| Reference Number | TPC/3/23/17 |
| Title | National Theatre (Lower) Wagon Track Drive Diverters |
| Level | Item |
| Date | c 1973 |
| Description | Hall Stage Equipment Ltd drawing number Y75/31. |
| Extent | 1 drawing |
| Series | The National Theatre Side Wagons in the Olivier and Lyttelton Theatres: Operating and Maintenance Instructions |