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HI, the gun was manufactured in 1969, Carl
your browning shotgun was made in 1963.
You have a browning superposed model shotgun which was made in the year 1968.The suffix of S8 is the indicator of the year of manufacture.
With the serial number that you provided,your Browning superposed shotgun was made in Belguim for Browning in the year 1955.
Browning's USA website does not provide date of manufacture information for Belgium made Brownings. They only provide this data for US manufacture and Japanese made.
Receiver
You will need to call Browning.
Your Browning superposed,over under 20 gauge shotgun was made in the year 1951;with the serial number that you have provided.
Couple of thousand USD
The 72S suffix to your serial number indicates that your Browning superposed shotgun was manufactured in the year 1972,by FN of Belguim for Browning.
Your browning superposed was made in 1968.
This gun was made in 1976