Value is too difficult to be accurate without seeing the gun. Condition which includes the amount of original finish and original configuration will determine value. Condition and age is also a factor. Auto 5's with recoil pads (other than Mag 12's) poly-chokes and compensators will reduce value. Recommend taking it to a gun shop for appraisal.
It is the the Auto 5 Semi Automatic Browning shotgun. Named for the shape of the receiver that is unlike most any other brand of shotgun.
I would have to assume that you have a semi-auto shotgun.If your shotgun has a slight hump to the back of the reciever then it was a shotgun made with a browning patent and would have to be listed on the gun along with the royaltys paid to his patent.
All my research which goes back to 1909 indicates that FN of belguim never produced a browning auto-5 shotgun in .410 gauge.
1000.00 dollars
100-400
I assume that you are asking about a Browning auto-5 semi auto shotgun.The value cannot be determined without a much more detailed description of your shotguns overall condition,to include the amount of original finish remaining,the bore condition etc.
The Browning Superposed was the first over under shotgun. It was invented by John Browning. It was produced in 1931, but John Browning actually made a model of this gun back in the 1880s. http://en.wikipedia.org/wiki/Browning_Superposed
Your Browning auto-5 standard weight shotgun which was made in the year 1946,will bring between 600-675 dollars for a plain barrel model,900-1,000 dollars for a solid matte rib barrel model,and 800-900 dollars for a vent rib barrel model in the condition that you describe.You will loose some value due to the poly choke that was installed on the shotgun,but make it back buy the fact that you have a 16 gauge,instead of the standard 12 gauge.
Some models had a small detailed reference to being back bored as early as 1990. Not until the 1995 Catalog was released when Browning hi-lighted the process as a marketing tool on all shotgun models.
I must first say that sears did not keep any production records of the shotguns they bought from various makers.your sears model 102.25 was made by Stevens.The model of your shotgun is Stevens model 520A. These john browning designed semi auto shotguns had the hump back design noted on browning shotguns.these Stevens model closely resemble the savage model 720 with the same john browning design,and these were made from 1930-1949.
If your model 400 is a semi auto shotgun, with a squarish back to the receiver (something like the Browning Auto-5) these were made for Western Auto by Savage/Stevens/Springfield, and should cross reference to the Mdl 745. The e-commerce side of gunpartscorp.com has a schematic for the Savage 745/ 745C, see if that looks like yours. They DO have some parts available if needed.
50-1000 usd