Browning.co has a sn function under customer service.
No way to answer without the serial number.
Impossible to answer without the serial number.
1979
You will have to call Browning with the serial number to find out.
1975
1976
1980
Made in 1981.
Browning.com has a sn function under customer service
Could it be that your browning hi-power is marked 70C19171? If it is then it was made in 1970.
Your browning hi-power was made by browning in 1967.
Browning.com has sn data under customer service