The Wakashio is a limited express train service in Japan operated by the East Japan Railway Company. It runs from Tokyo to Kazusa-Ichinomiya and Awa-Kamogawa on the Bōsō Peninsula in Chiba Prefecture.
An E257-500 series unit on a Keiyo Line Wakashio service
A 183 series EMU in May 2002
The E257 series is a DC electric multiple unit train type operated in Japan for limited express services by East Japan Railway Company and built jointly by Hitachi, Kinki Sharyo, and Tokyu Car Corpora
An E257-0 series train on a Chuo Line Azusa service in January 2008
E257-0 series set on a Kaiji service
E257-2000 series set on an Odoriko service