| Reference Number | TPC/5/7/35 |
| Title | Proposed Patchboard and Rolling Control Panel (Orthographic Views) - Nat Theatre |
| Level | Item |
| Date | 19 October 1973 |
| Description | Evershed Power-Optics Ltd drawing number W6793 sheet 2 of 3. Drawn by R King. |
| Extent | 1 drawing |
| Series | Evershed Power-Optics Ltd Drawings |