Requires professional appraisal.
Your browning standard weight auto-5 shotgun which was made by FN in belguim for browning in 1955 is currently valued at between 500-650 dollars.
Approximate value is in the 1250.00 to 1500.00 range IF it is in pristine condition.
Pristine Condition's birth name is Keith Lyle Blanton.
Lack of detailed description. 100-1000 USD or more depending on specifics
Without a more detailed description; a few hundred to a few thousand.
The used books were in pristine condition to the point where they looked new.
Shop carefully
The serial number identifies your gun as a Browning Standardweight Auto-5, which books at $495 (100% condition) to $240 (60%) for the plain barrel model; $650 to $275 for the Matted rib (solid); and $795 to $375 for the vent rib version. Add 10% for a rounded pistol grip knob on the stock. Add 20% for new in box condition. Examine all Auto-5's for forearm cracks (a generic problem from barrel recoil). Make sure the barrel address is correct for the model year (1962 should read "St. Louis, M.O." The serial number dates the gun as being built in 1954 that was the first year of the H series guns.
100-10000 USD depending on what "pristine" means.
200k
Value is too difficult to be accurate without seeing the gun. Condition which includes the amount of original finish and original configuration will determine value. Recommend taking it to a gun shop for appraisal.
The correct spelling is "pristine." It means in its original condition; unspoiled or spotless.