A fancy utility knife (siraui) from Sumatra

[Sajen]

Thank you Charles and David,

I have purchased it from a german auction house and there was only a small picture posted and I was positiv surprised when I received it.
The point of the blade isn't sharp, only the edge, so I still think that it is a utility knife. But I am sure that it belongs once to a person of wealth/rank.

Regards,

Detlef