The 9mm Browning, also known as the Browning Hi-Power, was first introduced in 1935. It was produced until 2017, with various models and serial numbers issued throughout its production run. If you have a specific serial number in mind, you may be able to determine the year of manufacture through Browning's historical records or resources.
1989
browning used the last two digits of the year before the serial number on the 9mm from 1970 until 1976 so your 9mm was made in 1973
The serial number.
1986
your browning hi-power was made in 1974.
You must call Browning.
Your browning hi-power was made by FN of belguim for browning in 1969.
Exactly how is the pistol marked? 9mm browning serial number 72C44338
1971
Browning's customer service can assist you.
You must call Browning.
1990.