You must give a much more detailed description of your Sweet-sixteen overall condition,to include the amount of original finish remaining on the wood and metal,and the bore,s condition.this will give me a chance to give you a acurate value of your highly desirable Browning sweet-sixteen shotgun.
50-500 usd
That is not a Sweet Sixteen serial number.
you would need to include if the shotgun in question is a sweet-sixteen auto-5 shotgun,or a browning side by side,or a standard weight auto-5 shotgun and the condition of your shotgun to get a accurate value .
How much is a Browning Sweet 16 gold trigger shotgun worth?
Value depends on condition, age, accessories, box, papers.
50-525 usd
Use this link to see answer
The Sweet sixteen name is the model of your Browning auto-5 shotgun!Is the number 51666 the serial number of your shotgun?Please re-post your question so that a answer can be provided.
Your browning 16ga auto-5 shotgun was made in 1934 with the serial number that you provided.However the browning sweet-sixteen auto-5 shotgun was not offered until 1937.These sweet-sixteen shotguns were made from 1937-1975.Does your browning shotgun say sweet-sixteen on the shotgun?If so please check your serial number again.
100-300 USD
50-600 uSD
That's not a Sweet Sixteen serial number. In fact, it doesn't even look like a Browning number to me.