1939 S/42 Luger Matching From George Anderson

[DonVoigt]

Originally Posted by Edward Tinker

That may be true, but grip numbering is not always consistent on Mausers / same with later bakelite or wood grips - you never know ....

Ed,
I'm sure that is why they said "most" instead of all.

To me that means some may not be numbered; the authors do speculate elsewhere that the reason(s) for un-numbered grips could be that they are replacements or were never numbered in the first place.

Hence "most" grips have numbers.