1/2 Duit [επιλυμένο]

hello, trying to identify this coin. I think it is a 1/2 Duit from the 1800’s, one side of the shield has 1/2, the other side looks like it has an Sg with the g underlined. Any help would be most appreciated.

Might be this one
https://en.numista.com/catalogue/pieces43473.html

Yes, that looks like it. And it is not Sg but St on the right (for Stuiver),
as there is a line seen through the double underlined lower case T letter.
Such as on this different coin >
https://www.ngccoin.com/price-guide/world/netherlands-east-indies-sumatra-island-of-1-2-stuiver-km-284.2-1821-1826-cuid-1106929-duid-1454315

The date 18** looks like 1 might be the third number, so is 1818 or 1819 maybe ...
https://en.numista.com/catalogue/pieces44603.html
which would be better seen if the pictures were without the reflective holder.

Thank You!