| Reference Number | TPC/5/2/115/2 |
| Title | National Theatre Foyer Lighting Circuits Type Z Dimmer Level and Switching |
| Level | File |
| Date | 05 April 1974 |
| Description | Theatre Projects Consultants Ltd drawing number 904/268. Drawn by R G B. Two copies, one annotated. |
| Extent | 2 drawings |
| Series | Theatre Projects Consultants Ltd Drawings |