1973
You will have to call Browning.
You must call Browning to find out.
I would need to know what model of Browning you are asking about?I could then help you identify the year of manufacture.
I would contact browning arms at there web site.they have a place to date your browning firearm.
A Johnson 20R73, and 20RL73 were both manfactured in 1973.
This would be a Browning Challenger .22 pistol made in 1970.
Check the Browning website, under Customer Service.
I would need the type of browning shotgun you are asking about,and a serial number which you did not provide.
The serial numbers for the Browning Twelvette are not in the public domain.I can say that this model was made during the years 1957-1971.I would contact Browning directly for the percise year of manufacture.
I would go to browning .com.They have a link to serial numbers on the sight that should help you.
Would you please indicate what model of Browning shotgun,or rifle you have along with the serial number listed.So that I may answer your question.
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.