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

With 42 ¾ in. (108.5 cm.) browned twist black powder only octagonal to round barrel, action with carved percussion fence and non-rebounding back-action lock each retaining some original nickel-plated finish, and figured 13 ¾ in. semi-pistolgrip stock