Help with 4 China Cash Coins

All 4 of these are 21mm diameter and pretty thin, weight is 1.45g , uniface



Any help on these would be appreciated. Thank you !

One information that would be interesting is : "how did you get these coins" ?
Ebay lots as "a bunch of genuine nothern song cash" are highly suspecticious.
Yet, some other origins are likely to be genuine ...

Pictures cropped, if it helps anyone ...

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Quote: "Frenchlover"​One information that would be interesting is : "how did you get these coins" ?
​Ebay lots as "a bunch of genuine nothern song cash" are highly suspecticious.
​Yet, some other origins are likely to be genuine ...

No, not one of those. These were mixed in with Indian States coins and some Indian, Japanese and Philippines silver that I was going after.

Quote: "JSON"​I don't think these are real. The patinas look very artificial, and the inscriptions aren't usually of currency. First coin has similar characters to https://en.numista.com/catalogue/pieces47305.html but is different.
​
​They are also missing era names tied to an emperor- the characters are either illegible or mean some generic auspicious phrase. Also, they are missing the 通寶 characters which is common to most cash coins.

​Thank you, especially for the details!

Not very surprised, but not too upset either since I was not really paying anything for these.

With all due respect, I think JSON's verdict is incorrect because they are actually all Vietnamese cash coins. Here are the IDs:

1) Thái Bình Thánh Bảo
https://en.numista.com/catalogue/pieces64641.html

2) An Pháp Nguyên Bảo
https://en.numista.com/catalogue/pieces64772.html

3) Thiên Thánh Nguyên Bảo
https://en.numista.com/catalogue/pieces82023.html

4) Thiệu Phong Bình Bảo
https://en.numista.com/catalogue/pieces64649.html

They would appear to be genuine.

My opinion is genuine.

I agree with Wandering Circle - they appear genuine to me.

The coins are not as valuable to interest "fakers" to fake them either way - especially not 4 types. The shapes (rough edges etc) also are typical of this era of coins.