You will have to call Browning with the serial number.
Not a valid Browning serial number.
You did not provide a serial number. You will have to call Browning.
Impossible to value with only the serial number.
All Brownings have serial numbers.
With the serial number that you have supplied,your Browning Sweet sixteen was made in Belgium for Browning in the year 1956.
Your serial number indicates that you have a Browning BAR that was made in the year 1973 with the suffix of M73 after the serial number.
By the serial number.
1938, Belgium
With the serial number L52017,your Browning auto-5 light weight model shotgun was made by FN of Belgium for Browning in the year 1955.
With the 3S prefix to your serial number,I can say that your browning sweet sixteen was made in 1963.
Comparison to known serial numbers.