Serving a Double Purpose on the Keisei Chiba Line

Set 3668 of the Shibatetsu 3600 series EMU at Makuhari-hongo StationYou may remember that I wrote about the retirement of the Shibayama Railway (Shibatetsu) 3500 series EMU in March this year. At that time, I mentioned that I would save the replacement for the 3500 series for a future post.