I have a brand new in the box Peerless Lightweight model 4 from what I can tell. They seem to be all Aluminum design and don't have a model # stamped on them. They only have a Pat# which is 2,759,349. The box is tan cardboard, with instructions under the top lid. They come wrapped in a wax type tan paper with a red stripe printed on it. The box has Serial # 11167 written on it in pencil.