Cash, help wanted

Pubblicazioni di 2
Question for the experts:
What is this?
27,8mm
Thickness 1,6mm
4,71 gr

Chien-lung (Qianlong)
Pattern looks like this:
https://en.numista.com/catalogue/pieces17924.html
Thanks for an answer.
Non est totum quod splendet ut aurum
Rijkdom bestaat niet uit het hebben van veel bezittingen, maar in het hebben van weinig behoeften
It's not a Qianlong coin. It's clear due to the hexagonal center hole and the letter "tong"
It might be from Indonesia, where paralel coinage and charms were developed. A bit like this following example:

The best place for identification of your coin is Zeno
Referee of south atlantic islands

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