OT: Need identification of this C96-stock

[P. Ristan]

I just bought a C96/1916 in 9mm. It came with an unnumbered holster-stock. The stock has been with the gun since 1945, that has been proven. The gun is 1920-stamped.

But what kind of stock is this???
It is not a c96/1930-stock, nor is it a schnellfeuer-stock.. I have compared it with both original WW1 military stocks, and standard civilian c96 stocks from the same period. And I'm quite sure it is produced during ww1 or early weimar period. Also quite sure it is mauser-produced. But are there many unnumbered stocks known? Or is this rare? A replacement stock perhaps?

Here are 3 photos:

http://www.blinkskudd.net/Album/imag.../c96stokk1.jpg

http://www.blinkskudd.net/Album/imag.../c96stokk2.jpg

http://www.blinkskudd.net/Album/imag.../c96stokk3.jpg

http://www.blinkskudd.net/Album/imag.../c96stokk4.jpg

http://www.blinkskudd.net/Album/imag.../c96stokk5.jpg

I can take more photos if it is needed...

Thanks!