Fabrique Nationale or FN is the maker.
Browning.com has sn data on their web site under customer service.
Belgium
The rifles action was made in belgium by FN they were suplied to High Standard who actually built the rifles for Sears in the late 40s up to late 50s these are high quality and sought after rifles in excelent condition they can easily bring 400 to 500 dollars.
50-1000 usd
Sometimes by the complete sn, sometimes by the action and features.
Browning's web site has what you are looking for.
For a specific answer, please provide the model number. Most guns stopped production in Belgium in the 1970.
Probably an assembly number.
1965 mauser action safari grade
It will be stamped into the action (the cylindrical part that encloses the bolt)
In violating the Belgian neutrality, the Germans marched through Belgium to attack France. This action greatly influenced England's entrance into the war.
What model gun is this?