Value is too difficult to be accurate without seeing the gun. Condition which includes the amount of original finish and original configuration will determine value. Auto 5's with recoil pads (other than Mag 12's) poly-chokes and compensators will reduce value. Recommend taking it to a gun shop for appraisal.
50-500 USD depending on specifics.
$1600 if in excellent codition
100-10000 USD depending on specifics.
To determine the exact value of a Browning automatic 20 gauge shotgun made in Belgium, a couple factors would need to be taken into consideration. Some of these things are the age and condition of the shotgun.
300-500 USD.
100-1000 USD or so
50-500 usd
50-1000 USD or more depedning on specifics.
0-400 usd
If that is the complete serial number, it was made in 1935. Value is $350-$650.
50-350 usd
100-1000 or more depending on specifics