Ottoman turquoise/coral court dagger -translation needed

[Valjhun]

I've aquired this piece recently.

Never liked that particular type of ottoman court weapons. They are odd and they have a certain "souvenir" look on them.
Quite rare and sought after, thou...

What is known about them?
In wich part of the ottoman empire were produced?

It has an inscription, can anyone translate it please?

Thanks.