The 9Z prefix to your serial number indicates that you have a browning auto-5 light weight 20ga.that was produced in 1959.
fn a5
Go to Browning's site, Support, Date Your Shotgun.
1953
1928
It was made in 1968
your browning auto-5, 16ga shotgun was produced in 1947.
Browning's web site has a sn search function.
Browning.com has serial number data under customer service.
Your shotgun was made in 1947 with the serial number you provided.
Check Browning's website under customer service, then date your firearm.
your browning auto 5 was made in 1922.
Your serial number indicates that you have a Browning 16 gauge auto-5 shotgun that was made in the year 1953.