I am not a world coin man being mainly focussed on ancients nowadays but as a youth I obtained a few world coins and never manged to attribute some of them. I was wondering if anyone could confirm the information I have already noted on the following coin and also provide any further information that they may be able to provide on it. I really know very little about it other than what is written on the scrap of paper it was with.
12 Skilling piece from Kongsberg,Norway under Frederik IV, dating to 1721.

I know it could probably do with some careful cleaning!
Many thanks in advance,
Regards,
Martin