As I understand it, if you wind up with one of these that appears to be a Norko, but doesn't have the star, then it's a Cuban.
The story I heard is that the DPRK made bayo's for Fidel way back when.
I have a couple of these. One is a DPRK that's not near as nice as yours.
The other is, I believe, a Polish. It's got a sheath that doesn't match any other that I've seen. That one came back from Iraq back in the early part of the war.