Citori shotguns have become the "bread and butter" in Brownings lineup. Originally, the Citori Over/Under was an economical choice over the quality Superposed Models. Since it's introduction in 1973, the Citoris have been made in over a hundred variations. Your model is a Citori 20ga 3" Grade I, made in 1981. Citori's are now very collectable when in top condition. Values have a wide range due to so many variations and grades of the Citori and other Browning Over/Unders. Value is too difficult to be accurate without seeing the gun. Condition which includes the amount of original finish and original configuration will determine value. Recommend taking it to a gun shop for appraisal. You can also do your own investigation by looking at other models being sold that are in the same condition as yours. Try the gunbroker.com or a periodical called "The Gun List" You can also reference the Blue Book of Gun Values which can be purchased on line at various retailers.
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.
With the serial number suffix of S4,this indicates that your Browning Citori Lightning was made in Belgium for Browning in the year 1964.
You will have to call Browning to find out.
It's a 2007 Citori Browning.
1989
1988
You will have to call Browning. That model number is not published.
1985