| There are 5 different designs which are fairly easy to tell apart, however they were given by 7 different diagrams. That is because some started life as second class coaches and others were third class. | ||
| Diagrams T3 and T4 | 25' long 16' wheelbase |
 Diagrams T3 and T4 different from all of the other diagrams as they had a separate Guard's door; all the other designs only had a
combined Guard and Luggage double doors. |
| Diagram T7 | 26' long 17' wheelbase |
 Three panels between the double doors and the coach end. |
| Diagram T8 | 26' long 17' wheelbase |
 Two wider panels either side of the double doors and no panels between the compartment windows. |
| Diagram T9 | 26' long 17' wheelbase |
 Two slim panels either side of the double doors and panels between the compartment windows. |
| Diagrams T15 and T16 | 28' long 19' wheelbase |
 One wide panel either side of the double doors and no panels bewteen the compartment windows. Also former compartment has been incorporated in to the guard/luggage van. |