File:TheExpressCoachesBasis.jpg

These are Southern Railway standard non-corridor carriages first built by Maunsell in 1925. They have both wide and narrow windows much like the TTTE Express carriages seen throughout Seasons 1 to 2 and 12, which they draw their basis from.

The only difference is that the TTTE express carriages do not have corridors built with them.

Photo from Southern Railway E-Group.