Should be marked
All guns should have the information stamped onto the barrel. Most of the time it is near the action. Look on the barrel of your shot gun and it should tell you the make, model, caliber (or in your case with a shot gun) the gauge, for shot guns the size of shell the gun takes, and finally the choke the shot gun has. If it is a screw on choke it should saw on it.
Requires in person examination.
No, we have no idea what model. It is not a Browning Arms Co gun if it was made in 1920
Can't answer about "Volunteer" question. Please tell which model. Volunteer is not a model by Browning
Compare to known variants.
Compare to known models
The old joke is to saw it in half- and count the rings- but there is no one way to tell the age. It will depend on the make and model. In many cases, knowing the make and model and serial number, we can access published information. Some companies, such as Ruger and Browning, have it on their websites. Some guns, such as Remington, used a letter code to tell the date. In others, we can only tell the range of years that model was made. And with some guns, we can't tell at all, because we cannot confirm a maker.
Made in 1995. You did not provide the entire sn so there is no way to tell model. There should be three numbers after NV which would ID the model. You can always call Browning and they will tell you.
This weapon will need to be appraised and compared against known samples.
Possibly if it is a Browning made by Miroku.
Can't tell by the product code alone. Contact Browning, or search the model index on the Browning date you gun web page. The link is below.
1997