| Reference Number | TPC/5/7/10 |
| Title | Hardware for Patchboard (47.00 Gallery) New National Theatre |
| Level | Item |
| Date | 05 November 1973 |
| Description | Evershed Power-Optics Ltd drawing number V4314 sheet 1 of 3. Drawn by R King. |
| Extent | 1 drawing |
| Series | Evershed Power-Optics Ltd Drawings |