JNR (Japanese National Railways) steam locomotive no. C62 15 was a 4-6-4 and was one of 49 examples of this design of hudson built in 1948/9 according to Wikipedia. This shot was taken on 25/6/55 and depicts the 2.04 p.m. Tokyo to Hakata express departing from Kure. A member of this class holds the world speed record for a narrow gauge steam loco by achieving 80 mph.
[Mike Morant collection]