A .400 CALIBRE NEEDLE-FIRE ROOK RIFLE, MID-19TH CENTURY with octagonal twist sighted rifled barrel, fitted with folding leaf back-sight, case-hardened action fitted with rotary screw-in breech lever on the right, figured walnut half-stock, chequered fore-end and grip, steel trigger-guard and butt-plate, and horn fore-end cap 64.8cm; 25 1/2in barrel