C56 31 was the 31st of the Class C56 steam locomotives produced by Japanese Government Railways (JGR). It was manufactured by Nippon Sharyo in Ishikawa Prefecture in 1936. C56 31 was the first train to run on the Thai-Burma Railway, also known as the Death Railway. It operated there during the war, after which it was used in Thailand. After the war it was brought back to Japan and restored, and is now displayed in the Yūshūkan, the museum attached to Yasukuni Shrine in Tokyo. It is displayed without reference to the deaths during the construction of the railway, which are estimated at around 100,000.