The best places online I have found to see the current market price of firearms are gunsamerica.com auctionarms.com gunbroker.com hope this is helpful Its not a Sweet Sixteen unless there is an S in the serial number.
with these fine made Belgium shotguns,condition is everything in the value of your Browning Sweet Sixteen shotgun which was made in Belgium in the year 1957.They can be worth between 300-1,200 dollars if the original condition is quite prevalent and the bore is in excellent condition.
Value of Browning Sweet Sixteen serial # 74366
500 USD give or take
50-550 usd
Your browning sweet sixteen was made by FN of belguim for browning in 1966.
your browning sweet-sixteen with the serial number you provided was made by browning in belgium by FN in 1956.
Sweet Sixteens, whether Belgian or Japanese, in original excellent condition, are bringing over $1000.
Your browning sweet sixteen was made by browning in 1961.
Check the Browning web site or call them
500 USD
What_is_the_value_of_a_Browning_Sweet_Sixteen
You will need to call Browning.