Wilhelm Schroeder Ltd. better known under the name Wilesco are the only remaining mass producer of steam toys left in Germany. They can be regarded as the inheritors of the Nuremberg tradition.
The smallest engine in their extensive range is the little D6 oscillating cylinder engine, which is also available in kit form as the D5. I bought a D5 kit some time ago from a local toyshop and put it to one side for a "rainy day". One cold wet day in January I dug the kit out and decided to build it. It was an easy, but most enjoyable project that passed the afternoon very pleasantly.
The resulting engine runs beautifully, as do all Wilescos, and makes a most interesting comparison with some of the older engines.