$100-$150, depending on condition and how attractive it will look over the mantle. Maybe a little more if like-new and a lot less if rusted or busted. Does the carving also have red jewel eyes?
Under $200.
A couple hundred dollars.
Pieper was a Belgian gun maker, so it was most likely made in Belgium. Look for the Belgian black powder proof marks.
Those early Belgian guns are generally considered wall hangers. Most have a form of twisted-wire barrel construction. If yours is actually 'Fine Damascus' and not actually laminated steel, and if the engraving is better than typical it might bring $200-$300. If it is the standard JABC (just another Belgian clunker) it will top out at $150 as a mantel decoration.
1850-1870
No.
A damascus barrel is a barrel made of damascus steel, which is steel produced by hammering two different steels together. The twist refers to the pieces of steel being twisted while they are hammered, which produces the distinctive pattern on the steel.
Damascus barrel (in French).
Not.
You don't.
Damascus is a type of steel used usually of older firearms and tools
With the serial number that you provided,your Ithaca double barrel shotgun with the damascus barrels was produced in the year 1900.