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.
http://www.chuckhawks.com/browning_citori_shotguns.htm
1985
1980
With the serial number suffix of S4,this indicates that your Browning Citori Lightning was made in Belgium for Browning in the year 1964.
100-1000 usd
1982
This is a 12ga made in 1973. It is the first year of production for the Citori Model.
White Lightning is a Citori. The Citori line has dozens of different versions that each have a product code. The White Lightning is a lightweight version of the Citori that is made with a silver or grayish white receiver.
1972
solder
1968.
100-1000 usd