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

[cirelaw]

First, I am always impressed by yourselve and friends knowledge and respect for all the firearm Beauties. I must confess the Walther family is one of my favorite. I think that somet under estimate their importance, prestige and shere beautiful! They probobly produced more different fine models than any one! We are especially privaleged to be able to hold them in our hand~~Lets not forget James Bond! http://www.dailykos.com/story/2014/0...stol-A-History