Chinese cash coin - Uniface and unknown!

Hello all,
I'm stumped!
composition - bronze, slightly bent, appears in hand quite old, 4-5 ash grams
All help greatly appreciated!

Hello

Make me think to the Dading cash
But it isn't
Could be a charm coin
you can check on primaltrek
it could also be a tourist token

I had been directed by a friend towards a dating cash, but there were obvious differences that made it unlikely...
Maybe someone else has seen something of the sort?

To be honest

my first impression was a tourist token
the characters are thick and the patina does not look good to me

modern fantasy issue, patina is acid etched. This coin is based on Jin dynasty coinage (1115–1234) https://en.wikipedia.org/wiki/Jin_dynasty_coinage_(1115%E2%80%931234)

*metal is wrong for the period, brass coin didn't show up until mid to late Ming Dynasty https://en.wikipedia.org/wiki/Ming_dynasty_coinage

*Chinese calligraphy is wrong, authentic Jin dynasty coin still have resemblance of Song Dynasty's slender-gold-style (callighaphy), this one have the hand writing of elementary school kid

Could be Annam

https://art-hanoi.com/toda/20