Your Browning BLR model rifle was made in the year 1969.
The suffix of M73 indicates that your Browning BAR semi-auto rifle was made in the year 1973.
You will have to call Browning with the serial number.
1971
The suffix of M71 was assigned to the Browning model BAR(Browning semi-auto rifle) which was made in the year 1971 in Belgium for Browning.
The suffix of M9 indicates that your Browning BAR semi-auto rifle was made in the year 1969.
made in 1989
Your Browning 22cal semi-auto rifle was made in the year 1962 with the 2T prefix to your serial number.
Sometime in the 80s. You will have to call Browning to narrow it down further.
Please include the model number of the rifle to get a answer to your question.
The prefix of 4T indicates that you have a Browning auto rifle in 22 long rifle that was made in the year 1964.
1969