1972
With the serial number suffix of S4,this indicates that your Browning Citori Lightning was made in Belgium for Browning in the year 1964.
i would go to the browning web site.Click on the customer service link and there should be a spot were you can research your browning citori lightning.
The browning citori serial number that you supplied indicates that your browning citori was made in 1982.
You are furnishing an incomplete serial number. Citori is a model of Browning.
The RP that is found in the middle of your serial number indicates that your browning citori was made by browning in 1978.
No such serial number used in the Citori line.
On the receiver.
You will have to call Browning to find out.
It's a 2007 Citori Browning.
1988
1989
You will have to call Browning. That model number is not published.