Numbering Class Type Seating Weight Batch Introduced Diagram Lot. No
W50647 - 50695 120/2 DMSL 68 2nd 36 tons 10 cwt 1 1958 586 30334
W50696 - 50744 120/1 DMBC 18 1st + 16 2nd 36 tons 1 1958 587 30335
W51573 - 51581 120/1 DMBC 18 1st + 16 2nd 36 tons 7 cwt 3 1961 636 30515
W51582 - 51590 120/2 DMSL 68 2nd 36 tons 10 cwt 3 1961 637 30516
Sc51781 - 51787 120/1 DMBC 18 1st + 16 2nd 36 tons 7 cwt 2 1959 ? 30559?
Sc51788 - 51794 120/2 DMSL 68 2nd 36 tons 10 cwt 2 1959 586 30560
W59255 - 59301 179 TSLRB 60 2nd 31 tons 1 1958 561 30336
W59579 - 59588 179 TSL 68 2nd 30 tons 12 cwt 3 1961 572 30517
Sc59679 - 59685 179 TSLRB 60 2nd 30 tons 12 cwt 2 1959 561 30561

The vehicles numbered 50xxx were renumbered into the 53xxx series in 1983.

All the class numbers were later changed to just 120.

Set Nos
In late '59 the WR allocated set numbers. Cross Country sets were generally 5XX, and carried a depot code prefix. The numbers were displayed on small rectangular plates bixed in clips to the solebars of the power cars only. An example, noted in 12/59 was: TYS 504  50661 / 59269 / 50710.