WP 7037 Jhajha A broad gauge Eastern Railway WP 7037 on Jhajha shed - 1979.01.12 The WP class were built with either spoked or Boxpok driving wheels. Sometimes these got muddled up during maintenance and overhauls as exemplified by the middle drivers on WP 7037. Built in Austria by Wiener Lokomotivfabrik-AG in 1957.