GBRf 66756 'Royal Corps of Signals conveying former LNER Mark 4s and a couple of DVTs as 5Z19, 08.47 Worksop Down Yard to Widnes Transport Tech, through Brighouse on 3rd February 2020.     I understand that the former LNER vehicles are to be used by Grand Central in their forthcoming Blackpool North-London Euston open access service.  Depending on how many vehicles Grand Central are taking, this could be the first and last time that Mark 4s head along the Calder Valley