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.
You can access the date of manufacture of many Browning firearms at the Browning website, under Customer Service.
The 9Z prefix to your serial number indicates that you have a browning auto-5 light weight 20ga.that was produced in 1959.
Contact Browning Customer Service through their website. The can give you date of manufacture. They ARE still in business, making very nice guns.
Go to Browning's site, click on Support then date your firearm.
Your serial number indicates that you have a Browning light weight auto-5 shotgun in 20 gauge that was made in the year 1959.
You will need to include the letter or number and letter prefix to your serial number in this question to get a date of manufacture for your browning light weight 12 gauge shotgun.
Your browning auto-5 light weight 12ga shotgun was made by FN of belguim for browning in 1954.
With the serial number that you have provided,your Browning light weight model Auto-5 shotgun was made in the year 1958.
Your serial number indicates that you have a Browning light weight model auto-5 shotgun that was made in the year 1964.
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.
I will need for you to include the serial number of your shotgun,so that I may date it for you.