Hi, the maker of the steel/iron knife blade is F(riedrich). Herder. His maker's mark; a spade preceded by its brand name, located in Solingen Germany.
https://shavelibrary.com/w/Herder,_Frie ... _Sohn_GmbH
In theory the silver knife handle could also have been made in Germany. Although his company was a known producer for the Dutch market. Herder's knive blades are introduced in the Malay Archipelago by the Dutch East India Company
Given the engraving, I estimate it to be late 18th, early 19th century, empire style. The maker's mark, to me is much too unclear to decipher.
Peter.