Better model railways start at Worsley Works - Designers and producers of quality etched brass model railway kits in a variety of scales Worsley Works specialise in producing the etched parts of model railway kits. We use the term 'Scratch Aid' to help denote that they are not complete kits as we do not include any castings, wire, glazing etc. and no instructions are provided. They 'are' however designed to fit accurately together and are straight forward to build. Can we do it By etch we can Our extensive range of computer generated artwork can be used to produce model railway kits in any scale.