JR East E531 series set K421 with a pair of bilevel "Green cars" approaching Abiko Station on the Joban Line in Chiba Prefecture, Japan
<a href="//commons.wikimedia.org/wiki/User:Chabata_k" title="User:Chabata k">Chabata_k</a>
CC BY-SA 3.0
<span class="int-own-work" lang="en">Own work</span>