| Reference Number | TPC/5/4/609 |
| Title | National Theatre Upper Auditorium Dimmer Rooms Etc |
| Level | Item |
| Date | 24 September 1968 |
| Description | Denys Lasdun & Partners sketch number 552/SK3/24.9.68. Drawn by G F. |
| Extent | 1 drawing |
| Series | Denys Lasdun & Partners Drawings |