On the but
You cannot the serial number is required.
You will have to call Browning with the serial number to find out.
You are stupid ;b
The serial number only tells one where in the run & what year it was manufactured in, not who made it.
Generally, you can't. It might be possible with Browning, but, you will need to call them with the serial number.
Depending on the model it can be found on the bottom of the receiver or on the barrel. how to find the year of a belguim browning over and under shotgun by the serial number 53125
You must call Browning with the serial number to find out.
Frame
Check the entire receiver carefully.
Look on the receiver and barrel.
Look by the release lever.