It could be Karl Grudiug German Hammer Gun, Full engraving.
Does any one have information on this manufacture?
It is a 24 bore with "special Steel" written on the barrels in German. From the guy who is selling the gun, comment, hard to pull the trigger but in very fine shape. About 5 pounds in weight.
Any estimate of the value?

And especially what problems to look out for?

John

Currently own two Morgan cars. Starting on Black Powder hunting to advoid the mob of riflemen.