 LNWR Dock Tank

The LNWR 317 class, (also known as Saddle Tank Shunter, Dock Tank or Bissel Tank) consisted of a class of 20 square saddle-tanked steam locomotives built by the London and North Western Railway at their Crewe Works between 1896 and 1901.They had a very short coupled wheelbase, with a trailing Bissel truck to carry weight.