Uummm, on a second thought, I retract my identification - damned royal units!
The scale you show is in inches, isn't it? Could you provide length of the blade and max. thickness at the base, please?
My comment on origin stands. However, instead of a LP with mainly ceremonial function, this seems to be more of an EDC utility knife with a short variant of a basic taka blade (as also common in the longer kalasan swords). Close-ups of the hilt and base of the scabbard would be good!
Regards,
Kai