Hello werecow,
I think you have a nice example of the Hembrug built M1913 and it looks original to me. It does not have the KM mark but does have all other marks.
Please look at a discussion in an earlier thread on this forum about a klewang being a Police klewang or a Marechaussee klewang. Yours is a M1913 Marechausse klewang.
http://www.vikingsword.com/vb/showth...ferrerid=29063
Hope the link works...
Kind regards,
Ron