1957 Browning A5 12 gauge "Special Steel" made in Belgium S/N M29626, Condition 95%(no rust, few small scratches in the finish not the wood) what's it worth?
Are there any numbers before the M? We've had several believe their gun is 1957 but didn't realize those other numbers were part of the serial number.
Even so, there are still too many variables here. Rib, no rib, choke, modifications... You say 'no rust' but is there bluing wear? Even the barrel marking makes a difference (guns with later barrels don't bring quite as much).
Good pictures help. $400-$1000 so far.