Unknown Ancient Chinese Coin #3 [opgelost]

Hello all,

This is a Chinese coin that is a little bit harder to find based on how worn this is. I do think this would be possible as the outlines are there which could pin point what emperor it would be under. It measures around 25mm which should help to find where it is from. 

Hope to hear what this is!

The characters at 6 and 9 o'clock are Tong Bao. This means, that it's not the usual top-down-right-left character order (because then those would be at 3 and 9 o'clock), but these are read clockwise. This is usual on lot of Northern Song coins. Going through of those, these 2 I think are the closest matches:

N#34494

N#27432

There is not much left of the other 2 characters. I'm not a 100% sure, but the first coin seems a littlle bit closer.