Small bogie tank wagons were always unusual in Britain. Murgatroyds owned a series of small liquid chlorine tank wagons which were later owned and operated by British Petroleum Chemicals. These photographs, which include many detailed ones, were of a batch of 8 numbered T201 – 208 registered BRM 183943 – 183950 built by L&Y wagon at Grazebrook and by Standard. They carried about 35 tons but had very high tare weights of around 27 – 28 tons. These wagons were stored out of use from 10/83 and in 1991 bought by Allied Steel and Wire at Cardiff for conversion to internal use, being stored in the adjacent Tidal Sidings. Four air braked wagons are in a separate collection. A history of these wagons has been published Fidczuk, Peter (2007) Gas by Rail Part 3: Murgatroyd’s Railway Archive No. 15 p25 – 42 + back cover.