What is the value of a 1935 Browning Sweet Sixteen?
Not all 16ga Auto-5 shotguns are Sweet Sixteens. That is a specific lightweight model that was introduced in 1936. Chances are you have a standard weight Auto-5 in 16 gauge. Either way, it originally had a 2 9/16" chamber and is not suitable for modern 2 3/4" ammunition unless it has been modified for the longer shell. Value depends on condition. Anywhere from $350-$1000.
lets start with the fact that your Browning auto-5 shotgun was made in the year 1935.That being said,I can say that your shotgun will range in price from 375-550 dollars depending on overall condition,and a good bore.You do not say what condition the shotgun is in relation to the amount of original finish remaining.That is where the value lies.