Researcher is of course correct, but at least the barrel proof marks are pre-1893 and possibly pre-1878 as the NON POUR BALLE (choked unrifled bores) mark is not present.

PeteM's list of Belgian maker's marks doesn't have a 'VC'. I can't interpret the 'N something' on the right barrel
http://damascus-barrels.com/Belgian_Trade_Marks.html