47813 = 0Z47 0904 Crewe TMD-Wolverton Centre Sidings to Crewe.
47813 + 57305 t'n't = 1Z57 0637 Liverpool-Bletchley from Crewe(813 to Euston then 57, replaced a 57)/ 5Z58 1236 Bletchley-Wembley TC/ 5Z59 1424 Wembley TC-Bletchley/ 1Z59 1557 Bletchley-Liverpool(813 to Euston, 57 to Chester then 813).