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I ask for help.
Coffee spoon from Germany. But the stamps are unusual - 750 and only crescent in the square.
And “H.Rose” - I could not find this manufacturer.
I will be grateful for the help.

the [ )] Mark was the old manufacturer mark between (1874 - 1886) of Wilkens in Bremen (1874 - 1886)
https://de.wikipedia.org/wiki/Wilkens_%26_S%C3%B6hne

H.ROSE = Heinrich Rose in Schwerin *1839 +1901

ref: Lit: Wolfgang Scheffler, Goldschmiede Mittel- und Nordostdeutschlands, S.381 Nr89 #782

Theoderich wrote:the [ )] Mark was the old manufacturer mark between (1874 - 1886) of Wilkens in Bremen (1874 - 1886)
https://de.wikipedia.org/wiki/Wilkens_%26_S%C3%B6hne

H.ROSE = Heinrich Rose in Schwerin *1839 +1901

ref: Lit: Wolfgang Scheffler, Goldschmiede Mittel- und Nordostdeutschlands, S.381 Nr89 #782

Thank you very much!

This is a German coffee spoon from 1874-1886.
On the upper side - the coat of arms of the Dukes of
At the bottom - the inscription: Johann Albrecht Herzog von Mecklenburg.
Who knows: where can be this spoon?
Palace cutlery?
I know that in the Russian guard was something similar: the officers when entering the regiment ordered cutlery with their names. But they wrote not only the name but also the year of admission to the regiment.
I will be grateful for the tips.

Dear moderator! If You combine the posts, at least change the header to a new, otherwise no question will not see. I can't change the headline.