Hi Larry,
Do the little numbers on the inside surfaces of your BW grips look like they were moulded-in, stamped, or scribed/engraved...?
I am curious as I do not recall anyone mentioning numbers being present on the BW grips..
There have been a few members that have reported numbers on the bottom of black plastic magainzes...that are, too, usually not numbered.
Belated welcome to the Luger Forum...!
Regards,
Pete...