168109, CH 09.48 Aylesbury-London Marylebone (2C27, 2L), Aylesbury station
With one its middle numbers missing I had to identify
this unit from its carriage number. 168109 waits at Aylesbury to work the 09.48 to London Marylebone. Note the work being undertaken to replace the perfectly serviceable footbridge because it did not meet disability requirements.