You will have to provide the serial number. Alternatively, you can call Browning with the serial number and they will tell you. Some serial number information is on line at their website.
To determine the year of manufacture for a Browning Citori 12 gauge shotgun with the serial number 17669NX753, you can refer to Browning's serial number lookup charts. The "NX" prefix indicates that the shotgun was manufactured in 1993. Thus, the year of manufacture for this specific shotgun is 1993.
1924
1973
1980
Not a valid Browning serial number.
It was made in 1929
1929
Your Browning superposed,over under 20 gauge shotgun was made in the year 1951;with the serial number that you have provided.
Impossible to answer without the serial number.
You will have to call Browning.
The last 2 letters in your serial number NZ indicate that your Browning 325 in 20 gauge was made for browning in the year 1991.
Provided that is the entire serial number, 1912.