Hullo everybody!
Alexander, I believe what you have there is an M1913 Klewang Marechaussee made by Artillerie Inrichtingen in HEMBRUG.
This one appears to have been inspected by WIERSMA, who was active around WWI.
It's difficult to be sure by the picture, but up to about 1938, they were nickel-plated and after that, chrome plated.
The piece looks all-original, but the only way to be sure is to carefully dismantle it (only if you're confident!), to make sure the numbers on each sub-piece match.
Barring that, you may like to make sure that the same 'crowned Z' stamp also appears on the screw at the top of the pommel, on the right-face of the grip collar and on the back inside of the guard.
Make sure the serial no. on the back inside of the guard matches the one on the scabbard.
BTW ..... kronckew ..... I believe that the scabbard in your picture is that of one made by MILSCO (1946-60).
Best,