Depending on the exact configuration and condition, a few hundred to multiple thousands of USD.
50-550 usd
If not OEM, yes
No. 12, 16, and 20 gauge only.
Need a detailed description of finish, condition, box, papers, all features and markings.
100-1000 or more depending on specifics
50-550 usd
No
100-400 USD
Browning.com has a sn function under customer service.
That information is not in the public domain. They were made from 1967-98.
No
Blue Book of Gun Values is a good place to start.