Whats with the '9' on the grips on some artillerys?

[alvin]

Originally Posted by luger.parabellum

I've seen some really nice ones recently, and not that expensive either, for instance the one enclosed Zella Mehlis costs about USD 1K

Yeah. Cheap!! Back some days ago, a member posted an ad on a RZM PPK in the WTS column. I thought I would trade with a Mauser 1930 for it. But looks like the seller had no interest. Anyway, I need to find another nice one in future. The variation is scarce, but still showing up on regular basis. Not urgent.