My .002, What you have here is a P Code Series 2. A Krieghoff Commercial, made from the late contract series of pistols in the 11,000 to 12,000 military range. This pistol was likely produced in the 1942 to 1945 time frame. The pistol exibits the late eagle N proofs. On the right frame rail it exibits the late type LWaA acceptance stamp. Black plastic grips. Mr. Gibson states "it appears that very few of these commercial variants were produced since the highest recorded number is P86".
So like Tom say's you have a very valuable rig.
Congratulations!!
Jesse