Your serial number is missing a letter and/or a letter/number preceding or above the 21536. This information is needed to determine the year of manufacture. Please re-check and ask the question again. Thank you.
Look on the receiver and barrel.
Depending on the model it can be found on the bottom of the receiver or on the barrel. how to find the year of a belguim browning over and under shotgun by the serial number 53125
Your serial number indicates that your Browning light weight auto-5 shotgun was made in the year 1971.
Where will be marked on the barrel/receiver.
Check the receiver and barrel
Check the receiver sides and bottom and the barrel
With the serial number that you provided,your Browning sweet sixteen shotgun was produced by FN of Belguim for browning in 1952.As for the value of your shotgun,it will be based on the original finish having between 60%-90%.A plain barrel model will be 425-725 dollars,a solid matte rib model will be 600-950 dollars,and the vent rib barrel model will be 675-1,050 dollars.
You will have to call Browning to find out.
left side of barrel usually
Should be marked on the barrel
It will tell you on the receiver/barrel
You will have to provide the model, type of action, barrel length, gauge