Model Rail Design currently produces a small range of locomotives for O-16.5 and On30 scales. the models are designed to be a simple fitt to standard and readily available propritory mechanisms such as the Hornby 0-4-0 (smokey Joe) other designs will be posted in the future. We also will assist modelers to produce prototypes that are currently not commercialy available, if you have a prototype you wish to produce please contact us at modelraildesign@internode.on.net and we will try to assist you.
Alan