I am sorry for the poor information I am about write. I was in the Mercantile exchange in Eau Claire Wis on Saterday And looked at Several nice Lugers there. One was marked Hienrich Krieghoff on the left side of the frame. I'm sorry I didn't get the sierial # or the chamber markings etc. The store owner is bringing it to the Tulsa show to sell it. Sorry when I saw the $10,000 tag on it my eyes glazed over and I handed it back to him.