Help ID holster

[Persoons_Karst]

Hi guys
Can somebody help me for wich type of pistol this is? Looks like a fairly small pistol.
It also looks unit marker.
I.R. 98 M.G. ?

[lanners55]

I believe this is for the 1910 7.65 Mauser, the markings being for a WW1 regiment.

Best regards

Simon