A Rissak patent needlefire rook rifle

A Rissak patent needlefire rook rifle, heavy octagonal barrel 22.5 in., one standing and one folding leaf sight, break open action locked by a coarsely threaded turn-bolt operating through the standing breech, striker (truncated) actuated by an external hammer via an articulated joint, border and scroll engraved action, checquered straight hand grip, steel butt plated with stepped and engraved tang.