Value of ANY gun is based on exact make, model, and condition. Without those, we really cannot make a guess. Sorry, but you will really need a hands on assessment. If you have a gun show in your area, there will usually be collectors and dealers that can give you an idea of values.
42 years old
The value varies widely depending upon the style and condition of the weapon. Due to this, you will need to have the firearm appraised by an expert.
29 years old; 100-2000 USD
That gun was made in 1964 - making it 46 years old.
I have been offered $1600 for my Browning light twelve with the gold trigger 10 years ago. The economy is suffering, but I know I can sell mine for $800.00 easy. But why, it is a very good gun.
your standard weight browning auto-5 shotgun was made by FN of belguim for browning in 1961.That makes it 50 years old.The value of these auto-5 shotguns is running between 475-600 dollars for the standard model auto-5 shotgun.
Please see the link below http://wiki.answers.com/Q/What_is_the_value_of_a_Browning_Sweet_Sixteen
The Browning light 20 which was introduced in 1958 is selling for between 460-650 dollars for a shotgun with between 60%-90% original condition and a good bore.
Browning made the "Baby Browning" in Belgium for several years, on the muzzel of this tiny 6 shot automatic it states .6mm. It does in fact take 25 caliber ammunition.
50-1000 usd
Your Browning BAR semi-auto rifle was one of the first ones made and imported from Belgium in the year 1967.The M7 suffix is the indicator of the year of manufacture.In 1967 Browning began selling the BAR line of rifles.
World war 1 lasted from 1914-1918. So it lasted for 4 years!