See if any books have been written on the maker and have sn tables. Check Proofhouse.com
Check the receiver.
Check the receiver.
Check the barrel and receiver
Check the receiver
Check the receiver and barrel
Check your serial number,you have to many digits.
Check the entire receiver carefully.
Check under the forearm
Check the frame and barrel
Check the receiver
You will need to check your serial number again.Winchester serial numbers for the Model 1897 shotgun only go as high as 1,024,700.
I have no records of a Browning 16ga shotgun having a A prefix to the serial number.Please check and list the model number(or name model) of your shotgun in your next post.