You will have to call Browning. The sn you list goes beyond published data.
I can say that it was made after 1977, but for more specific information, you will have to contact browning customer service.
The 72S suffix to your serial number indicates that your Browning superposed shotgun was manufactured in the year 1972,by FN of Belguim for Browning.
Your Browning auto-5 magnum shotgun was made in Herstal,Belgium by the firm FN(Fabrique Nationale)for Browning in the year 1965 with the serial number that you have provided.
You will have to call Browning with the sn.
You must call Browning with the serial number or visit their website.
You will have to call Browning.
browning sweet sixteen serial number 5s43804 what year was it manufactured
Most FN production records from WW 2 and earlier were lost during the war.
The 5G prefix to the serial number indicates that your browning was made by FN of Belguim for browning in 1965.
1988
No way to answer since a serial number was not provided.