Sargant Brothers (previously Sargant & Son) on Charlotte Street in Birmingham were gun and sword manufacturers and produced rolled gun barrels bored with steam machinery and were manufacturers for the Ordnance Department in the U.K. The lock has a sitting fox over "IR" at the center, a fenced iron pan, border engraving, and "SARGANT/BROTHERS/1850" on the tail. The smoothbore barrel has a blade front sight, two "wedding bands," notch rear sight, "LONDON," a "sitting fox/IR" mark, and London proof marks on the left. It is fitted with the classic Northwest Trade gun serpent side plate, large iron trigger guard, long trigger, and brass ramrod pipes and buttplate. The stock has tear drop shaped flats.