078 to 1085.

https://en.numista.com/catalogue/pieces34494.html

Correct. However you still need to pay attention whether it is Chinese version of Annamese imitation version.

They can be distinguished by the thickness of the coin. Annamese coins are thin like sheet, while Chinese coins somehow have an obvious thickness like 0.7-1mm

Chris

Well done. Now I compare them side by side I see it ...

Thanks everyone for your contributions! So helpful. :)

I believe it is Chinese, in that it has the .07-1mm thickness.

It's fairly weighty for the size too.

Much appreciate the time you have all taken to help me out!!