Thanks Aguest for your considerations
I am really not very knowledgeable about Swiss or Danish silver, let alone if it is from the 17th century.
I also think we should look in Northern Europe.
I seem to see a K with four dots on the sides, which makes it unlikely that it's a Romance-speaking country.
There is, however, something strange in the decoration of the handle:

the sumptuous crown with lion and plumes is above pin-pricked initials, off-center, to boot.
I can't give a reason, even less if, as the description of the lot states, it's a palmatoria, therefore used by a high prelate