Year	Type	Nos.
1927	W2 Class	W2 456, W2 643, W2 646
1935	W5 Class	W5 795
1939	SW5 Class	SW5 730, SW5 732, SW5 739, SW5 750, SW5 789, SW5 812, SW5 815, SW5 819, SW5 830, SW5 840
1939	SW6 Class	SW6 877, SW6 887, SW6 894, SW6 902 - SW6 903, SW6 927, SW6 942, SW6 962
1951	W6 Class	W6 996
1955	W7 Class	W7 1001, W7 1026, W7 1033, W7 1035