Very nice rig Van,
You might also want to enter your red nine in Jan Stills forum under a topic (heterogeneity of red nine grips) within the â??central powers pistolsâ? category.
http://luger.gunboards.com/topic.asp?TOPIC_ID=4844.
There was a progressive change in grip pattern(from fine to course grooves) during production of the red nine.Your red nine appears to be one of the last ones to have the fine grip pattern with 32 or 33 grooves countable in your left grip picture.
I am assuming that the grips are matched.
John