It has Belgium Black powder proof marks which shows at least the barrel was made in Belgium ( there is no reason to suppose that the receiver was not also made in Belgium). Time frame is a guess, there are no concise records for these old Belgium shotguns, because it is a percussion front loader I would guess from the 1870s to to late 1880's, could be earlier. The marks that looked like file marks, no ideal what they are, perhaps personal identification makes applied by one if it's previous owners. The star over an R looks like a makers mark, however I searched a list of over a thousand makers and could not find any one using such a mark. Belgium had a thriving Cottage industry with hundreds of small shop spread across the country. Many times small shops would combine to make a single shotgun. One shop would make the receiver and stock , and the neighbor would make the barrels and put it all together. It is not unusual to find Belgium firearms unmarked as to maker, in fact it is surprising to find one that is marked with the maker. So, sorry to say, about the only information available is, that it is an old Belgium shotgun that is over a hundred years old. It does look like a quality firearm, well made and well taken care of.
