Hi!
I have som pics of the black draeger Norge II on
Åkes' Rebreather Related Page. You will find the service manual with spare parts list as well as the (Swedish...) user manual there.
I dive my units regularily and I have modified one of them to an MCCR, see the photo album at
www.dykarna.nu/?userId=2987.
As all of the old uncomplicated O2 CCR the Norge is a pleaseure to dive (-:
Regards // Åke