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
Browning began producing the Citori White Lightning model in 2015. It is a versatile over/under shotgun known for its lightweight design and classic aesthetics.
With the serial number suffix of S4,this indicates that your Browning Citori Lightning was made in Belgium for Browning in the year 1964.
1982
100-1000 usd
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
1968.
solder