You will have to contact the maker. No published sn data.
1947
about 1921
1947
No way to answer since you did not provide a serial number.
1976
Go to: www. proofhouse.com with serial number.
1996.
Call Browning with the sn and they can tell you.
1918
1929
You will have to call the company to find out.
No published sn data.