| Reference Number | TPC/3/23/19 |
| Title | National Theatre (Upper) Resetter Unit (Wagons) |
| Level | Item |
| Date | 24 September 1974 |
| Description | Hall Stage Equipment Ltd drawing number Y75/36. Drawn by B D. |
| Extent | 1 drawing |
| Series | The National Theatre Side Wagons in the Olivier and Lyttelton Theatres: Operating and Maintenance Instructions |