WHAT were they, or WHERE were they? There probably are none as they were manufactured long before serialization was required by law. Well, allow me to help you on the question as to where the serial number can be found on a W. H. Davenport shotgun. Remove the barrel. The shotgun I have has a flip open tab on the right side that is attached to a screw. Unscrew that and remove the barrel. On the underside of the barrel, at the breech, you'll find the serial number. Also, I noticed, behind the after end of the trigger guard are two numbers. Those two numbers match the last two numbers of the serial number. I'm not sure of their purpose. If this was helpful drop me a line at z.poet$pam@Verizon.net (Of course, remove the $pam from the address.) Cheers, George Note: matching no's will be found on the lock, stock & barrel. The four didgits are found inside the frt stock that cradles the barrel, under the barrel where the lock will conceal when assembled. Also inside the top of the rear stock where the lock is attached, and under the lock behind the trigger guard as mentioned. And contrary to George, all numbers match on my "Davenport". signed the stunner.
NO
You will need to supply the serial numbers to your shotguns to get the age of your browning shotguns correctly.
Not until required by law in 1969.
Most do, some don't.
Serial numbers were not required on rifles and shotguns until 1968.
Blue Book of Gun Values
Try Browning.com
No published sn data.
Browning.com has sn data under customer service.
Not if they were manufactured prior to 1969.
You will have to find a listing of all the serial numbers from the maker for the shotguns they made and go through them.
Check the barrel and receiver.