Better get two or three "8 pistol" racks; Luger multiply incessantly.
I have improvised several different racks to hold lugers in my safe.
I believe the Hi-skor is the one I like best.
http://hyskore.com/storage/
Make from soft but stiff polymer, and adjustable, available in various sizes.
The wood racks are nice for a table display, but do take up extra room in a safe, JMHO.