Hope you all can help. A friend of mine showed me a shotgun that I think might be German. It is a double barrel in 16 Ga. Has plenty of scroll work all over the metal. Has a big fancy trigger guard. Exposed hammers. Stock is walnut with a cheek piece. Barrel rib on top has "H.Friese. Northeim".There is a proof mark on the inside of the receiver.It appears to be a Belgian Perron mark.Metal is about 80%. Wood is only 50%. Has a long lever under the forearm that swings to the side for takedown.Any idea what this is and a approx.value? Thanks for any help.