1956.
I can answer your question if you supply a serial number.
your browning sweet sixteen was made in 1955.
Your Browning sweet sixteen was made in the year 1955 with the serial number that you have provided.
If that is the complete serial number, it is not a Sweet Sixteen. It is a standard 16ga Auto-5 made in 1928. The Sweet Sixteen was not introduced until 1936.
This Sweet was made in 1954
Serial number s76529.The serial number S76529 indicates that your Browning sweet sixteen shotgun was made in the year 1957.
your browning sweet sixteen with a 2s prefix was made in 1962.
Your Browning sweet sixteen shotgun was produced in the year 1954 with the serial number you have provided.
The 1S prefix to your serial number,dates your Browning Sweet sixteen shotgun to the year 1961.
Your browning sweet sixteen was made by FN of belguim for browning in 1957,with the serial numbe that you provided.
your browning sweet-sixteen with the serial number you provided was made by browning in belgium by FN in 1956.
1958.