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.
$1600 if in excellent codition
50-1500 USD depending on specifics.
Depending on age and condition of your browning semi-auto shotgun?You will find the value ranging between 350-550 dollars for your browning auto-5 shotgun.
50-350 usd
100-1000 USD or so
50-500 usd
Impossible to answer without the serial number.
There are many different models of Browning shotguns that were made in Belgium by the Fabrique Nationale manufacturing plant in Liege/Herstal. The oldest of which is the Auto-5 Automatic Shotgun which began in 1903. Some Superposed shotguns are still made there.
No such thing as a 22 Shotgun.
Semi-automatic shotgun
No.