Another day, another question. Can anyone identify the origin, the fineness, and the maker of this. Something suggest me, it's from the north, maybe Danmark, but any other oppinion welcome!


This are the marks. The maker is "JJJ", but I don't know similar city mark, and I don't know, what means the "24"


The marks are in the bottom, next to the engraving.
The engraving: F. C. Heinrichsen, Oct. 16, 1848.
Any help appreciate!
Best regards!
Krisztián