You will have to call Browning with the sn.
Your browning sweet-sixteen was made in 1954.
your sweet 16 was made in 1948
The serial number that you have provided,indicates that your Browning sweet sixteen shotgun was made in the year 1954.
1909
1937
This was made in 1956
your browning sweet sixteen was made in 1955.
Your serial number indicates that your Browning sweet sixteen auto-5 shotgun was made in the year 1959.
Your serial number indicates that your Browning sweet sixteen model shotgun was made in the year 1954.
YOu will need to call Browning
The 70S prefix dates your browning sweet sixteen to the year 1970.
With the serial number that you provided,your Browning sweet sixteen shotgun was made for Browning in the year 1953.