1972
Your gun was manufactured in 1993 according to the serial number. They are well made highly sough after shotguns usually valuing between $1500 and $2000 depending on condition.
Contact the maker.
The gun was made in 1947.
1996
The value of a BT99 plus a stainless trap gun can vary significantly based on factors such as condition, age, and market demand. Generally, a used BT99 may range from $1,000 to $2,000, while stainless trap guns can also fall within a similar price range or higher, depending on the brand and features. It's best to consult current listings or appraisals for a more accurate estimate.
Value depends on the features of the gun, and the condition. Please see the link and look up your trap gun for a general idea of value.
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The gun was made in 1940.
The Vickers machine gun was designed in 1912 and was manufactured from 1912 till 1968.
1913
The gun was made in 1965.
1991