Need a detailed description
I would need to know what model of shotgun we are talking about before I can say when your browning was made.
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 .
You will need a professional appraisal.
$1600 if in excellent codition
what is the value of browning sweet 16 shot gun
My records indicate that the serial number X91801 belong to a Browning auto 5 shotgun in 16 gauge that was produced by FN of Belguim for Browning in the year 1953.A Browning auto-5 shotgun in 16 gauge will bring between 250-550 dollars for a shotgun with between 60%-90% original condition,and a good bore.
Between 300-550 dollars depending on barrel type and overall condition of the shotgun.
remington wingmaster 16 gauge
If you have a 12 gauge model auto-5 Browning shotgun?Then it was produced by FN of Belguim for Browning in 1923.If you have the same shotgun in 16 gauge,then it was produced in 1928.
With the serial number that you have provided,your Browning auto-5 shotgun in 16 gauge was made in Belgium for Browning in the year 1926.
Impossible to answer without knowing the model.
100-1000 USD depending on EXACTLY what you have and its condition, accessories, etc.
100-1000 USD or so
If your browning auto-5 shotgun is a 12 gauge then it was made in 1927,if you have a 16 gauge shotgun it was made in 1934.