The gun was proofed in Belgium in 1943. The controller of proof was Théodore Degobert. It is nitro proofed for 2 3/4" 12ga. The barrels weighed 1.277 kg or 2.81 lbs.
http://damascus-barrels.com/Belgian_All_Proofmarks.html

The receiver bears the mark of Francotte. The barrels bear the trade mark of Joseph Cap. I have seen that AKAH trade mark before, it is the mark of Albrecht Kind.

http://www.doublegunshop.com/forums/ubbt...=true#Post82613

http://www.littlegun.be/arme%20belge/artisans%20identifies%20c/a%20cap%20joseph%20gb.htm

http://www.littlegun.be/arme%20belge/artisans%20identifies%20francotte/a%20francotte%20gb.htm

http://damascus-barrels.com/Belgian_Trade_Marks.html

It is very unusual to find a sporting weapon that bears Belgian proofs during WWII German occupation.

Pete

http://www.damascus-barrels.com/Movie.html