the 9Z prefix dates your browning to 1959.
The prefix of 0G to the serial number indicates that you have a Browning light weight auto-5 shotgun that was made in the year 1960.
The 9Z prefix to your serial number indicates that you have a browning auto-5 light weight 20ga.that was produced in 1959.
While you do not say what model of browning you have?The L prefix was assigned to the browning auto-5 light weight shotgun.Your serial number indicates that your browning light weight auto-5 shotgun was made by FN of belguim for browning in 1953.
The 72G prefix indicates that you have a browning auto-5 light weight shotgun that was made by FN of belguim for browning in 1972.
The 4G prefix to your serial number indicates that your Browning auto-5 light weight shotgun was made in Belgium for Browning in the year 1964.
The 72G prefix dates your browning auto-5 light weight shotgun to 1972.
The prefix 4G indicates that your Browning light weight model auto-5 shotgun was made in the year 1964.
The prefix of 9G indicates that your Browning light weight auto-5 shotgun was made in the year 1959.
The prefix of 2G indicates that you have a Browning auto-5 light weight shotgun that was made in the year 1962.
The prefix of 2G to your serial number indicates that you have a Browning auto-5 light weight shotgun that was made in the year 1962.
The serial number prefix of 4G indicates hat you have a Browning auto-5 light weight 12 gauge shotgun that was made in the year 1964.
Your browning auto-5 shotgun was made in the year 1970,which is indicated by the 70G prefix to your serial number.It also indicates that you have a browning light weight model auto-5 shotgun.