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.
The Benelli Supernova does not come with a damascus barrel as a factory option. However, some custom gunsmiths may offer aftermarket damascus barrel options for the Supernova.
You don't.
Not.
Damascus barrel (in French).
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.
Impossible to answer without knowing make and model.
Yes.
it is all swirly
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.
Needs to be examined by a gunsmith
I need the answer