Janssen was a Belgian gunmaker. According to my notes, the company used this name c. 1892 - 1896. Answer I have a Janssen Sons shotgun that used to belong to my grandfather. It has carving on the side of the breech and the bottom. It also has carvings on the walnut stock.
I was given this same gun from my father. It has very detailed carvings in the stock and etchings on the barrel. I have been unable to find out anything about the maker or a present day price. I have looked in many of the shotgun books. My father paid 50 cents for this gun during the depression.
Janssen & Co, Leige, Belgium became Janssen Fils & Co., c. 1892. Sometime between 1895 and 1914 the company became part of Simonis, Janssen, Dumoulin & Co. They would have marked guns intended for export to the United States "Sons" instead of "Fils".
There have been several variations of Janssen shotguns. Large gunmaking family in Belgium. J JANSSEN shotguns are typical hardware-store imports that top out at $250, but JANSSEN FRES (for example) can bring several times that.
To find hammers for old rabbit ear shotguns check with Dixie Gun Works
Janssen Fils & Co was making guns from 1895 to 1965. Since yours is marked in English (Sons instead of Fils) it was made for export to the US and the mass import of shotguns from Belgium was cut off by WWI and never resumed after, so it's a pretty good bet that yours was made between 1895 and 1914. Value will be determined by how nice it looks over the mantle, usually $150 to $250.
The company was in business from 1895 to 1965. I do not think any factory records are available. If marked with the "and Sons" name in English, it was made for sale in the US and the import of inexpensive shotguns from Belgium pretty much ended in 1914.
Provide a detailed description of ALL markings.
J Janssen was one of the partners of Simonis, Janssen and Dumoulin which was a Belgian gunmaking firm that produced shotguns for the American hardware store trade from the late 1880's through about 1910. Value is for decoration, and rarely exceeds $250.
Probably about $125-$150 as a mantle decoration.
James Purdey & Sons Ltd
Probably prior to WW 1. The .22 Velodog was replaced by the .2 LR and the .25 Auto cartridge. It is a pity, but "Janssen et Fils Co." at Rue Lambert-Le-Begué of Liege, Belgium only worked from 1893 to 1939; WWII interrupted business and after it, from 1946 to 1957 went under a low-activities period, closing since then. They made nice shotguns, rifles and handguns. Janssen et Fils Cie of course means Janssen and Sons Company.
No published sn data that I am aware of.
I have two 1878 Jas Parker & Sons double barrel shotguns.