| Reference Number | TPC/5/6/431/1 |
| Title | Wiring Diagram for Sound/Fire Doors Lower Theatre |
| Level | Item |
| Date | 09 February 1974 |
| Description | Mole-Richardson (Stage & Studio Engineering) Ltd drawing number D18/384. Drawn by C R. |
| Extent | 1 drawing |
| Series | Mole-Richardson (Stage & Studio Engineering) Ltd Drawings |