I found it on a Polish on line auction web site.
Seller said that probably box belong to ex policeman.
Hi find it in the basement after he bought a house.
Unfortunately he couldn't said me nothing more. >:(
I had a luck that he didn't throw away it.

My theory is that that was a kind of gift box for high rank policeman.
Taking into consideration a kind of materials use to make it, I think that was made in late 60' or 70'.
Dimensions:
Length - 25cm
Deep - 19cm
Hight - 6,5cm
And here you are some pictures:







The box is made of wood and covered with very thin leather or artificial leather.
Inside the box has place for P64, spare mag, cleaning rod and two boxes of ammo.
Unfortunately as you can see the box isn't in perfect condition :'( but I'm going to renew it (if I only find some time)

Sorry guys for ppk replica in the box but I still don't have my own P64 :-[