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.
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".
Janssen Fils & Co if it has Belgian proofmarks or Crescent Fire Arms Co if it does not.
To find hammers for old rabbit ear shotguns check with Dixie Gun Works
Made in Belgium by Simonis, Janssen, Dumoulin & Co. c. 1884-1905
JANSSEN Fils & Cie LIEGE street Lambert le bègue, 4 then street St Gilles, 87 was rested by Joseph JANSSEN (Bench of test of Liege 1865/1897). This firm evolved in time by changing several times of corporate name, that is to say: JANSSEN Fils & Co (bench of tests of LIEGE 1895 - 1937) and rue Lambert Le bègue, 4 to LIEGE.. Etablissements JANSSEN Fils & Co S.A. (bench of tests of LIEGE 1937 - 1951) to LIEGE rue St Gilles,87. Fabrique d'Armes JANSSEN Fils & Co S.A. (bench of tests of LIEGE 1951 to 1954) rue St Gilles, 87 to LIEGE. This company deposited various trademarks of which: JF&C -CAMELLO - HANOVER ARMS Co - NITRO-STEEL - COLONIA LIEGE- ACIER PYROXYLE - JANSSEN SONS & Co - SOUTHERN ARMS Co - COSMOPOLITE.
Manufactured in Belgium by Simonis, Janssen, Dumoulin & Co.
The value of a double barrel shotgun made by W Morse Co would be dependent upon a number of factors. Some of these factors would include the age and condition of the shotgun.
50-100 or so
The value of a J Manton and Co double barrel 12 gauge shotgun depends on a couple things. Some of which, would be the age and condition of the shotgun.
Shotguns marked World's Challenge Ejector were made by Andrew Fyrberg & Sons Mfg. company in Worcester MA until 1903 and by the Meriden Fire Arms Co. after 1905. They are of very little collector value.
$75