A fine John Weiss & Son field surgeon's set, including Butcher's bone-saw with chequer-griped composition handle and three blades, bone- saw with hinged spine, finger-saw, six Liston knives with smooth ebony handles, bullet forceps, two hook forceps, two trephine heads with composition handle, lenticular, bone brush, various elevators, chain-saw with handles, rib-cutters and other instruments, contained in velvet-lined, brass-bound mahogany case with inset brass cartouche to the lid signed A.M.D., RESECTION INSTRUMENTS -- 17¾in.(45cm.) wide, one scissor lacking, circa 1850