Hello all ~ Looking for some information on this pistol to use as I attempt to sell it. As far as I can tell, it is a "second variant" of the Walther model 4 with a production during the W.W.I era. This particular weapon was taken from a deceased SS Panzer unit officer during W.W.II. by a known U.S. Army Lt. Any and all information that can be shared would be greatly appreciated. Thanks!