serial number:31418V4
builder: FN BROWNING
bore: 20
BARREL LENGTH: Inch 26
1st CHOKE : 1/2
2nd CHOKE : 3/4
chamber: Inch 3
stock LENGTH: Inch 14 1/4
weight: Pound 5.91
year of building: 1964
additional details:

B1 model, ribless chopperlump barrels, single-selective trigger, semi-pistolgrip stock