We think this may well be the oldest main line diesel operating on the network which would make it almost
50 years old! Only 11 production class 31s were built as 'skinheads' with the rounded roof and this would appear
to be the 5th one of these. Class 31s have a really dated look about them and the fact that a few survive today
working for FM Rail or in this case Network Rail is a real bonus. Pictured making a suitably claggy
departure on Test Train from London Euston on the 11th March 2006 is 31105.
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Photo from James & Martin's Picture Collection Copyright 'Jampics' m.hawkes7@ntlworld.com 
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British and Foreign Railway Pictures <A HREF="http://jampics.fotopic.net/"> Jampics Fotopic.</a>