As with any firearm, it is not possible to accurately appraise a gun without seeing it. Condition, and original configuration will determine value. Other factors such as rarity of caliber or guage and higher grades have significant impact on value. Recommend that you see a local gun dealer for an appraisal. You can also do your own investigation by looking at other models being sold that are in the same condition as yours. Try the gunbroker.com or a periodical called "The Gun List" You can also reference the Blue Book of Gun Values which can be purchased on line at various retailers.
You will have to call Browning and provide the serial number.
50-300 usd
What is the value of a 12 gauge Browning shotgun serial J68824?
12 gauge Belgian Browning shotgun, serial #296305
You will have to call Browning or visit their web site or provide the serial number.
50-500 usd
50-450 usd
No serial number equals no way to answer
If it is marked Light 12, that is an incomplete serial number.
No serial number = no way to answer. Call Browning.
YOu will have to contact Browning to find out.
Browning never used the letter B prefix to there serial numbers.