serial number:45721S2
builder: FN BROWNING D4
bore: 12
BARREL LENGTH: Inch 28
1st CHOKE : 1/2
2nd CHOKE : 3/4
chamber: Inch 2 3/4
stock LENGTH: Inch 14 3/8
weight: Pound 7.21
year of building: 1962
additional details:

D4 model, engraving by Dewil, 26" 1/4 3/4 chokes second barrels set, chopperlump barrels, ventilated top-rib, single-selective trigger, semi-pistolgrip stock, 3 pieces forend