By that serial number alone, the gun would have been made in 1924. It's possible you have a later Auto-5. Is there a letter above or preceding the 32455? If so, then the following remarks would not apply to a newer gun. Older Auto 5' from the 20's do not command a good price unless they are in really new or near new condition. Most Ogden guns (on barrel) less than 90% sell from $250 to $500.
12 gauge Belgian Browning shotgun, serial #296305
1951.
1934
What model?
1967
your browning auto-5 shotgun was made in 1947.
This gun was made in 1951
1970
If that is the complete serial number, 1924.
Browning's web site has a sn search function.
$350-$650.
Impossible to answer without knowing which model.