A World War I field surgeons instruments case, signed Meyer & Meltzer London, the lid with forceps, lift out tray with liston knives, lancets, two trochar and cannulae, trephine, the lower case with trphine and handle, bone saw and small bone saw, two silver tracheotomy tubes and spools, bullet probe, needles and other instruments, in velvet lined brass bound mahogany case, with protective metal casing - 17½in wide