2 Class 47s? with Network Rail Coaches

[gareth taylor]

I was at Kings Cross on the 25/2 and I think I saw 2 class 47s come into Platform 8, at 1002. Then departing at 1015. I was on the Cambridge Express train on platform 9a when I saw them.

Does anyone know what they were by anychance?

Thanks.

 

[matt]

Would have been 31601 and 31459 on a test train round the southern ECML