Ian Martin has been researching the last fifteen locomotives built by the Worcester Engine Co Ltd to an order from Russia. He has found a reference to these locomotives in a Russian language book written by a Mr Rakov. In this book Rakov states that "An English Company in Worcester (Yctep) built the following 2-2-0 (ie 4-4-0) locomotives ;- numbers 249 to 263 (works numbers were 70-84). They were classified class K for passenger trains. The order was for the Nicholas Railway and they ran between Moscow & St Petersburg. The design was so successful that the Russians built further batches themselves in 1871 and 1880".
The drawing about is from the collection of Kidderminster Railway Museum.