| Reference Number | TPC/5/2/115 |
| Title | National Theatre Foyer Lighting. Circuits Type Z. Dimmer Level and Switching |
| Level | File |
| Date | 01 August 1974-05 April 1974 |
| Description | Theatre Projects Consultants Ltd drawing number 904/268, unnumbered issue and issue 3. |
| Extent | 3 drawings |
| Series | Theatre Projects Consultants Ltd Drawings |