Circular Metal Case for Sterilising Needles A circular metal box used for sterilising needles. It consists of a two-piece metal box that can be opened by pulling. Inside, there is a perforated two-piece metal box where the needle would have been placed for sterilisation. The latter compartment contains a cloth with stains and a wire [either horsehair or plastic]. The wire is damaged, and the cloth is stained. The case presents corrosion and scratches. 1925-1975