3 polker? [solved]

Dears,
I added to my collection this coin

around 19 mm and 1,07 g
I think is this coin:
https://www.ngccoin.com/price-guide/world/poland-3-polker-km-41-1614-16z8-cuid-1094570-duid-1573897
Is it right? I didn't find it on Numista...
Is it from Poland? Someone has some informations about this coin?
Thank you in advance.
Best regards
Andrea

Quote: "Andreacoins"​Dears,
​I added to my collection this coin
​
​around 19 mm and 1,07 g
​I think is this coin:
​https://www.ngccoin.com/price-guide/world/poland-3-polker-km-41-1614-16z8-cuid-1094570-duid-1573897
​Is it right? I didn't find it on Numista...
​Is it from Poland? Someone has some informations about this coin?
​Thank you in advance.
​Best regards
​Andrea

Here it is: https://en.numista.com/catalogue/pieces136367.html

Thank you so much