Impossible to value with just the sn and the fact it is a pump. Need more informaiton.
Browning's web site has a sn search function you can use.
The 2 letters NX in the middle of your Browning Invector pump action shotgun indicates that it was made in the year 1993.
John Browning invented the pump shotgun in the year 1897.
Contact Browning Customer Service through their website. Some records of pre WW 2 guns were lost during the war.
i can tell you that your browning was made in 1980.This is established by the letters pm in the moddle of your serial number.i cannot tell you what kind of browning you have without a more detailed description of your firearm.(Shotgun or rifle,pump action,semi-auto,bolt action,caliber or gauge.).
Your Browning safari model bolt action rifle was made by FN of Belguim for Browning in the Year 1963.
Your Browning BLR model rifle was made in the year 1969.
Pre 1969. You will have to call Browning to narrow it down further.
1971
You must call Browning to find out. Falls outside published data.
Go to Proofhouse.com and search the Browning serial number tables.
With the letters NP in the middle of your serial number.This indicates that your Browning lever action rifle was produced in the year 1998.