Raufoss started it's production of 9mm to the Norwegian military in 1948. Prior to that all sorts of available ammunition where used, German, Swedish, English and American. The production ended in late 60s/early 70s.. I'm not sure, will have to look into that.
Geco then took over the delivery of 9mm to be used in P08, P38, Browning etc. in "Parabellum" marked boxes.
Later, for MP5 and Glock, ammunition from FFV, IMI, GFL ++ have been used. For the first years they where marked "not to be used in P08, P38 and Browning HP".
I still have my detective hat on, so I will come back with more info later on (I hope)