| Reference Number | TPC/3/8/1 |
| Title | Lyttelton Theatre Safety Curtain Circuit Diagram |
| Level | Item |
| Date | c 1975 |
| Description | Mole-Richardson (Stage & Studio Engineering) Ltd drawing number D18-365 issue B. |
| Extent | 1 drawing |
| Series | National Theatre Technical Manual for Hydrarest Unit |