50-500 usd
100-1000 USD depending on specifics
Use this link to see answer
A semi-automatic shotgun built on the A-5 pattern.
Please see the link below http://wiki.answers.com/Q/What_is_the_value_of_a_Browning_Sweet_Sixteen
Your Browning sweet sixteen shotgun was made by FN of belguim for Browning in the year 1951.
Need a detailed description of all markings, finish, overall condition, accessories, box, papers, engraving, etc..
Your browning sweet sixteen shotgun was made by FN in belguim for browning in 1960.
Your sweet sixteen browning auto-5 shotgun was made by FN for browning in 1963.
Browning.com
Not a question but you may wish to look at the associated link on Sweet 16's. http://wiki.answers.com/Q/What_is_the_value_of_a_Browning_Sweet_Sixteen
The serial number prefix 1S was assigned to the browning sweet sixteen model of the auto-5 shotgun in the year 1961,So yes you have a Browning sweet sixteen shotgun.