There is no way to tell from the serial number.
You will have to contact Browning to find out.
You can't tell by the serial number. Go to http://www.browning.com/customerservice/qna/detail.asp?ID=100 for choke specifications.
Browning has information on their web site.
What is the value of a 12 gauge Browning shotgun serial J68824?
50-800 usd
You will have to call Browning and provide the serial number.
Depending on condition, gauge, barrel length, choke; a few hundred to maybe a thousand
Impossible to answer without seeing.
You will have to call Browning.
Not a valid Browning serial number.
Not a valid Browning serial number.