Need the name of the maker.
Impossible to answer without knowing who made it.
This gun was made in 1960
Proofhouse.com has sn data
This gun was made in 1960
It was made in 1965
1966
Made sometime in the mid 1870's.
Serial numbers are not unique between makers. Impossible to answer.
This gun was made in 1953.
Possibly if it is a Browning made by Miroku.
A Browning Auto 5 Lightweight shotgun was made in 1957 with that serial number on it.
Serial numbers were not required before 1968. Check the receiver, barrel.