Coffee spoon StP 1844

[silverfan]

This not very important coffee spoon assayed by Tverskoy shows a maker's mark F.K in a rectangle.
This mark does not fit PL 1613-1616. Who is it?
Regards silverfan

[Qrt.S]

This is a difficult case because there are some masters with the initials FK but their mark is not known. Anyway, I managed to find one prospect whose mark is known. The FK could stand for Frantz Körning/Kernig active in St.Petersburg from 1825 to around 1850 (but?). That is all I know about him.

[silverfan]

Thanks Kurt. Körning/Kernig is PL 1614 and there dated 1825-1840 that's why I excluded him. If PL is wrong and he worked till 1850 it will probably be him.
Regards silverfan

[Qrt.S]

My source tells me that he worked at least during the 1840s (he had two apprentices in the 1840s ) maybe later, but as said this is all I know. As I mentioned he became master 1825 and it is quite possible that he still worked in 1850s maybe even later. Anyway, My source shows me a soot mark of his punch (same as in Postnikova?). It is very similar to the punch on your spoon.
BTW. Postnikova copied at lot from the source I use. Maybe it is even the same soot mark? There are, anyway, as I mentioned a few other prospects so this is not a 100% case.