| Reference Number | TPC/5/7/13 |
| Title | [Control Panel - Drum Revolve - National Theatre] |
| Level | Item |
| Date | 14 March 1974 |
| Description | Evershed Power-Optics Ltd drawing number V4402 issue A sheet 1 of 2. Drawn by R King. |
| Extent | 1 drawing |
| Series | Evershed Power-Optics Ltd Drawings |