A 4-BORE SINGLE-BARRELLED ROTARY-UNDERLEVER HAMMERGUN, late 19th century

With 40 ¼ in. (102 cm.) rebrowned twist black powder only barrel, action with carved percussion fence, rebounding back-action lock, border engraved throughout, action and lock each retaining some original faded case-hardened finish, 14 ½ in. pistolgr